Personal Weather Stations at Weather Underground

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Over the past 4+ years, Weather Underground's community of Personal Weather Stations has grown into a large contingent of thousands of stations that continues to grow on a daily basis. These stations have allowed our users to see what the weather is doing not only in their zip codes or neighborhoods, but on their street itself.

We are excited to see the numbers of Personal Weather Stations increasing, especially in recent months, so we have created this environment to help create a tighter sense of community amongst not only our Personal Weather Station owners, but also our members in general.

Due to the varying number of platforms and software packages capable of uploading station data to us, a variety of problems can and do arise during the configuration process. This environment will provide a quick way of getting solutions to these problems in case I cannot get to them right away.

We want the Personal Weather Station project to continue to grow...and this where you come in. Please let your family and friends know of the project and urge them to get in on the fun. Personal Weather Stations are going to be very important in transforming meteorology from a non-exact science into at least a more-exact one.

Lastly, as a trained meteorologist I love watching weather develop and tracking it around the world. If you have any interesting weather related stories that you would like to share, I would like to hear them. Better yet, if you are a Personal Weather Station owner who captured interesting weather (strong frontal passages, wind gusts, dramatic swings in temperature) via your station's data, post it here!

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98. dc9man
9:42 PM GMT on July 21, 2015
I live on a hilltop overlooking the Yellowstone River in Livingston, MT, the weather up here at 4542 MSL is often quite dramatic with horizon views not obstructed by trees and buildings especially to the east, south, and west. We have Sheep Mountain immediately to our north so that view is mostly restricted but overall our location is excellent for viewing the dynamic development of weather especially the summer afternoon convective activity. As a retired airline pilot I appreciate fully the ever changing varieties of weather systems that come our way. My only question is how to I hook up my Davis Vantage Pro2 wireless to my pc, do I need some hardware and software to make the connection?
97. Tmax
1:01 PM GMT on October 20, 2012
Quoting shauntanner:
I agree, some stations are position in places that are not good for data collection. When these stations are pointed out, I usually write to the owners to offer help in getting the station in the correct place. Please let me know of any station that seems to be reporting bad data.

It doesn't seem to work all that well. Weeding out these stations here was easy though. I have been on since 2002 and have seen 4 other stations come online. I also saw the return of our airport station after it was destroyed by 121mph straight line winds. I will not mention the damage it did to me. However it’s very hard to talk with them thru Wunderground as the msg system works here only. It doesn't send to their primary email address and often go unnoticed because of it. It is rude to gps these people and go talk to them one on one. It took 1 year for 1 station to do ASL baro correction. Other station operator I knew went completely offline simply because we were so close it was useless, and he was moving anyways. Now there is a station online locally that simply produces temp data and nothing else. I am the one being yelled at because I am the 1st pws in my community, and people look at all the data from all stations to make their daily plans. So when they see some bad data guess who they email. I have a website and they make good use of its emails. You need to make the msg's sent thru your system also send emails to the address they sign up with. Essentially I have not found the msg system here helping in weeding out the bad stations. It's not easy. These stations may simply need help, but without a direct way to contact them most never see the msg's they get thru here. I have missed more than 3 dozen over the years that I didn’t notice till months later. So believe me I know what I’m talking about, and i hate hitting that report button as i have never seen anything done to the stations reported here. Sorry Shaun but this one has me wondering. Thanks though Wunderground rocks.
Member Since: February 18, 2003 Posts: 6 Comments: 15
96. davss
10:46 PM GMT on September 15, 2012
Quoting shauntanner:
I agree, some stations are position in places that are not good for data collection. When these stations are pointed out, I usually write to the owners to offer help in getting the station in the correct place. Please let me know of any station that seems to be reporting bad data.


Is anyone actually reading and responding to tickets on your side? I have submitted three tickets and sent one email and still have no reply to my missing data problem. Attach all correspondence below.


On 12 Sep 2012, at 21:12, David Sadowski wrote:

Hi Support,

I have logged already three tickets through your site but have not received any response to any of the them. I do not know whether this is some IT glitch or someone not interested in investigating my problem. Therefore, cold you kindly reply to me please so I know whether I should expect anything from you or start looking for other solutions.


