Weather History for Philadelphia, PA

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Monday, January 21, 2013

  Actual Average Record
Temperature  
Mean Temperature 32 °F 33 °F  
Max Temperature 36 °F 40 °F 62 °F (1959)
Min Temperature 27 °F 25 °F -6 °F (1985)
Degree Days  
Heating Degree Days 33 32  
Month to date heating degree days 538 670  
Since 1 July heating degree days 2034 2340  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 17 °F    
Average Humidity 64    
Maximum Humidity 92    
Minimum Humidity 36    
Precipitation  
Precipitation 0.05 in 0.10 in 1.32 in (1979)
Month to date precipitation 2.22 2.05  
Year to date precipitation 2.22 2.05  
Snow  
Snow 1.40 in 0.30 in 3.40 in (1917)
Month to date snowfall 2.1 4.0  
Since 1 July snowfall 2.5 7.7  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 29.97 in    
Wind  
Wind Speed 7 mph (NW)    
Max Wind Speed 22 mph    
Max Gust Speed 28 mph    
Visibility 7 miles    
Events Fog , Snow    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Jan. 21, 2013 Rise Set
Actual Time 7:17 AM EST 5:07 PM EST
Civil Twilight 6:48 AM EST 5:36 PM EST
Nautical Twilight 6:15 AM EST 6:09 PM EST
Astronomical Twilight 5:43 AM EST 6:42 PM EST
Moon 12:45 PM EST (1/21) 2:43 AM EST (1/21)
Length of Visible Light 10h 48m
Length of Day
9h 50m
Waxing Gibbous, 75% of the Moon is Illuminated
Jan 21
Waxing Gibbous
Jan 26
Full
Feb 3
Last Quarter
Feb 10
New
Feb 17
First Quarter

