Karns City, PA

8:46 AM EDT on May 24, 2013 (GMT -0400)
Elev: 1270 ft
Lon: 79.7° W
Lat: 41.0° N
Source
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Tropical Weather: Invest 91E (East Pacific)
News
May 23, 2013
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May 23, 2013
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May 23, 2013
See the stories of just one block of families affected by the massive Oklahoma tornado.
May 23, 2013
Dollars-and-cents reality has resulted in a patchwork of protection for schools in tornado-prone areas sometimes with tragic results.
May 22, 2013
In the wake of the devastating tornado that struck Moore, Okla., teachers and educators emerge as heroes.
May 23, 2013
The Moore tornado may have been among the costliest in U.S. history. We count down the top 5 prior to this tornado.
May 22, 2013
The long, tornadic history of the Oklahoma City metro area.
May 22, 2013
Moore, Okla. tornado survivor Bernie Morris recalls the chaos and devastation of the May 20 twister that struck the area.
May 23, 2013
Officials say the focus is now on cleanup in the wake of the deadly EF5 tornado in Moore, Okla.
May 22, 2013
When a rare EF5 tornado hit Moore, Okla., on Monday afternoon, the citys medical professionals ran toward the destruction not away from it.
May 22, 2013
For survivors of Mondays devastating tornado that killed at least 24 and injured 120 more in suburban Oklahoma, the health threat might not end with the storm.
May 23, 2013
More flooding became a nuisance in North Dakota, creating worries of a possible dam break.
May 22, 2013
Two years after the EF5 tornado wrecked St. Johns Regional Medical Center in Joplin, construction continues on a new, sturdier hospital.
May 22, 2013
Photos reveal the terror after an EF5 tornado slammed Joplin in May 2011.
May 23, 2013
The Jersey Shore has made a remarkable comeback after being devastated by Hurricane Sandy. Now, it's ready to welcome tourists back to its shores.
May 23, 2013
Interactive map shows survey results from the National Weather Service.
May 22, 2013
With an ominous storm approaching, parents in Moore, Okla. had a heart-breaking choice to make:
May 22, 2013
The possibility that one child was left in the rubble of Plaza Towers Elementary School kept rescue crews working to sift through debris late Tuesday night.
May 22, 2013
Top lawmakers and officials said Tuesday that the federal government has plenty of money on hand to pay for recovery efforts in the wake of the devastating tornado that struck Oklahoma.
May 21, 2013
Students and parents recounted stories Tuesday of brave teachers who sheltered their pupils, in some cases by herding them into a closet and a restroom amid the fear and panic.
Weather Summary
Weather Underground Forecast for Friday, May 24, 2013.

Showers and thunderstorms will move into the Plains, while also continuing across the East Coast on Friday. A low pressure system over the Rocky Mountains will persist on its eastward track and move into the Plains. Flow around this system will create northward flow, pulling abundant moisture and energy in from the Gulf of Mexico. This will allow for scattered showers and thunderstorms to develop across the Southern Plains again on Friday, spreading northward through the Central and Northern Plains. There is a slight chance that these storms will turn severe across northeastern Colorado, into western Kansas and Nebraska. Large hail and strong winds are likely in these areas, with possibly a tornado or two.

Meanwhile in the East, a trough of low pressure and associated cold front will slowly move eastward and offshore the East Coast on Friday. This system will allow for showers and thunderstorms to persist from the Mid-Atlantic states through Maine. Severe thunderstorms are not likely in these areas, but periods of heavy rainfall and strong winds will persist as this system lingers over the Northeast through Friday night.

Out West, an area of low pressure continues spinning over the Pacific Northwest, maintaining onshore flow. This will bring more rain showers to Oregon and Washington, with snow showers possible at highest elevations.
Weather Underground Forecast for Friday, May 24, 2013.

Showers and thunderstorms will move into the Plains, while also continuing across the East Coast on Friday. A low pressure system over the Rocky Mountains will persist on its eastward track and move into the Plains. Flow around this system will create northward flow, pulling abundant moisture and energy in from the Gulf of Mexico. This will allow for scattered showers and thunderstorms to develop across the Southern Plains again on Friday, spreading northward through the Central and Northern Plains. There is a slight chance that these storms will turn severe across northeastern Colorado, into western Kansas and Nebraska. Large hail and strong winds are likely in these areas, with possibly a tornado or two.