Re: [#AUR-500891]: MJJ-295025 and another ticket NO RESPONSE NOR ACTION

On 10 Sep 2012, at 12:10, wrote:

David Sadowski,
Your Ticket has been received and a member of our staff will review it and reply accordingly. Listed below are details of this Ticket. Please make sure the Ticket ID remains in the subject at all times.

Ticket ID: AUR-500891
Subject: MJJ-295025 and another ticket NO RESPONSE NOR ACTION
Category: General
Priority: Critical
Status: Open

1. Learn more about Weather Underground's Best Forecast! _a=viewnews&newsid=5&group=default

Thank you for your support,

Weather Underground

Re: [#MJJ-295025]: DWN-682671 not actioned

On 7 Sep 2012, at 15:58, Bad Data Report wrote:

David Sadowski,
Your Ticket has been received and a member of our staff will review it and reply accordingly. Listed below are details of this Ticket. Please make sure the Ticket ID remains in the subject at all times.

Ticket ID: MJJ-295025
Subject: DWN-682671 not actioned
Category: Bad Data Report
Priority: Urgent
Status: Open

1. Learn more about Weather Underground's Best Forecast! _a=viewnews&newsid=5&group=default

Thank you for your support,

Weather Underground

Re: [#DWN-682671]: No data coming through from my station

On 5 Sep 2012, at 18:24, Personal Weather Stations wrote:

David Sadowski,
Your Ticket has been received and a member of our staff will review it and reply accordingly. Listed below are details of this Ticket. Please make sure the Ticket ID remains in the subject at all times.

Ticket ID: DWN-682671
Subject: No data coming through from my station
Category: Personal Weather Stations
Priority: Critical
Status: Open

1. Learn more about Weather Underground's Best Forecast! _a=viewnews&newsid=5&group=default

Thank you for your support,

Weather Underground
Member Since: July 9, 2011 Posts: 1 Comments: 0
95. VeroPoe
2:50 PM GMT on September 08, 2010
I'm still a rookie here. I got my station (KMIHOWEL9) online ok, but It quits uploading after an hour with the computer unattended. I realize it probably is a setting on windows that ghoes into sleep mode or whatever. I don't know how to remedy it. Any help out there?
Member Since: August 12, 2010 Posts: 0 Comments: 0
94. mountainkat
11:43 PM GMT on October 02, 2009
Help! I am having a fit connecting my Davis vantage vue to wunderground.The instructions are as clear as mud.
93. GaryVA
10:57 AM GMT on July 27, 2005
With one of the more popular weather forums having recently been acquired by a commercial weather services firm - who is actively supporting the bill introduced by Senator Santorum (PA) that, according to many, would strip the National Weather Service of much of its duties and responsibilities - I created a new weather-oriented forum as an alternative for those who choose not to make the move with the other one. Weather enthusiasts of all levels are welcome, and there are a number of specific topic areas relating to personal weather stations, hence my posting here. If you'd care to pay us a visit, we're at
Member Since: February 22, 2003 Posts: 22 Comments: 2
92. cjfasciano
10:42 PM GMT on July 15, 2005
oh my station is KPANORTH$
91. cjfasciano
10:41 PM GMT on July 15, 2005
can someone check my station.... i dont know why this keeps on skipping on me, when there is nothing uploading to underground. it is functioning fine but why won't it upload i guess is what I am trying to say. if you are near my area, maybe we can find out if i can ask permission for you to visit and look at it. can someone help?
90. Weathership
7:15 PM GMT on July 13, 2005
I'm trying to decide bewteeen VP2 or RW is near Buffalo NY. Thoughts would be appreciated. Thanks
89. GaryVA
12:23 PM GMT on July 13, 2005
I've noticed a number of questions about accuracy and positioning of weather instruments. May I suggest that everyone wanting to maximize their data accuracy review the Instrument Siting Guide produced by the Citizen Weather Observer Program (CWOP) that transmits data from Personal Weather Stations into NOAA servers where the data is used in forecast models and for many other purposes. You don't have to participate in CWOP, of course, to benefit from the guide. But most software that will send data to the Weather Underground will also send it to CWOP, and I'd encourage everyone to participate in this program. It's truly a community service. As with Wunderground, your data will also be posted to the internet, and can undergo automated quality checking if you so desire. You can see my data here and one of the automated quality control check of my data here.

