Austria Breaks Heat Record. U.S. July Monthly Heat Records

By: Christopher C. Burt , 8:57 PM GMT on August 03, 2013

Austria Breaks Heat Record. U.S. July Monthly Heat Records

Austria broke its national heat record on Saturday (August 3rd) when the temperature peaked at 39.9°C (103.8°F) at Dellach im Drautal in Carinthia State. The previous record was also held by Dellach when it reached 39.7° (103.4°F) on July 27, 1983. The heat wave in Austria will continue this weekend and higher temperatures may be measured Sunday or Monday.



Carinthia is an Austrian state that lies in southern Austria bordering Italy and Slovenia. It is a spectacularly beautiful region as this photo illustrates. Dellach im Drautal is located near the Italian border at 614 m (2,014’) elevation. Photo from Austrian tourism web site.

July monthly heat records for heat set in some U.S. cities

It was the hottest July and calendar month on record for at least 10 cities across the U.S. this past month. Many other sites also broke their records but these 10 are notable for their long POR’s (periods of record). Here is the list:

New Haven, Connecticut: 78.7° (old record 77.4° in July 1876)- unbroken records since 1780

Nantucket, Massachusetts: 72.3° (old record 71.8° in July 1937)-records began in 1886

Providence, Rhode Island: 78.5° (previous record 78.2° in July 1952)-records began in 1880

Hartford, Connecticut: 77.9° (previous record 77.1° in July 1994 and July 2010)-records began in 1885

Medford, Oregon: 78.9°: (old record 77.9° in August 1967)—records began in 1911

Bend, Oregon: 70.2°: (old record 69.4° in July 2003)-records began in 1902

Roseburg, Oregon: 74.6° (ties old record last set in July 1996)-records began in 1877

Salt Lake City, Utah: 84.1° (previous record 84.0° in July 2007)-records began in 1874

Reno, Nevada: 80.2° (previous record 80.0° in July 2005 and also in July 2007)-records began in 1888

Elko, Nevada: 76.8°: (previous record 75.9° in July 1985)-records began in 1888.

Bridgeport, Connecticut also broke its record with a July average of 78.8° besting the 78.4° set in July 1994, but records only go back to 1949 in Bridgeport so it is not quite in the league as the sites listed above. Overall, it was the hottest month on record for the entire state of Connecticut according to the NWS-Boston office, which oversees the weather data for the state. The record warm month in Southern New England was the result of unusually warm nighttime temperatures not exceptionally hot days; there were few extreme maximum temperatures recorded.

New Haven, Connecticut is especially notable since it has an unbroken series of monthly temperature records dating back to 1780, one of the oldest series in the U.S. The Smithsonian Institute published the temperature data for 1780-1872 in their lengthy volume ’World Weather Records: Collected from Official Sources’, Smithsonian Miscellaneous Collections, Vol. 79, published in 1929 then the Signal Service maintained records from 1872-1894, followed by the U.S. Weather Bureau. The data, however, comes from various different sites around the city.

Also of particular interest was the heat on Nantucket Island where urban development certainly could not have played a role—it also indicates the very warm SST’s (sea surface temperatures) measured around the island during the past month. Likewise, Block Island, Rhode Island came within just 0.1° of breaking their record (July averaged 73.7° versus the all-time record of 73.8° set in July 1952), warm SST’s at play again for this site I assume!



Sea surface temperature map composite for the last week of July. Note the 74° temperature from a buoy off Nantucket (the island just south of Cape Cod). The SST’s were averaging 3-4°C (5°-7°F) above normal for the waters around Southern New England. Map from NOAA.

I’ll update the European heat wave on Monday.

Christopher C. Burt
Weather Historian

Reader Comments

Comments will take a few seconds to appear.

Post Your Comments

Please sign in to post comments.

Log In or Join

Not only will you be able to leave comments on this blog, but you'll also have the ability to upload and share your photos in our Wunder Photos section.

