Weather History for Philadelphia, PA

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Sunday, December 30, 2012

  Actual Average Record
Temperature  
Mean Temperature 35 °F 34 °F  
Max Temperature 40 °F 41 °F 65 °F (1990)
Min Temperature 30 °F 27 °F -5 °F (1880)
Degree Days  
Heating Degree Days 30 31  
Month to date heating degree days 641 823  
Since 1 July heating degree days 1467 1639  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 1603 1301  
Moisture  
Dew Point 18 °F    
Average Humidity 53    
Maximum Humidity 69    
Minimum Humidity 37    
Precipitation  
Precipitation 0.00 in 0.09 in 2.30 in (1948)
Month to date precipitation 4.42 3.47  
Year to date precipitation 35.94 41.44  
Snow  
Snow 0.00 in 0.10 in 9.00 in (2000)
Month to date snowfall 0.2 3.2  
Since 1 July snowfall 0.2 3.5  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.03 in    
Wind  
Wind Speed 15 mph (WNW)    
Max Wind Speed 31 mph    
Max Gust Speed 41 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Dec. 30, 2012 Rise Set
Actual Time 7:22 AM EST 4:45 PM EST
Civil Twilight 6:51 AM EST 5:15 PM EST
Nautical Twilight 6:17 AM EST 5:49 PM EST
Astronomical Twilight 5:44 AM EST 6:22 PM EST
Moon 7:13 PM EST (12/30) 8:30 AM EST (12/30)
Length of Visible Light 10h 24m
Length of Day
9h 23m
Waning Gibbous, 95% of the Moon is Illuminated
Dec 30
Waning Gibbous
Jan 4
Last Quarter
Jan 11
New
Jan 18
First Quarter
Jan 26
Full

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 34.0 °F 23.8 °F 21.9 °F 61% 29.73 in 10.0 mi WNW 16.1 mph 25.3 mph N/A   Mostly Cloudy
1:54 AM 35.1 °F 24.5 °F 21.9 °F 59% 29.78 in 10.0 mi NW 18.4 mph 25.3 mph N/A   Mostly Cloudy
2:54 AM 35.1 °F 24.8 °F 21.9 °F 59% 29.81 in 10.0 mi WNW 17.3 mph 23.0 mph N/A   Mostly Cloudy
3:54 AM 35.1 °F 25.2 °F 21.0 °F 57% 29.83 in 10.0 mi WNW 16.1 mph 24.2 mph N/A   Mostly Cloudy
4:54 AM 34.0 °F 24.2 °F 19.9 °F 56% 29.85 in 10.0 mi WNW 15.0 mph 23.0 mph N/A   Mostly Cloudy
5:54 AM 34.0 °F 25.0 °F 18.0 °F 52% 29.88 in 10.0 mi WNW 12.7 mph - N/A   Partly Cloudy
6:54 AM 33.1 °F 23.9 °F 17.1 °F 52% 29.91 in 10.0 mi WNW 12.7 mph - N/A   Partly Cloudy
7:54 AM 33.1 °F 23.9 °F 18.0 °F 54% 29.95 in 10.0 mi West 12.7 mph - N/A   Partly Cloudy
8:54 AM 34.0 °F 24.2 °F 18.0 °F 52% 29.99 in 10.0 mi WNW 15.0 mph 23.0 mph N/A   Partly Cloudy
9:54 AM 36.0 °F 24.7 °F 17.1 °F 46% 30.03 in 10.0 mi WNW 21.9 mph 34.5 mph N/A   Scattered Clouds
10:54 AM 37.9 °F 28.2 °F 16.0 °F 41% 30.04 in 10.0 mi WNW 18.4 mph 36.8 mph N/A   Scattered Clouds
11:54 AM 39.0 °F 29.6 °F 15.1 °F 38% 30.04 in 10.0 mi WNW 18.4 mph 33.4 mph N/A   Scattered Clouds
12:54 PM 39.0 °F 27.6 °F 15.1 °F 38% 30.05 in 10.0 mi NW 27.6 mph 38.0 mph N/A   Mostly Cloudy
1:54 PM 39.0 °F 29.0 °F 17.1 °F 41% 30.06 in 10.0 mi WNW 20.7 mph 31.1 mph N/A   Mostly Cloudy
2:54 PM 37.9 °F 26.8 °F 18.0 °F 45% 30.08 in 10.0 mi WNW 24.2 mph 32.2 mph N/A   Mostly Cloudy
3:54 PM 37.9 °F 30.5 °F 17.1 °F 43% 30.12 in 10.0 mi WNW 11.5 mph 25.3 mph N/A   Mostly Cloudy
4:54 PM 37.0 °F 28.1 °F 17.1 °F 44% 30.16 in 10.0 mi WNW 15.0 mph 23.0 mph N/A   Mostly Cloudy
5:54 PM 37.0 °F 27.7 °F 17.1 °F 44% 30.19 in 10.0 mi WNW 16.1 mph 24.2 mph N/A   Mostly Cloudy
6:54 PM 37.0 °F 31.6 °F 17.1 °F 44% 30.23 in 10.0 mi WNW 6.9 mph - N/A   Mostly Cloudy
7:54 PM 36.0 °F 28.5 °F 18.0 °F 48% 30.24 in 10.0 mi WNW 10.4 mph - N/A   Mostly Cloudy
8:54 PM 35.1 °F 26.4 °F 18.0 °F 50% 30.22 in 10.0 mi NW 12.7 mph - N/A   Partly Cloudy
9:54 PM 35.1 °F 27.4 °F 17.1 °F 48% 30.23 in 10.0 mi NW 10.4 mph - N/A   Clear
10:54 PM 30.9 °F 22.8 °F 19.0 °F 61% 30.27 in 10.0 mi West 9.2 mph - N/A   Clear
11:54 PM 30.0 °F 21.7 °F 21.0 °F 69% 30.27 in 10.0 mi WSW 9.2 mph - N/A   Partly Cloudy