In the interest of disclosure, I'll mention that I was one of the technical editors of the CWOP guide mentioned above.
Member Since: February 22, 2003 Posts: 22 Comments: 2
88. Criqet
10:48 PM GMT on July 06, 2005
Shuan, I changed the weather station ID but it isn't uploading the new ID is KTNBRUCE2 can you help?
Member Since: October 23, 2001 Posts: 26 Comments: 10
87. JosephB
7:58 PM GMT on July 04, 2005

I've been involved with electronic instrumentation for a number of years. Most of the electronic instrumentation that I've used is quite reliable, if the transducers are designed and built properly. As far as temperature transducers, the biggest culprit I've seen is moisture destroying resistance devices such as RTDs and thermistors. If the probes are properly sealed such that moisture cannot leak in and saturate the chip, my experience is that they work fine and retain their accuracy.

I find it particulalry odd that a weighing device would be so unreliable. Electronic scale technology has been around for "ages", relatively speaking. Electronic scales are frequently used in industrial applications, and can built to be quite robust.
86. thegreatdr
1:20 AM GMT on July 04, 2005
If anyone out there takes manual obs the old-fashioned way, I know a website or two where you can submit them:
(running for over 10 years now)

(up the last 3-4 years)

Hope this helps someone out,

85. Criqet
11:05 PM GMT on July 02, 2005
Problem solved.
Member Since: October 23, 2001 Posts: 26 Comments: 10
84. Criqet
3:35 PM GMT on July 01, 2005
I recnetly moved from Florida to Tennessee. I changed all my weather staion setting but it's not up yet.

Did I do this right or should I have made a new weather staion

the old ID is KFLNEWSM1

How can I tell if it's uploading?

Member Since: October 23, 2001 Posts: 26 Comments: 10
83. aero
5:08 PM GMT on June 19, 2005
TO: Tom of Carter Lake

The source that I have that Electronic
temperature sensors and readouts become inaccurate over time is my 41 years working in the field of Meteorology and climatology, I personally installed 140 electronic units and know how inaccurate they can become over just a few years in the field. Even worse are the electronic automatic rain gages that most climatologists and hydrologists refuse to use because of their "splash by" or under reporting of heavy precipitation, because the tipping bucket can't keep up with heavy rainfall.
The Official 8 inch manual rain gage is still the most accurate and the Standard that electronic rain gages are measured to.

I work currently at an airport with the latest weighing type rain gage and it needs constant attention by maintenance personnel. I always check it against the manual gage and often find errors and even gross errors by the automatic electronic weighing telemetered gage.

Somethings can be automated in life, and there are other things that can't be, ie, the visibility sensor used with the ASOS (automatic surface observation system) at major airports
reads good in high visibility conditions with no sector variability, but when the visibility gets low, especially with sector visibility differences the automatic sensor sends out erroneous data frquently.

The Sky condition sensor on ASOS also
does a poor job of reading the layers of clouds and heights of cloud bases.
The height sensor reads not only the base of towering cumulus clouds but also the buldges of the cloud as another layer.. Also the height sensor can't read cloud heights over 12,000 feet.

Worst of all is the cloud layer amount as read by ASOS. Often ASOS reads
a SCT condition as OVC or BKN because it apparently has a difficult time figuring the cloud speed.

The most common failure on ASOS is the
dew point sensor that needs attention often. The Wind sensor freezes up in Freezing Rain or drizzle.

Because the unit is subject to all out
failure at times, a manual observer must read the liquid in glass thermometers every six hours plus at midnight at major airports.

ASOS can't read the amount of new snow every hour, or total snow depth on the ground.