Display: 0, 50, 100, 200 Sort: Newest First - Order Posted

Viewing: 25 - 1

Page: 1 — Blog Index

25. WunderAlertBot (Admin)
8:12 PM GMT on August 06, 2013
weatherhistorian has created a new entry.
24. DocNDswamp
6:30 PM GMT on August 06, 2013
Hi Chris,
In reference to the record July warmth regarding New England states of CT, RI, MA it seems likely a result of prevailing regional weather pattern interacting with Gulf Stream warmth, perhaps continuing a trend similar to what was noted in the Woods Hole Oceanographic Institution's report "Scientists Uncover Diversion of Gulf Stream Path in Late 2011, Warmer waters flowed to shelfbreak south of New England"... in line with other studies showing Gulf Stream / AMOC transport changes over past decades, the influence / interaction of both warm and cold ring eddies, and daily discoveries of previously unrecognized shifts and diversions. If interested, reviewing analysis from ESRL (or model archives) helps one assess the likely contributing factors of prevailing winds and ridging strength / position, mean and anomalous values compared to climo.

Out of curiosity, checked and found the 500 mb (and 300 mb) geo height composite anomalies nearly identical with the record July 1952 you highlighted. Some differences looking at ridge position / anomalies at, for example, using 925 mb between the two years -- a stagnant virtually stacked pattern with mid-upper in July 1952, with strongest positive anomaly to the SE of New England in 2013. For July 2013 all of this correlates well with large scale pattern of troughing Cen US / strong westward reaching Atlantic ridge / Bermuda high and SSW vector surface wind anomaly extension into this region, enhancing NNE advection of warm SST Gulf Stream water.

Member Since: December 31, 1969 Posts: Comments:
23. georgevandenberghe
6:13 PM GMT on August 06, 2013
In contrast with the previous few incredible, not to be believed hot years, SST off of the Delmarva Peninsula is slightly below long term means. The extreme warm departures are localized to New England
this time.

Next summer ?????????
Member Since: December 31, 1969 Posts: Comments:
22. Neapolitan
6:23 PM GMT on August 05, 2013
Quoting 17. brian44ky:



Aw come on....when we have a record cold across the globe it will never receive the same attention..........
Dude, your bias is showing. Mr. Burt's blog has always been a fact-based one; he compiles and reports on what's happening in the world of weather. Don't blame him for the fact that heat records are oustripping cool records at an increasing pace.

By the way, Mr. Burt is the author of an excellent book: Extreme Weather: A Guide & Record Book. It's a must-read for anyone who thinks of him- or herself as a lover of extreme weather. (Be warned, however: it contains both heat- and cold-related records, so if you're offended by the former, or if Rush Limbaugh has led you to believe they're part of a socialist plot, you might want to skip it.)
Member Since: December 31, 1969 Posts: Comments:
21. maxcrc
5:36 PM GMT on August 05, 2013
Quoting 17. brian44ky:



Aw come on....when we have a record cold across the globe it will never receive the same attention..........


There have been not a single record cold event anywhere.
South America is experiencing its hottest "winter" ever, except for 2 days in a small part of it, but not a single station in dozens of thousands in the whole Continent have set a record cold.
There have been HUNDREDS much colder waves in the past.
Same thing in Australia, New Zealand and the whole Oceania: the year without winter. Terrible heat waves alloever the Northern Hemisphere.
Member Since: December 31, 1969 Posts: Comments:
20. TimS228
3:02 PM GMT on August 05, 2013
Christopher,

Some of the cities in the list have previous records that have been set since 1990. The differences between these highs and the new ones this year are low. I am curious what the records were prior to those. I have a feeling that the current records are closer to a full degree higher than the pre-1990 highs.
Just curious
Member Since: December 31, 1969 Posts: Comments:
19. Christopher C. Burt , Weather Historian
4:16 AM GMT on August 05, 2013
Quoting 17. brian44ky:



Aw come on....when we have a record cold across the globe it will never receive the same attention..........


"Aw come on"...apparently you completely ignored my response to your previous message: I have regularly blogged about record cold events, not just record heat events.
Member Since: December 31, 1969 Posts: Comments:
18. SteveDa1
3:47 AM GMT on August 05, 2013
.
Member Since: December 31, 1969 Posts: Comments:
17. brian44ky
1:01 AM GMT on August 05, 2013
Quoting 14. SteveDa1:


Aw come on, that is just the US and July... look at what's happening around the world. Record heat across the world being headlined here is almost unprecedented to virtually unprecedented. A cool stretch in the US is nothing. And those are daily cold records, nothing unusual.

Did you read Christopher Burt's comment?



Aw come on....when we have a record cold across the globe it will never receive the same attention..........
Member Since: December 31, 1969 Posts: Comments:
16. bappit
6:34 PM GMT on August 04, 2013
"Also of particular interest was the heat on Nantucket Island where urban development certainly could not have played a role—it also indicates the very warm SST’s (sea surface temperatures) measured around the island during the past month."