Meanwhile in the East, a trough of low pressure and associated cold front will slowly move eastward and offshore the East Coast on Friday. This system will allow for showers and thunderstorms to persist from the Mid-Atlantic states through Maine. Severe thunderstorms are not likely in these areas, but periods of heavy rainfall and strong winds will persist as this system lingers over the Northeast through Friday night.

Out West, an area of low pressure continues spinning over the Pacific Northwest, maintaining onshore flow. This will bring more rain showers to Oregon and Washington, with snow showers possible at highest elevations.

Karns City Weather at a Glance

Updated 8:46 AM EDT
Elevation
1365 ft
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Now
Overcast
Overcast
Temperature
40.0 °F
Feels Like 40 °F
Wind(mph)
1.8
Sunrise / Set
5:53 AM
8:38 PM
Moon
Waxing Gibbous
Today
Rain Showers 55 °F
Rain Showers
20% chance of precipitation
Tonight
Clear 34 °F
Clear
Tomorrow
Clear 64 | 34 °F
Clear
Sunday
Partly Cloudy 68 | 39 °F
Partly Cloudy
Monday
Partly Cloudy 73 | 43 °F
Partly Cloudy
Tuesday
Chance of Rain 77 | 55 °F
Chance of Rain
40% chance of precipitation
Today is forecast to be Much Cooler than yesterday.
Conditions
Pressure
30.13 in
Visibility
10.0 miles
Clouds
Mostly Cloudy 1000 ft
Overcast 1600 ft
Moisture
Humidity
92%
Rainfall
0.00 in
Snow Depth
Not available.
METAR
METAR KBTP 241235Z AUTO 34004G16KT 10SM BKN010 OVC016 04/02 A3013 RMK AO1
Don't speak METAR? Read our FAQ.
Weather Radio
Temperature
Windchill
40 °F
Dew Point
38 °F
Wind
Speed / Dir
1.8 mph from NNE
Wind Gust
10.7 mph
Health
1 out of 16
Pollen
7.30 out of 12
Pollen Forecast
Ozone
Good
PM2.5
Good
Flu Activity
Sporadic
View Flu Map
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Source: BestForecast
Descriptive Forecast
Friday
partlycloudy Partly cloudy with rain showers. High of 55F. Breezy. Winds from the NNW at 15 to 20 mph. Chance of rain 20%.
Friday Night
nt_clear Clear. Low of 34F. Winds from the NW at 5 to 15 mph.
Saturday
clear Clear. High of 64F. Breezy. Winds from the NNW at 10 to 20 mph.
Saturday Night
nt_clear Partly cloudy. Fog overnight. Low of 34F. Winds from the NW at 5 to 10 mph.
Sunday
partlycloudy Clear. High of 68F. Winds from the NW at 10 to 15 mph.
Sunday Night
nt_clear Clear. Low of 39F. Winds from the NW at 5 to 10 mph.
Monday
partlycloudy Partly cloudy in the morning, then overcast. High of 73F. Winds less than 5 mph.
Monday Night
nt_partlycloudy Partly cloudy. Low of 43F. Winds less than 5 mph.
Tuesday
chancerain Clear with a chance of rain. High of 77F. Winds from the South at 5 to 10 mph. Chance of rain 40%.
Tuesday Night
nt_partlycloudy Partly cloudy with a chance of a thunderstorm. Low of 55F. Winds from the SW at 5 to 10 mph. Chance of rain 20%.
Wednesday
mostlycloudy Mostly cloudy. High of 84F. Winds from the SW at 10 to 15 mph.
Wednesday Night
nt_mostlycloudy Mostly cloudy. Fog overnight. Low of 61F. Winds from the WSW at 5 to 10 mph.
Thursday
partlycloudy Partly cloudy. High of 86F. Winds from the WSW at 10 to 15 mph.
Thursday Night
nt_mostlycloudy Mostly cloudy. Low of 63F. Winds from the SW at 5 to 10 mph.
Friday
partlycloudy Partly cloudy. High of 90F. Winds from the SW at 5 to 10 mph.
Friday Night
nt_chancetstorms Partly cloudy with a chance of a thunderstorm. Low of 66F. Winds from the SSW at 5 to 10 mph. Chance of rain 50% with rainfall amounts near 0.2 in. possible.
Saturday
chancetstorms Partly cloudy with a chance of a thunderstorm. High of 93F. Winds from the SW at 5 to 10 mph. Chance of rain 50%.
Saturday Night
nt_chancetstorms Clear with a chance of a thunderstorm. Low of 66F. Winds from the SW at 5 to 10 mph. Chance of rain 40%.
Sunday
clear Clear with a chance of a thunderstorm. High of 95F. Winds from the SW at 5 to 10 mph. Chance of rain 20%.
Sunday Night
nt_clear Clear. Low of 64F. Winds less than 5 mph.
Monday
clear Clear. High of 91F. Winds less than 5 mph.
Monday Night
nt_clear Clear. Low of 64F. Winds less than 5 mph.
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Nowcast
Freeze warning in effect from 3 am to 8 am EDT Saturday...