The problem with weather observers is that they want a simple solution because they are too indolent to melt down a can half full of snow, and settle for a less accurate method of heating the can, causing evaporation.

I'm sticking with the Standard... Manual Instruments and the exercise
walking out to the instruments is
82. KevDev
7:09 PM GMT on June 16, 2005
Hi Greg,

Oops, forget my question about vanprod. I tried at the other perl script a while back to see if it would work and it did not (but I figured it was the USB thing).

Now that you say vanprod works, I will definitely give it a try. If I can see how he communicates, I might be able to adapt it to my Java program.

Thanks for your input.

81. KevDev
7:08 PM GMT on June 16, 2005
Hi Greg,

That's good news. What is vanprod?

I know what you mean about writing to /dev/tty.SLAB_USBtoUART, I can open it and send data with no errors but I don't get a response from the console.

With one exception: if I start up WeatherLink so it initializes the device then I can communicate with the console just fine. As soon as I stop WeatherLink, my software no longer talks to the console either.

So I must not be initializing something properly.

I'm glad to hear that you have it working though; that means there is hope! It is frustrating having to rely on that dang PC'ish Davis software. It hangs requiring a restart every so often.

80. gregtravis
8:40 PM GMT on June 13, 2005


I'm using a Vantage Pro2 on an iMac (20" G5, OS X Tiger) with the USB no problem. I use vanprod to query the station and upload to Weather Underground (station ID is KINBLOOM9).

The Vantage Pro console appears as an ordinary TTY device via the Silicon Labs USB to serial interface. You just read/write to /dev/tty.SLAB_USBtoUART just like a serial device.

greg travis
79. gatorguytj
1:44 AM GMT on June 13, 2005
I have read several posts about accuracy. While I totally agree you should make sure that your sensors are accurate to actuals at your location, I do not necessarily agree with checking them against other local readings. Readings change rapidly with elevation and due to other nearby environmental influences. While I check my own equipment against a mercury thermometer and a sling psychrometer I have no interest in comparing or better yet adjusting my readings to the local METAR which is at the airport only a mile away. If I am just going to have my readings match the local METAR, whats the point of having my own weather station.

I think we need to remember with a PWS we are measuring conditions in our own environment. If the electronics are accurate then what they read is what they read. I am reporting weather in my backyard. I know that the wind speed is not accurate to the "outside" world, but it is the wind I am experiencing in my backyard and is also likely what my neighbors are experiencing.

Never understood why most of the weather is recorded at the airport. Who lives at the airport anyway!!

Just my two cents.
Member Since: June 22, 2003 Posts: 0 Comments: 0
78. JosephB
10:02 PM CDT on June 10, 2005
Regarding the flag, Don't feel bad, I did it it too...
77. cairophoto
7:13 AM GMT on June 10, 2005
i am sorry i pressed on an obscene flag on one of the posts by mistake while scrolling upwards with the mouse wheel
76. liquidsquid
3:48 PM GMT on June 07, 2005
It is understandable that a humidity sensor can be contaminated by dust, fingerprints, etc. If you live near the ocean and get salt dust and spray, it can cause massive errors on the sensor by making it more conductive and read a higher humidity. Most of these sensors can be cleaned by soaking in distilled water to dissolve off conductive salts. You may also be able to use some industrial solvents like TriChlorEthane of top quality rubbing alcohol if contaminated with other substances.

However a temperature sensor that goes bad or out of calibration after time is a bad design to begin with. If a small junction with two bare wires swinging in the breeze is considered accurate, it is only accurate in a sheltered existence, which means a lab. The outdoors temperature sensor and all surrounding devices need to be sealed against moisture and harsh conditions to prevent corrosion and contact with dust, salt, etc.

A good electronic sensor should be able to match the best liquid thermometers out there if properly engineered, and then avoid the human error factor, or simply the human lazy factor (me). Many electronic sensors are used in industrial production applications, and if they were to go this far off accuracy in such a short time, there would be some big problems with the parts manufacturers reputations.