Just thinking department: I was wondering if urbanization could reach a saturation level. After so much area is urbanized, there should be less possibility of continued heating of the near surface air (i.e., rise in temperature) versus unurbanized areas.

A few limiting factors to the urban heat island effect on our climate data:
--many urban areas are decreasing in population so increasing urbanization is not a given.
--our temperature reporting network is not dense enough to measure the effects of increased urbanization on the outskirts of cities.
--as ground that can contain water is replaced with concrete, eventually there is little or no soil with water to buffer the temperature left. So more urbanization has no effect on the availability of water to change phase and prevent heating (increase in temperature).
--as the surface air heats, there would be increased tendency to convection to cool the surface (decrease temperature).
--as buildings grow taller the roughness of the surface increases decreasing the intensity of light absorbed per unit area, thereby decreasing the heating of the surface (increase in temperature) making it less effective in heating the surface air.

The hypothesis would be that areas reaching a saturation level of urbanization would then show the same climate signal as unurbanized areas.

This is all just off the top of my head. I have no sources for this, but I'd be very surprised if this issue has not been investigated. I wonder if anyone has a link?
Member Since: December 31, 1969 Posts: Comments:
15. georgevandenberghe
5:09 PM GMT on August 04, 2013
Quoting 7. brian44ky:
What about the record lows across Minnesota??.... frost in July and upper 30' s in August!!!! Coolest Summer in upper Minnesota in decades.(this after a late ice out)... The Southern US..ie Atlanta.. enjoying a unbelievable cool summer. But all you want to mention is the heat!!!!!


The last below normal summer (JJA) month in the Washington DC area was July 2009. Since then the 12 following summer months (August 1979 and all three months of 2010-2012 and JJ of 2013) have been well above normal

However July was less brutal than the previous three and so far August has been pleasant. I would charactarize this DC summer as like the typical ones of the past 140 years and not like the grossly atypical ones of 2010-2012.

In this area small differences in summer temperature make big differences in what we can grow through summer.
Member Since: December 31, 1969 Posts: Comments:
14. SteveDa1
2:48 PM GMT on August 04, 2013
Quoting 12. brian44ky:
For July in the US there were 10 times the amount of cold temperature records compared to warm temperature records....512 cold records compared to 49 warm......


Aw come on, that is just the US and July... look at what's happening around the world. Record heat across the world being headlined here is almost unprecedented to virtually unprecedented. A cool stretch in the US is nothing. And those are daily cold records, nothing unusual.

Did you read Christopher Burt's comment?
Member Since: December 31, 1969 Posts: Comments:
13. bell32ndst
2:44 PM GMT on August 04, 2013
Isn't it wonderful to see all these changes occurring! How boring the weather would be if it was always the same.

The weather this year is the same as it was last year, and the year before, and the year before, and ... Yawn. Snooze.

Instead we get, records here, records there, no one knows what will happen next; models wrong here, models wrong there, no one knows which models to trust. Exciting!

We're performing an experiment with the human race. How far can we multiply before we destroy our environment, and thus ourselves? How many people can the earth support? And at what standard of living? Seven and a half billion and counting.

Adapt or die! Bring it on!

Harlan Ellison said "Two things are infinite: the universe and human stupidity; and I'm not sure about the the universe."

No, no, we must not limit human reproduction! We must breed to the utter limits of our capacity! It's written in a book somewhere. LOL.

Why do I focus on population? If the earth had 2 to 3 billion people, or less, none of these crises would exist. We missed our chance when cheap effective birth control became available 50 years ago. But it's a great experiment. We should put satellites describing the results into orbit around the earth when we know the outcome. So any intelligent life that later evolves here will have our experience as a lesson.

:-^
Member Since: December 31, 1969 Posts: Comments:
12. brian44ky
1:07 PM GMT on August 04, 2013
For July in the US there were 10 times the amount of cold temperature records compared to warm temperature records....512 cold records compared to 49 warm......
Member Since: December 31, 1969 Posts: Comments:
11. barbamz
11:14 AM GMT on August 04, 2013
More from the current heatwave in China:

China hit by unprecedented heatwave
Press TV, August 4 (with a more extensive video)

Southern China's heatwave is grinding on. The hot weather began in several eastern and southern areas in early July. Since then, nineteen provinces covering about a third of the country have endured 20 or more unbroken days of scorching heat.