Hourly Weather History & Observations

Time (EST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:54 AM 30.9 °F 20.7 °F 9.0 °F 40% 30.11 in 10.0 mi NW 13.8 mph - N/A   Mostly Cloudy
1:54 AM 30.0 °F 21.7 °F 8.1 °F 40% 30.13 in 10.0 mi NW 9.2 mph - N/A   Mostly Cloudy
2:54 AM 30.0 °F 22.4 °F 9.0 °F 41% 30.13 in 10.0 mi NNW 8.1 mph - N/A   Scattered Clouds
3:54 AM 28.9 °F 21.1 °F 9.0 °F 43% 30.12 in 10.0 mi NNW 8.1 mph - N/A   Mostly Cloudy
4:54 AM 28.9 °F 20.4 °F 9.0 °F 43% 30.11 in 10.0 mi NNW 9.2 mph - N/A   Mostly Cloudy
5:54 AM 28.0 °F 19.3 °F 9.0 °F 45% 30.10 in 10.0 mi North 9.2 mph - N/A   Mostly Cloudy
6:54 AM 28.0 °F 20.0 °F 8.1 °F 43% 30.11 in 10.0 mi North 8.1 mph - N/A   Mostly Cloudy
7:54 AM 28.0 °F 21.7 °F 9.0 °F 45% 30.12 in 10.0 mi NNW 5.8 mph - N/A   Mostly Cloudy
8:54 AM 28.9 °F - 8.1 °F 41% 30.12 in 10.0 mi Calm Calm - N/A   Overcast
9:54 AM 30.0 °F - 8.1 °F 40% 30.12 in 10.0 mi Calm Calm - N/A   Overcast
10:54 AM 30.9 °F 26.2 °F 8.1 °F 38% 30.09 in 10.0 mi SSW 4.6 mph - N/A   Overcast
11:54 AM 32.0 °F 27.5 °F 9.0 °F 38% 30.05 in 10.0 mi South 4.6 mph - N/A   Overcast
12:54 PM 33.1 °F 26.9 °F 10.0 °F 38% 30.01 in 10.0 mi South 6.9 mph - N/A   Overcast
1:54 PM 34.0 °F 29.8 °F 10.9 °F 38% 29.97 in 10.0 mi SW 4.6 mph - N/A   Overcast
2:54 PM 34.0 °F 31.0 °F 10.9 °F 38% 29.93 in 10.0 mi SW 3.5 mph - N/A   Overcast
3:54 PM 36.0 °F 30.3 °F 12.9 °F 39% 29.89 in 10.0 mi South 6.9 mph - N/A   Mostly Cloudy
4:54 PM 35.1 °F 32.2 °F 12.9 °F 40% 29.87 in 10.0 mi South 3.5 mph - N/A   Mostly Cloudy
5:54 PM 35.1 °F 32.2 °F 14.0 °F 42% 29.88 in 10.0 mi North 3.5 mph - N/A   Overcast
6:46 PM 35.6 °F 28.6 °F 15.8 °F 44% 29.88 in 9.0 mi NNW 9.2 mph - 0.00 in Snow Light Snow
6:54 PM 35.1 °F 30.1 °F 18.0 °F 50% 29.88 in 9.0 mi NNW 5.8 mph - 0.00 in Snow Light Snow
7:11 PM 33.8 °F 22.5 °F 21.2 °F 60% 29.89 in 5.0 mi NW 19.6 mph 25.3 mph 0.00 in Snow Light Snow
7:14 PM 32.0 °F 19.8 °F 21.2 °F 64% 29.90 in 3.0 mi NW 20.7 mph 25.3 mph 0.00 in Snow Light Snow
7:19 PM 30.2 °F 18.1 °F 24.8 °F 80% 29.90 in 2.0 mi NNW 18.4 mph 25.3 mph 0.00 in Snow Light Snow
7:21 PM 30.2 °F 18.5 °F 24.8 °F 80% 29.90 in 1.5 mi NNW 17.3 mph - 0.00 in Snow Light Snow
7:26 PM 30.2 °F 20.2 °F 24.8 °F 80% 29.90 in 1.0 mi NNW 12.7 mph - 0.00 in Snow Light Snow
7:33 PM 30.2 °F 23.4 °F 26.6 °F 86% 29.90 in 0.5 mi NNW 6.9 mph - 0.00 in Fog , Snow Snow
7:40 PM 28.4 °F 20.4 °F 26.6 °F 93% 29.90 in 0.2 mi NNW 8.1 mph - 0.01 in Fog , Snow Heavy Snow
7:44 PM 28.4 °F 18.5 °F 26.6 °F 93% 29.91 in 0.5 mi NNW 11.5 mph - 0.02 in Fog , Snow Snow
7:48 PM 28.4 °F 19.7 °F 26.6 °F 93% 29.91 in 0.8 mi NNW 9.2 mph - 0.03 in Snow Light Snow
7:54 PM 28.9 °F 21.1 °F 27.0 °F 92% 29.90 in 0.8 mi North 8.1 mph - 0.04 in Snow Light Snow
8:01 PM 28.4 °F 21.2 °F 26.6 °F 93% 29.91 in 1.5 mi NNW 6.9 mph - 0.01 in Snow Light Snow
8:05 PM 28.4 °F 21.2 °F 26.6 °F 93% 29.91 in 2.0 mi NNW 6.9 mph - 0.01 in Snow Light Snow
8:13 PM 28.4 °F 19.1 °F 26.6 °F 93% 29.91 in 2.5 mi NNW 10.4 mph - 0.01 in Snow Light Snow
8:18 PM 28.4 °F 19.1 °F 26.6 °F 93% 29.90 in 3.0 mi NNW 10.4 mph - 0.01 in Snow Light Snow
8:28 PM 30.2 °F 20.8 °F 24.8 °F 80% 29.90 in 7.0 mi NNW 11.5 mph 17.3 mph 0.01 in Snow Light Snow
8:46 PM 30.2 °F 20.2 °F 23.0 °F 75% 29.91 in 10.0 mi NNW 12.7 mph - 0.01 in   Overcast
8:54 PM 30.0 °F 20.5 °F 21.9 °F 72% 29.91 in 10.0 mi NNW 11.5 mph - 0.01 in Snow Light Snow
9:54 PM 28.9 °F 21.1 °F 21.9 °F 75% 29.90 in 10.0 mi NNW 8.1 mph - 0.00 in   Mostly Cloudy
10:54 PM 28.9 °F 16.9 °F 18.0 °F 64% 29.91 in 10.0 mi NW 17.3 mph - N/A   Scattered Clouds
11:54 PM 27.0 °F 15.6 °F 12.0 °F 53% 29.92 in 10.0 mi NW 13.8 mph - N/A   Scattered Clouds