Weather Forecast for Karns City PA

View Calendar 10-Day Forecast for station KPABUTLE5

Friday, 24
Rain Showers
55 | 34 °F
Rain Showers
Chance of
Precipitation
20%
Saturday, 25
Clear
64 | 34 °F
Clear
Chance of
Precipitation
0%
Sunday, 26
Partly Cloudy
68 | 39 °F
Partly Cloudy
Chance of
Precipitation
0%
Monday, 27
Partly Cloudy
73 | 43 °F
Partly Cloudy
Chance of
Precipitation
0%
Tuesday, 28
Chance of Rain
77 | 55 °F
Chance of Rain
Chance of
Precipitation
40%
Wednesday, 29
Mostly Cloudy
84 | 61 °F
Mostly Cloudy
Chance of
Precipitation
0%
Thursday, 30
Partly Cloudy
86 | 63 °F
Partly Cloudy
Chance of
Precipitation
0%
Friday, 31
Partly Cloudy
90 | 66 °F
Partly Cloudy
Chance of
Precipitation
0%
Saturday, 1
Chance of a Thunderstorm
93 | 66 °F
Chance of T-storms
Chance of
Precipitation
50%
Sunday, 2
Chance of a Thunderstorm
95 | 64 °F
Chance of a Thunderstorm
Chance of
Precipitation
20%
Source: BestForecast at 4:04 AM EDT on May 24, 2013
Descriptive Forecast
Friday
partlycloudy Partly cloudy with rain showers. High of 55F. Breezy. Winds from the NNW at 15 to 20 mph. Chance of rain 20%.
Friday Night
nt_clear Clear. Low of 34F. Winds from the NW at 5 to 15 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 42 | 42 47 | 37 53 | 33 44 | 32
Wind 12 mph NNW 16 mph NNW 15 mph NNW 11 mph NW
Humidity 96% 67% 47% 64%
Chance of Precip. 60% 10% 10% 0%
Cloud Cover 92% 71% 29% 10%
Conditions Rain Showers Mostly Cloudy Partly Cloudy Clear
Sunrise & Sunset
5:53 AM
8:38 PM
The quality of the forecasted high temperature for this day is good. MaxT RMSE [1.95], Average RMSE [1.91]
The National Weather Service forecast quality is good. MaxT RMSE [1.98], Average RMSE [2.60] : Use NWS
Source: BestForecast at 4:04 AM EDT on May 24, 2013
Descriptive Forecast
Saturday
clear Clear. High of 64F. Breezy. Winds from the NNW at 10 to 20 mph.
Saturday Night
nt_clear Partly cloudy. Fog overnight. Low of 34F. Winds from the NW at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 37 | 31 58 | 33 61 | 33 44 | 34
Wind 7 mph NW 15 mph NNW 13 mph NNW 6 mph NW
Humidity 82% 37% 33% 67%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 6% 13% 14% 17%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:52 AM
8:39 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [2.83], Average RMSE [1.66]
The National Weather Service forecast quality is fair. MaxT RMSE [2.91], Average RMSE [2.09] : Use NWS
Source: BestForecast at 4:04 AM EDT on May 24, 2013
Descriptive Forecast
Sunday
partlycloudy Clear. High of 68F. Winds from the NW at 10 to 15 mph.
Sunday Night
nt_clear Clear. Low of 39F. Winds from the NW at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 38 | 35 60 | 36 63 | 36 50 | 33
Wind 5 mph NNW 14 mph NW 12 mph NW 4 mph NNW
Humidity 88% 41% 35% 51%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 20% 21% 19% 0%
Conditions Fog Clear Clear Clear
Sunrise & Sunset
5:52 AM
8:40 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [2.68], Average RMSE [1.62]
The National Weather Service forecast quality is poor. MaxT RMSE [3.69], Average RMSE [2.92] : Use NWS
Source: BestForecast at 4:04 AM EDT on May 24, 2013
Descriptive Forecast
Monday
partlycloudy Partly cloudy in the morning, then overcast. High of 73F. Winds less than 5 mph.
Monday Night
nt_partlycloudy Partly cloudy. Low of 43F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 45 | 30 70 | 41 69 | 43 57 | 40
Wind 2 mph NNW 3 mph WSW 5 mph SW 4 mph SW