43 cities and counties have seen temperatures in excess of 40 degrees Celsius. In Shanghai, the 41 degrees recorded on July 26 was the highest there for at least 140 years.

In Shanghai alone, at least ten people have died of heat stroke. The authorities there have been advising people to avoid outdoor activities whenever possible and take measures necessary to stay cool. Likewise in neighboring Zhejiang where temperatures have reached 43 degrees.

Elsewhere in Zhejiang, a week of non-stop heat caused the glass panes in road barriers to crack, and the cement surface of roads themselves to warp upwards by as much as 19 centimeters. In the village of Shitan, a car left parked under the sun spontaneously burst into flames. Electrical failure brought on by the heat is suspected to have been the cause.

This week China's meteorological administration issued its first-ever emergency level-two nationwide heat alert. High temperatures, it warned, could continue until August 8.



Shanghai cracks down on unauthorised weather forecasts as heatwave continues
August 3, South China Morning Post
China's sweltering heatwave not expected to rise above 40 degrees, despite the claims of faulty forecasts.

As China’s scorching heat wave continues and temperatures soar, the government has started cracking down on false weather reports.

The Shanghai Meteorological Bureau told the Shanghai Evening Post that unauthorised and exaggerated weather reports, which have increasingly been created and shared online by netizens, were generally faulty, especially when they predicted that temperatures would rise far beyond 40 degrees.

These unauthorised reports were largely based only on numerical models and calculated dates, and rarely took into account important factors that might influence a day’s heat, including clouds and wind direction, Shanghai Meteorological Bureau chief service officer Man Liping said.

The creation and distribution of unauthorised weather forecasts is punishable with a warning or fines of up to 50,000 yuan, (HK$ 63,253) the Bureau reportedly confirmed.

A chief forecaster for the Shanghai Meteorological Bureau, Liang Bo, said that while current weather forecasts by the Bureau were far from perfect, there was little chance that temperatures would rise far beyond 41 degrees within the next four to six days.

The heatwave has proven to be one of China’s hottest since 1873. Shanghai’s temperatures hit a record 40.6 degrees on July 26, and the intense weather has already claimed the lives of ten Shanghai residents who died from heat stroke. Most recently, droughts resulting from the heat have wrecked counties and cities in Hunan, as rainfall levels fell 30 per cent below their normal levels.

Residents have crowded into air conditioned supermarkets and wave pools in an effort to beat the heat, which was proven by a viral internet video as hot enough to fry meat placed on the sidewalk.



Member Since: December 31, 1969 Posts: Comments:
10. Christopher C. Burt , Weather Historian
2:29 AM GMT on August 04, 2013
Quoting 7. brian44ky:
What about the record lows across Minnesota??.... frost in July and upper 30' s in August!!!! Coolest Summer in upper Minnesota in decades.(this after a late ice out)... The Southern US..ie Atlanta.. enjoying a unbelievable cool summer. But all you want to mention is the heat!!!!!



I did blog about this last week (see blog for July 29th and scroll to bottom). Some very cool temperatures in the Midwest and Southeast but nothing that approached significant record-breaking territory aside from some record low maximums on a few days. It has not been a record cold July anywhere in the U.S. or the world for that matter. Of course, I would blog about such if it actually occurred as I did in my blog last weekend about the severe cold in South America. I am not going to devote blogs to 'cool weather spells' unless they are record-breaking in a significant fashion, as the heat records have been in Alaska, Siberia, Europe, China, and parts of the continental U.S.
Member Since: December 31, 1969 Posts: Comments:
8. Patrap
2:19 AM GMT on August 04, 2013
When we see departure in both Heat and cold with the changing Looping Northern Jet Stream,and Climate Change is the cause of that so its not just Hot vs cold records, its the wild swings in the Mean that's the concern.

Climate Outlook for 2013 with Jeff Masters and Others

Member Since: December 31, 1969 Posts: Comments:
7. brian44ky
2:03 AM GMT on August 04, 2013
What about the record lows across Minnesota??.... frost in July and upper 30' s in August!!!! Coolest Summer in upper Minnesota in decades.(this after a late ice out)... The Southern US..ie Atlanta.. enjoying a unbelievable cool summer. But all you want to mention is the heat!!!!!
Member Since: December 31, 1969 Posts: Comments:
6. Patrap
1:48 AM GMT on August 04, 2013
Not to stray too far off topic, but a new one about Nuclear as well.



