Weather History for Philadelphia, PA

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Saturday, January 4, 2014

  Actual Average Record
Temperature  
Mean Temperature 19 °F 33 °F  
Max Temperature 29 °F 41 °F 68 °F (1950)
Min Temperature 8 °F 26 °F 2 °F (1918)
Degree Days  
Heating Degree Days 46 32  
Month to date heating degree days 163 126  
Since 1 July heating degree days 1776 1796  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 5 °F    
Average Humidity 58    
Maximum Humidity 73    
Minimum Humidity 42    
Precipitation  
Precipitation 0.00 in 0.10 in 1.51 in (1982)
Month to date precipitation 0.70 0.38  
Year to date precipitation 0.70 0.38  
Snow  
Snow 0.00 in 0.10 in 4.50 in (1942)
Month to date snowfall 9.0 0.6  
Since 1 July snowfall 20.2 4.3  
Snow Depth 9.00 in    
Sea Level Pressure  
Sea Level Pressure 30.46 in    
Wind  
Wind Speed 5 mph (South)    
Max Wind Speed 15 mph    
Max Gust Speed 20 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Jan. 04, 2014 Rise Set
Actual Time 7:22 AM EST 4:49 PM EST
Civil Twilight 6:52 AM EST 5:19 PM EST
Nautical Twilight 6:18 AM EST 5:53 PM EST
Astronomical Twilight 5:45 AM EST 6:26 PM EST
Moon 9:27 AM EST (1/4) 9:06 PM EST (1/4)
Length of Visible Light 10h 27m
Length of Day
9h 26m
Waxing Crescent, 15% of the Moon is Illuminated
Jan 4
Waxing Crescent
Jan 7
First Quarter
Jan 15
Full
Jan 24
Last Quarter
Jan 30
New

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 10.0 °F - -2.9 °F 56% 30.51 in 10.0 mi Calm Calm - N/A   Clear
1:54 AM 12.0 °F - -4.0 °F 49% 30.52 in 10.0 mi Calm Calm - N/A   Clear
2:54 AM 10.9 °F - -2.9 °F 54% 30.52 in 10.0 mi Calm Calm - N/A   Clear
3:54 AM 10.0 °F 3.6 °F -0.9 °F 61% 30.53 in 10.0 mi West 3.5 mph - N/A   Clear
4:54 AM 10.0 °F 1.8 °F -2.0 °F 58% 30.52 in 10.0 mi South 4.6 mph - N/A   Clear
5:54 AM 10.9 °F - -0.0 °F 61% 30.53 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
6:54 AM 10.9 °F 4.7 °F -0.9 °F 59% 30.56 in 10.0 mi SSW 3.5 mph - N/A   Partly Cloudy
7:54 AM 10.9 °F 2.9 °F -0.9 °F 59% 30.55 in 10.0 mi SSE 4.6 mph - N/A   Partly Cloudy
8:54 AM 12.9 °F 2.6 °F -2.0 °F 51% 30.57 in 10.0 mi SSE 6.9 mph - N/A   Clear
9:54 AM 16.0 °F 8.8 °F -4.0 °F 41% 30.56 in 10.0 mi South 4.6 mph - N/A   Clear
10:54 AM 19.9 °F 9.3 °F 1.9 °F 46% 30.53 in 10.0 mi South 9.2 mph - N/A   Clear
11:54 AM 23.0 °F 12.4 °F 5.0 °F 46% 30.48 in 10.0 mi SSW 10.4 mph - N/A   Clear
12:54 PM 26.1 °F 16.2 °F 7.0 °F 44% 30.44 in 10.0 mi South 10.4 mph - N/A   Clear
1:54 PM 28.0 °F 18.6 °F 9.0 °F 45% 30.43 in 10.0 mi SSW 10.4 mph 18.4 mph N/A   Scattered Clouds
2:54 PM 28.0 °F 18.6 °F 9.0 °F 45% 30.41 in 10.0 mi SSW 10.4 mph - N/A   Scattered Clouds
3:54 PM 28.9 °F 21.1 °F 9.0 °F 43% 30.40 in 10.0 mi SSW 8.1 mph - N/A   Scattered Clouds
4:54 PM 27.0 °F 18.0 °F 10.9 °F 51% 30.37 in 10.0 mi South 9.2 mph - N/A   Scattered Clouds
5:54 PM 26.1 °F 18.4 °F 12.0 °F 55% 30.37 in 10.0 mi South 6.9 mph - N/A   Scattered Clouds
6:54 PM 25.0 °F 20.7 °F 14.0 °F 63% 30.37 in 10.0 mi SSE 3.5 mph - N/A   Scattered Clouds
7:54 PM 24.1 °F 19.7 °F 14.0 °F 65% 30.37 in 10.0 mi SSE 3.5 mph - N/A   Partly Cloudy
8:54 PM 24.1 °F - 15.1 °F 69% 30.36 in 10.0 mi Calm Calm - N/A   Clear
9:54 PM 21.0 °F - 14.0 °F 74% 30.35 in 10.0 mi Calm Calm - N/A   Clear
10:54 PM 19.0 °F - 12.0 °F 74% 30.33 in 10.0 mi Calm Calm - N/A   Clear
11:54 PM 17.1 °F - 12.0 °F 81% 30.31 in 10.0 mi Calm Calm - N/A   Partly Cloudy