Humidity 57% 35% 39% 55%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 0% 0% 97% 3%
Conditions Clear Clear Overcast Clear
Sunrise & Sunset
5:51 AM
8:41 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [3.66], Average RMSE [2.77]
The National Weather Service forecast quality is poor. MaxT RMSE [3.96], Average RMSE [3.02] : Use NWS
Source: BestForecast at 4:04 AM EDT on May 24, 2013
Descriptive Forecast
Tuesday
chancerain Clear with a chance of rain. High of 77F. Winds from the South at 5 to 10 mph. Chance of rain 40%.
Tuesday Night
nt_partlycloudy Partly cloudy with a chance of a thunderstorm. Low of 55F. Winds from the SW at 5 to 10 mph. Chance of rain 20%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 47 | 42 69 | 56 76 | 61 63 | 56
Wind 4 mph SE 5 mph SSE 6 mph SW 6 mph SW
Humidity 82% 64% 61% 78%
Chance of Precip. 0% 20% 20% 10%
Cloud Cover 0% 0% 0% 67%
Conditions Clear Chance of Rain Chance of Rain Mostly Cloudy
Sunrise & Sunset
5:50 AM
8:41 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [3.59], Average RMSE [2.69]
The National Weather Service forecast quality is poor. MaxT RMSE [4.25], Average RMSE [3.49] : Use NWS
Source: BestForecast at 4:04 AM EDT on May 24, 2013
Descriptive Forecast
Wednesday
mostlycloudy Mostly cloudy. High of 84F. Winds from the SW at 10 to 15 mph.
Wednesday Night
nt_mostlycloudy Mostly cloudy. Fog overnight. Low of 61F. Winds from the WSW at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 56 | 56 74 | 55 78 | 57 69 | 61
Wind 7 mph SW 13 mph SW 11 mph WSW 7 mph WSW
Humidity 96% 52% 50% 72%
Chance of Precip. 10% 0% 0% 0%
Cloud Cover 95% 88% 80% 81%
Conditions Overcast Mostly Cloudy Mostly Cloudy Mostly Cloudy
Sunrise & Sunset
5:50 AM
8:42 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [5.00], Average RMSE [2.77]
The National Weather Service forecast quality is poor. MaxT RMSE [4.73], Average RMSE [3.73] : Use NWS
Source: BestForecast at 4:04 AM EDT on May 24, 2013
Descriptive Forecast
Thursday
partlycloudy Partly cloudy. High of 86F. Winds from the WSW at 10 to 15 mph.
Thursday Night
nt_mostlycloudy Mostly cloudy. Low of 63F. Winds from the SW at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 64 | 62 80 | 62 79 | 63 71 | 63
Wind 7 mph SW 11 mph West 9 mph WSW 5 mph WSW
Humidity 92% 52% 59% 75%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 87% 68% 50% 63%
Conditions Fog Mostly Cloudy Partly Cloudy Partly Cloudy
Sunrise & Sunset
5:49 AM
8:43 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [6.11], Average RMSE [4.06]
The National Weather Service forecast quality is poor. MaxT RMSE [5.38], Average RMSE [4.27] : Use NWS
Source: BestForecast at 4:04 AM EDT on May 24, 2013
Descriptive Forecast
Friday
partlycloudy Partly cloudy. High of 90F. Winds from the SW at 5 to 10 mph.
Friday Night
nt_chancetstorms Partly cloudy with a chance of a thunderstorm. Low of 66F. Winds from the SSW at 5 to 10 mph. Chance of rain 50% with rainfall amounts near 0.2 in. possible.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 64 | 61 82 | 62 89 | 63 73 | 64
Wind 6 mph SSW 6 mph SW 4 mph SW 5 mph SSW
Humidity 91% 49% 43% 72%
Chance of Precip. 0% 0% 0% 10%
Cloud Cover 80% 60% 44% 36%
Conditions Mostly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy
Sunrise & Sunset
5:49 AM
8:44 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [6.01], Average RMSE [5.21]
Source: BestForecast at 4:04 AM EDT on May 24, 2013
Descriptive Forecast
Saturday