Personally I have seen the inside of some of the more popular weather stations, and I am not impressed. Wires exposed when they should be coated, junctions up in the breeze with exposed wires that are prone to RF interference and weather damage, and so on. I understand that the costs have to be kept down, but some things just dont cost that much more.

However I was appalled at the inaccuracies of one weather system I brought home thinking I was going to use last year. I wont name names but you can probably guess. I managed to land 3 remote temperature sensors with it, so to check them out; I lined them all up together inside on a small table. They all read at least 5 degrees apart after sitting there for 12 hours! Something like 71, 77, 74, but I dont remember for sure. I just couldnt take that and took the whole pile of crap back. Then I saved money for the Davis system which I bought this year, and was impressed that after leaving the console and remote sensors together overnight, the temp and humidity of both matched exactly.
Member Since: May 29, 2005 Posts: 1 Comments: 49
75. cairophoto
1:53 PM GMT on June 05, 2005
well i have had a humidity - temperature digital sensor that was ruined by rain and dust storms and it became inaccurate in only 2 years. temperature was above the real reading by 2 degrees C and humidity was below the real reading by ~10%. I agree that the mercury thermometers are more accurate reliable and durable.
74. CarterLake
8:29 AM CDT on June 05, 2005
Aero, your claims of digital thermometer inaccuarcy are quite interesting. Can you quote any sources for your claims?

Obviously, the automated digital weather station was created to remove the human element from weather measuring. This by far is the single greatest problem in collecting data - i.e. human reads wrong information; human has a life and wants to live it, etc.

Whether the network is 1 or 228, regular calibration checks should eliminate any possible equipment failure or drifting. And meanwhile, such equipment - properly installed - will measure weather data every second of every hour of every day, day in and day out with near perfect accuracy... something a human is just not designed to do.

For the personal weather station owner, the Citizen Weather Observer Program offers a wealth of helpful suggestions (like regularly checking readings with another sensor) and data quality checks (automatically comparing weather stations' against one another).

CWOP Home Page:

Data Quality:

CWOP Weather Guide:

73. aero
4:08 AM GMT on June 03, 2005
I believe in accuracy and use the old
fashioned Official standard Liquid in
Glass Maximum Thermometers, and a
metal 8 inch rain gage along with
snow board. Having worked in the field
of Climatology Managing a Network of
about 228 sites I know how electronic
thermometers can lose their accuracy
over time, usually about 2-4 years and
they are often worthless, sometimes
reading 3 to 4 degrees F. one way or the other or worse. Sometimes the Observer doesn't know that his thermometer is reading 1 or 2 degrees off and the data gets published as an official record of the NWS, effecting
Global warming studies.

With the Official Standard Liquid in glass thermometers it is obvious when they are not accurate. The yellow alcohol in the Minimum thermometer will sometimes seperate when the Instrument shelter vibrates in high winds, and it is very easy to reunite the fluid, but tapping on the metal backing for the
thermometer, holding the bulb in down.

Maximum mercury in glass thermometers
rarely become inaccurate unless the glass is cracked.

Is there a way I could send my accurate data to The Weather underground ?

72. AfterTen
2:57 PM GMT on May 31, 2005

Since I only have the Vantage Pro I only tested with it. The communication specs for the Vantage Pro and Vantage Pro 2 are the same. I've also only used the Serial version of the WeatherLink cable which also works on the Vantage Pro 2 so my software shouldn't have an issue with talking with either the original or 2.

I'm going to order the USB version of the WeatherLink cable to see if I can test with that.

As to the communications, using the serial WeatherLink, I just talk to the console using Davis' published specs.
71. BenFromLI
3:46 PM GMT on May 30, 2005
I have enjoyed observing local obs for a few years. The only thing that is frustrating & that will prevent this from becoming more of an exact science is the inaccuracies of some stations. You can definatley tell when the thermometer sensor is placed directly in sunlight!
Member Since: February 5, 2004 Posts: 0 Comments: 2
70. KevDev
3:08 PM GMT on May 30, 2005
AfterTen and Other Mac Users,

The VantagePro 2 for OS-X uses USB as opposed to a USB-to-Serial adapter. USB is converted to RS-232 inside the VantagePro 2 console itself using a USB to UART bridge chip manufactured by Silicon Labs. The problem I am having relates to communicating with their SLAB-USBtoUART driver. Davis has been of little help, so I left an email with Silicon Labs.