Big Nuke Company Decides Renewables Are a Better Bet in the US

The world's largest operator of nuclear power plants is dumping its stake in American reactors, turning its focus instead to wind and solar power.

French utility company EDF announced this week that it will sell its stake in Constellation Energy Nuclear Group (CENG), which operates five nuclear reactors in New York and Maryland.

EDF cited cheap power produced by fracked natural gas as the big reason why it's abandoning its American nuclear facilities. But the company said it will now focus its American business strategy not on fossil fuels but on renewable energy.

The French utility's pullout comes as nuclear power plants shutter in California, Florida, and Wisconsin. The price of operating nuclear power plants has risen as the plants have grown older. Hopes of nuclear power being "too cheap to meter" were long ago dashed. Mark Cooper, a senior fellow at the Vermont Law School's Institute for Energy and the Environment, recently published a 40-page obituary [PDF] for the nuclear industry. From an article published a couple of weeks ago in The Plain Dealer:

Cooper, who thinks nuclear energy's cost overruns and frequent shutdowns have always made it more expensive than it appears, recommends that the industry develop an orderly closing plan over the next few years, avoiding the rate chaos that unplanned closings might create.

"In 2013, more (nuclear) capacity retired early than in any year of the U.S. commercial nuclear sector," he said in a press briefing. "In recent months, four reactors have been closed in early retirement, five major up-rates (increases in generating capacity) were cancelled.

"The bottom line is that the tough times the nuclear power industry faces today are only going to get tougher. Over three dozen reactors in almost two dozen states are at risk of early retirement. And a dozen face the greatest risk of being shut down," he said.
Member Since: December 31, 1969 Posts: Comments:
5. Christopher C. Burt , Weather Historian
12:59 AM GMT on August 04, 2013
Quoting 2. ISMBAF:
The week of July 22-26,the Pilgrim Nuclear Power Plant in Plymouth, MA was very close to a NRC mandated shutdown due to inlet water (the ocean, used to cool the reactor) temps exceeding 75F. It was a scenario that was simply never considered a possibility when the operating license was issued. It was front page news in the Cape Cod Times, and it felt very strange to read it!


Fascinating! Thanks for this. I read the article in the 'Cape Cod Times' and it said this was the first time in the plant's 40-year history that the sea temperature had been this warm (Cape Cod Bay actually). They also said the plant has requested that the NRC raise its water temperature threshold for operation to 80 instead of 75.
Member Since: December 31, 1969 Posts: Comments:
4. Soap2
12:02 AM GMT on August 04, 2013
Yes!! I'm not the only one who noticed the Florida-like temperatures of the ocean water off the coast of Massachusetts. I know it's only one month, but I wonder if this is the beginning of a long-term trend that will last into winter and make a much more noticeable change to the climate.
Member Since: December 31, 1969 Posts: Comments:
3. nigel20
11:01 PM GMT on August 03, 2013
Thanks Christopher!
Member Since: December 31, 1969 Posts: Comments:
2. ISMBAF
9:15 PM GMT on August 03, 2013
The week of July 22-26,the Pilgrim Nuclear Power Plant in Plymouth, MA was very close to a NRC mandated shutdown due to inlet water (the ocean, used to cool the reactor) temps exceeding 75F. It was a scenario that was simply never considered a possibility when the operating license was issued. It was front page news in the Cape Cod Times, and it felt very strange to read it!
Member Since: December 31, 1969 Posts: Comments:
1. barbamz
9:08 PM GMT on August 03, 2013
Thanks a lot, Christopher, for covering these heatwave incidents in the northern hemisphere in this blog and the previous one. I've just realized it (WU should develop a new permanet side bar with updates from their featured metereologists!!!), as I've tried to cover the developments on my own blog.
And well, Dellach in Austria brings back memories to me: when I was a child our family spend several vacations in an accomodation of a mountain farmer nearby (year 1969 and following years) ...
Member Since: December 31, 1969 Posts: Comments:

Viewing: 25 - 1

Page: 1 — Blog Index

Top of Page
Ad Blocker Enabled

Weather Extremes

About weatherhistorian

Christopher C. Burt is the author of 'Extreme Weather; A Guide and Record Book'. He studied meteorology at the Univ. of Wisconsin-Madison.