chancetstorms Partly cloudy with a chance of a thunderstorm. High of 93F. Winds from the SW at 5 to 10 mph. Chance of rain 50%.
Saturday Night
nt_chancetstorms Clear with a chance of a thunderstorm. Low of 66F. Winds from the SW at 5 to 10 mph. Chance of rain 40%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 71 | 64 88 | 66 91 | 69 73 | 65
Wind 6 mph SSW 7 mph SW 5 mph SW 5 mph SW
Humidity 80% 48% 47% 73%
Chance of Precip. 10% 10% 10% 10%
Cloud Cover 37% 44% 58% %
Conditions Partly Cloudy Partly Cloudy Partly Cloudy Clear
Sunrise & Sunset
5:48 AM
8:44 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [5.97], Average RMSE [4.88]
Source: BestForecast at 4:04 AM EDT on May 24, 2013
Descriptive Forecast
Sunday
clear Clear with a chance of a thunderstorm. High of 95F. Winds from the SW at 5 to 10 mph. Chance of rain 20%.
Sunday Night
nt_clear Clear. Low of 64F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 70 | 58 88 | 66 91 | 69 73 | -9998
Wind 5 mph SSW 7 mph SW 5 mph SW 2 mph SW
Humidity 63% 48% 47% -9998%
Chance of Precip. 10% 10% 10% 0%
Cloud Cover % 44% 58% %
Conditions Clear Partly Cloudy Partly Cloudy Clear
Sunrise & Sunset
5:48 AM
8:45 PM
Source: BestForecast at 4:04 AM EDT on May 24, 2013
Descriptive Forecast
Monday
clear Clear. High of 91F. Winds less than 5 mph.
Monday Night
nt_clear Clear. Low of 64F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 70 | 58 82 | 53 89 | 56 72 | 55
Wind 5 mph SSW 2 mph SW 1 mph West 0 mph East
Humidity 63% 35% 32% 59%
Chance of Precip. 10% 0% 0% 0%
Cloud Cover % % % %
Conditions Clear Clear Clear Clear
Sunrise & Sunset
Sun does not rise
Nearby
History & Almanac
May 24, 2013 Max Temp Min Temp
Normal (KBTP) 66 °F 47 °F
Record (KBTP) 86 °F (1977) 37 °F (1971)
Yesterday 74.9 °F 47.3 °F
Choose a date
Earthquake Activity
City Distance Mag. Time & Date
No recent earthquake activity has been reported nearby.
Minimum magnitude displayed is 2.5.
Air Quality
  Air Quality AQ Index Pollutant
Yesterday Good
OZONE
Yesterday Good
PM2.5
Current Good
PM2.5
Current Good
OZONE
Friday Good
PM2.5
Friday Good
OZONE
Saturday Good
PM2.5
Saturday Good
OZONE
Astronomy
May. 24, 2013 Rise Set
Actual Time 5:53 AM EDT 8:38 PM EDT
Civil Twilight 5:21 AM EDT 9:10 PM EDT
Nautical Twilight 4:40 AM EDT 9:51 PM EDT
Astronomical Twilight 3:54 AM EDT 10:37 PM EDT
Moon 8:18 PM EDT 5:24 AM EDT
Length Of Visible Light 15h 49m
Length of Day
14h 45m
Tomorrow will be 1m 32s longer.
Waxing Gibbous, 99% of the Moon is Illuminated
Today
Waxing Gibbous
May 25
Full
May 31
Last Quarter
Jun 8
New
Jun 16
First Quarter
Today's Extremes
State Highs State Lows
66 °F
Philadelphia
64 °F
Middletown
64 °F
Reading
37 °F
Bradford
37 °F
Johnstown
37 °F
Franklin
37 °F
Meadville
39 °F
Butler
Snow Depth
Station Depth Elevation
No new snow has been reported.
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Moon rising
Osprey & Escort
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1,614,477 photos uploaded!
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Travel & Activities
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Aviation
City Temp. Conditions Updated
Butler 39 °F Overcast 8:35 AM EDT
Franklin 39 °F Overcast 8:35 AM EDT
New Castle 41 °F Overcast 7:56 AM EDT
Beaver Falls 41 °F Overcast 7:47 AM EDT
Flight To ETA Status
No flights were found.
Flight Tracker by FlightAware FlightAware
Type Condition
Flight Rule: IFR (KBTP)
Wind Speed: 4.0 kts.
Wind Dir: 23° (NNE)
Ceiling: 1000 ft