If they can give me an interface protocol to their driver, than I should be able to make a standalone Mac application that polls the VantagePro 2 w/USB and uploads to wunderground.

I am uploading now, but it is a two stage process where I use Davis's WeatherLink software to poll the VantagePro2 and then my software to upload to wunderground. This is fragile at the moment.

AfterTen, How do you poll the VantagePro console? Pehaps I can learn something from what you have done.

69. BrightonMi
4:21 PM GMT on May 29, 2005
No clue when it will be fixed.

I hope soon as I am sure many other people are questioning their readings as well.

68. ralsa
2:58 PM GMT on May 29, 2005
Thanks for the reply. At first I thought my station was losing it's mind and then my software :) I believe you are correct about the DB problem, I having no problem sending data, just sometimes it changes the time the reading was taken and that seems to be across the board with personal stations.

Any idea when it will be fixed?
Member Since: December 6, 2004 Posts: 5 Comments: 0
67. BrightonMi
12:18 PM GMT on May 29, 2005

They are aware of the problem.

Jeff Masters said they are having a problem with routers that is corrupting the data.

It seems to be more of the DB problem than a networking one, but who knows.

66. ralsa
4:18 AM GMT on May 29, 2005
Shaun - Please see my e-mail I sent you. There seems to an issue with many of the Personal Weather Sites posting to Weather Underground. The graphs tell the story...many peaks and dives that are completely unexplained. It seems when information is sent to your server, a time other then when it is sent is put on the delimited comma file. An incident that I caught today posted my 12:00pm reading as 9:00am which gave two 9:00am reading causing my banner to read "No Data" and my graphs to completely wrong. I've noticed this same thing occuring on many of the personal weather sites.
Member Since: December 6, 2004 Posts: 5 Comments: 0
65. BrightonMi
2:35 PM GMT on May 27, 2005
Question for Mac Users:

Can't you run Windows under a Mac?

Wouldnt this allow you to use any Windows based application for uploading?

Or is the serial/USB hardware emulation not supported?

64. AfterTen
2:08 PM GMT on May 26, 2005
I'll be releasing the first "Preview/Beta" of a Macintosh program that collects data from personal weather stations this weekend. (It will work on Windows too but Mac is my target audience since there are plently of PC programs out there)
My Forum Announcements

It works with Davis Vantage Pro (should work with Pro II but I haven't tested that) O.S. WMR968, Davis Wizard and LaCrosse 23XX series. I'll support more stations in the future.

Program will allow you to post data to a personal web site. See...
Here as an example.

It also uploads to WeatherUnderground.
My Vantage Pro
My O.S. WMR968
My LasCrosse 2310 (buggy)
Feel free to ask any questions at my support forum.
63. Richardcrowe
3:48 AM GMT on May 24, 2005
Anybody else had any problems with delivery of replacement parts from Oregon Scientific? My THGR968 module broke and I've tried since November to get another one. I've even written OS on several occasions and got the usual "sorry for the delay" reply. I purchased one of their new big wireless stations and my THGR968 came loose from it's mount, hung upside down, filled with rainwater and froze last November. I'm about ready to throw this thing in the trash and learn not to purchase anymore OS products.

Will anything else work for this? I have no outside temp or humidity without it.

62. snapwater
10:13 PM GMT on May 22, 2005
hi i am using mac os 10.3.9 with weatherlink for the davis vantage pro 2 with the weather envoy (b/c the master consol is not within my apartment) and i was wondering if anybody had any software or scripts that they developed and would be interested in sharing so i can post data to weatherunderground . . .

please, any help or information at all will be highly appreciated as i've invested a lot of money just to get the station online and i've seem to hit a roadblock . . .