METAR KBTP 241235Z AUTO 34004G16KT 10SM BKN010 OVC016 04/02 A3013 RMK AO1

Nearby Events
Event Date Forecast
No events within 10 mi of location. View all events.
Event data courtesy eviesays.com
Videos
Year In Weather 2012

Watch the nearly year-long satellite animation as Weather Underground calls out the most significant weather events of the past year, including Superstorm Sandy and Hurricane Isaac.

Weather Stations
Station Location Temp. Windchill Dew Point Humidity Wind Precipitation Elevation Updated Type Website
HADS ALLEGHENY RIVER AT PARKER PA, Parker, PA 43 °F 43 °F - - North  at  - 0.00 in / hr 879 ft 8:00 AM EDT MADIS
Willow Run, Butler, PA 40.0 °F 40 °F 38 °F 92% NNE  at  1.8 mph 0.00 in / hr 1365 ft 8:46 AM EDT Rapid Fire  
Clearview Mall Vicinity, Butler, PA 40.3 °F 40 °F 37 °F 87% NW  at  2.6 mph 0.00 in / hr 1265 ft 8:46 AM EDT Rapid Fire  
Kennerdell, Kennerdell, PA 39.9 °F 36 °F 35 °F 84% WSW  at  4.9 mph 0.00 in / hr 1394 ft 8:46 AM EDT Rapid Fire  
Penn Twp, Butler, PA 40.0 °F 40 °F 37 °F 90% SSE  at  1.8 mph 0.00 in / hr 1240 ft 8:46 AM EDT Rapid Fire  
Renfrew, PA 40.0 °F 40 °F 38 °F 91% North  at  3.0 mph 0.00 in / hr 1069 ft 8:40 AM EDT Normal  
APRSWXNET Renfrew PA , Connoquenessing, PA 39 °F 36 °F 38 °F 95% North  at  4 mph 0.00 in / hr 1206 ft 8:18 AM EDT MADIS
Clarion, PA 38.9 °F 39 °F 32 °F 75% WNW  at  0.0 mph 0.00 in / hr 1150 ft 8:45 AM EDT Normal  
RAWS MORAINE STATE PARK PA, Prospect, PA 40 °F 36 °F 37 °F 89% NNW  at  5 mph 0.00 in / hr 1220 ft 7:28 AM EDT MADIS
Clarion, PA 41.0 °F 41 °F 32 °F 70% North  at  0.0 mph 0.00 in / hr 1475 ft 8:46 AM EDT Rapid Fire
Grove City, Grove City, PA 41.8 °F 42 °F 39 °F 91% NW  at  3.0 mph 0.00 in / hr 1250 ft 8:46 AM EDT Rapid Fire
Fawn Twp., Natrona Heights, PA 41.9 °F 38 °F 39 °F 90% NNW  at  6.0 mph 0.00 in / hr 1096 ft 8:46 AM EDT Rapid Fire  
Valencia, PA 40.2 °F 38 °F 38 °F 91% SW  at  4.0 mph 0.00 in / hr 1220 ft 8:40 AM EDT Normal
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Freeze Warning
Mobile & Email Alerts Statement as of 3:41 AM EDT on May 24, 2013

... Freeze warning in effect from 3 am to 8 am EDT Saturday...

The National Weather Service in Pittsburgh has issued a freeze
warning... which is in effect from 3 am to 8 am EDT Saturday.

* Temperatures... 30 to 32.

* Impacts... unprotected outdoor plants would likely be damaged or
killed.

Precautionary/preparedness actions...

A freeze warning means sub-freezing temperatures are imminent or
highly likely.





Public Information Statement
Mobile & Email Alerts Statement as of 7:11 am EDT on May 24, 2013

... Frost facts for Pittsburgh area...

Normals...
average date of last killing frost in Spring April 21
average date of first killing frost in autumn October 20
average length of growing season 182 days

Records...
latest date of killing frost is Spring may 29 1894
earliest date of killing frost in autumn September 17 1959
latest date of killing frost in autumn November 11 1994

Shortest growing season 131 days may 29 1894 - Oct 7 1894

Longest growing season 215 days Apr 1 1901 - Nov 2 1901
                          215 days Apr 8 1902 - Nov 9 1902

Coldest temperatures so late in the Spring season...

    34 Jun 11 1972
    33 may 25 1925
    30 may 24 1963
    27 may 10 1966
    26 may 7 1970