61. prairiebuzz
3:01 PM GMT on May 12, 2005
here in north missouri we have had thunderstorms in november.
60. pwmeek
1:10 PM GMT on May 11, 2005
RE: intentional GPS inaccuracy

The SA (Selective Availability) has not been used for several years. Consumer grade GPS receivers get just as acurate information as anything else for the type of receiver used. Now it is true that there are a couple of kinds of signals available from the satellites and most consumer grade GPS only receive the simplest type. Still, I can walk into any good surveyors supply store and buy a GPS that will give me sub-centimeter accuracy (if I have the big-bux required).

Greater elevation inaccuracy is due to the geometry of the satellites rather than any intentional inaccuracy; it is also the case that 50' of altitude error is a lot more annoying than 50' of horizontal error. You can walk over to something 50' away, but if it is 50' over your head, that is something else again.
Member Since: March 26, 2002 Posts: 0 Comments: 17
59. renodb
2:49 AM GMT on May 11, 2005
KevDev, Thanks for you work. I will play around with it a bit. Looks like there are several of us with Mac's looking for a more graceful interface. I also have a Vantage 2

Take care,
58. JAT0
12:37 AM GMT on May 11, 2005

I still seem to be missing data sent to this site. I've done nothing, but it also now seems to occur mainly after 4 pm each day for some time - then clears up.

57. Y2KOTA
5:32 AM GMT on May 10, 2005

Thanks for the info, keeps us Mac users updated Please!
56. BrightonMi
12:12 AM GMT on May 10, 2005

I have added support for Virtual Weather Station Standard Edition to upload to the Weather Underground and CWOP.

If interested:
55. KevDev
3:38 PM GMT on May 09, 2005

I am in the process of writing software that will allow OS-X Macs to upload data to wunderground from a Davis Vantage Pro 2.

It is a little 'clunky' now in that it is a two-step process of using Davis' WeatherLink software to actually get the data from the Vantage Pro 2 console and then my program to upload that data to wunderground.

I'm trying to learn how to poll the Vantage Pro2 myself so I can make a single program to do all the work.

If I get that done, I will gladly make the program freely available so more Mac users can get their weather stations online.

In the mean time, you can play around with the perl scripts that were written for Linux at
I know of one person who is using one of them with a Mac.


54. RussellDOakley
1:20 PM GMT on May 09, 2005
CWOP has a pretty good quality control system in place. If you upload your data to them, you can get your own QC page, and you can check your data quality every day against nearby stations, amatuer and professional. Foe example, here is what mine looks like. (Okay so nobody is perfect. I'm working on it!)

CWOP has also developed an excellent downloadable document that details setting up your station. There is much, much more if you are interested.
53. Y2KOTA
5:56 AM GMT on May 09, 2005
"Is you script available for use? " Not sure what you are refering to, I guess so. I never played around with the scripts.
52. Shaun Tanner , Senior Meteorologist (Admin)
6:27 PM GMT on May 08, 2005
I agree, some stations are position in places that are not good for data collection. When these stations are pointed out, I usually write to the owners to offer help in getting the station in the correct place. Please let me know of any station that seems to be reporting bad data.
51. renodb
4:35 PM GMT on May 08, 2005
Kevdev: I also have a G5 running weatherlink. Is you script available for use?
50. Y2KOTA
6:22 AM GMT on May 08, 2005
I've been thinking about putting up a weather station. Anyone have theres running off of a Mac?
49. Spacemanbob
4:33 AM GMT on May 08, 2005
The only comment I have is this. Just because we all have these weather stations, doesn't mean that they are really reliable. Some of the people in my area keep their heat monitors in direct sunlight thus giving a wrong humidity and heat reading. And depending how high and where you put your wind gauge, you will get vastly different readings than your neighbor. As is the case in my instance. I don't have my wind gauge mounted on top of the house so it doesn't get the right wind direction or speed at all.

Base line here. We all need to make sure our devices are mounted and calibrated to make sure that people that do go to our sites can see them and feel good that they are getting quality information.
48. rgeer68
4:22 PM EDT on May 05, 2005
Link didb't post.

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