Philadelphia, PA

12:57 AM EST on December 08, 2016 (GMT -0500)
Philadelphia International

Weather History for KPHL - December, 2012

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Tuesday, December 11, 2012

  Actual Average Record
Temperature  
Mean Temperature 48 °F 39 °F  
Max Temperature 57 °F 46 °F 65 °F (1971)
Min Temperature 39 °F 31 °F 8 °F (1880)
Degree Days  
Heating Degree Days 17 26  
Month to date heating degree days 188 271  
Since 1 July heating degree days 1014 1087  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 1603 1301  
Moisture  
Dew Point 41 °F    
Average Humidity 73    
Maximum Humidity 100    
Minimum Humidity 46    
Precipitation  
Precipitation 0.09 in 0.12 in 2.72 in (2008)
Month to date precipitation 0.86 1.37  
Year to date precipitation 32.38 39.34  
Snow  
Snow 0.00 in 0.10 in 3.70 in (1960)
Month to date snowfall 0.0 0.8  
Since 1 July snowfall T 1.1  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 29.86 in    
Wind  
Wind Speed 9 mph (NW)    
Max Wind Speed 23 mph    
Max Gust Speed 29 mph    
Visibility 8 miles    
Events Fog , Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Dec. 11, 2012 Rise Set
Actual Time 7:12 AM EST 4:36 PM EST
Civil Twilight 6:42 AM EST 5:06 PM EST
Nautical Twilight 6:08 AM EST 5:40 PM EST
Astronomical Twilight 5:35 AM EST 6:13 PM EST
Moon 5:04 AM EST (12/11) 3:13 PM EST (12/11)
Length of Visible Light 10h 24m
Length of Day
9h 23m
Waning Crescent, 4% of the Moon is Illuminated
Dec 11
Waning Crescent
Dec 13
New
Dec 20
First Quarter
Dec 28
Full
Jan 4
Last Quarter

Hourly Weather History & Observations

Time (EST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:07 AM 57.2 °F - 55.4 °F 94% 29.60 in 0.2 mi WSW 6.9 mph - N/A Fog Fog
12:54 AM 55.9 °F - 55.0 °F 97% 29.63 in 0.5 mi West 6.9 mph - N/A Fog Fog
1:02 AM 55.4 °F - 55.4 °F 100% 29.63 in 0.5 mi WSW 8.1 mph - 0.00 in Fog , Rain Light Rain
1:09 AM 55.4 °F - 55.4 °F 100% 29.63 in 1.5 mi WSW 5.8 mph - 0.00 in Rain Light Rain
1:13 AM 55.4 °F - 55.4 °F 100% 29.63 in 2.0 mi West 5.8 mph - N/A Rain Light Rain
1:19 AM 55.4 °F - 53.6 °F 94% 29.64 in 4.0 mi North 16.1 mph 20.7 mph 0.00 in Rain Light Rain
1:23 AM 55.4 °F - 53.6 °F 94% 29.65 in 6.0 mi NNW 13.8 mph 20.7 mph 0.01 in Rain Light Rain
1:31 AM 55.4 °F - 51.8 °F 88% 29.65 in 8.0 mi NNW 11.5 mph - 0.01 in   Overcast
1:44 AM 53.6 °F - 51.8 °F 94% 29.67 in 8.0 mi NNW 20.7 mph 24.2 mph 0.01 in   Overcast
1:50 AM 51.8 °F - 50.0 °F 94% 29.69 in 8.0 mi NNW 23.0 mph - 0.01 in   Overcast
1:54 AM 52.0 °F - 48.9 °F 89% 29.70 in 9.0 mi NNW 20.7 mph - 0.01 in   Overcast
2:14 AM 50.0 °F - 46.4 °F 87% 29.73 in 10.0 mi NNW 18.4 mph 28.8 mph 0.00 in Rain Light Rain
2:54 AM 48.0 °F - 43.0 °F 83% 29.73 in 10.0 mi North 10.4 mph - 0.00 in Rain Light Rain
3:13 AM 48.2 °F - 42.8 °F 82% 29.73 in 10.0 mi North 13.8 mph - N/A   Overcast
3:54 AM 48.0 °F - 42.1 °F 80% 29.74 in 10.0 mi North 8.1 mph - N/A   Overcast
4:54 AM 46.9 °F - 42.1 °F 83% 29.81 in 10.0 mi WNW 6.9 mph - 0.05 in Rain Light Rain
5:00 AM 46.4 °F 42.4 °F 42.8 °F 87% 29.81 in 8.0 mi WNW 8.1 mph - 0.01 in Rain Light Rain
5:06 AM 46.4 °F 41.9 °F 42.8 °F 87% 29.83 in 6.0 mi WNW 9.2 mph - 0.02 in Rain Light Rain
5:32 AM 46.4 °F 42.4 °F 42.8 °F 87% 29.83 in 8.0 mi NNW 8.1 mph - 0.03 in Rain Light Rain
5:54 AM 46.0 °F 43.9 °F 43.0 °F 89% 29.84 in 9.0 mi NNW 4.6 mph - 0.03 in Rain Light Rain
6:01 AM 46.4 °F 42.9 °F 42.8 °F 87% 29.84 in 10.0 mi NNW 6.9 mph - N/A   Overcast
6:54 AM 46.0 °F 41.0 °F 41.0 °F 83% 29.86 in 10.0 mi NNW 10.4 mph - N/A   Overcast
7:54 AM 46.0 °F 41.9 °F 39.9 °F 79% 29.89 in 10.0 mi NNW 8.1 mph - N/A   Mostly Cloudy
9:54 AM 46.9 °F - 37.9 °F 71% 29.94 in 10.0 mi NNW 9.2 mph - N/A   Mostly Cloudy
10:54 AM 48.0 °F - 37.0 °F 66% 29.97 in 10.0 mi NW 8.1 mph - N/A   Mostly Cloudy
11:54 AM 48.0 °F - 35.1 °F 61% 29.97 in 10.0 mi NW 9.2 mph - N/A   Mostly Cloudy
12:54 PM 48.9 °F - 34.0 °F 56% 29.98 in 10.0 mi NW 9.2 mph - N/A   Mostly Cloudy
1:54 PM 50.0 °F - 32.0 °F 50% 29.99 in 10.0 mi NNW 9.2 mph - N/A   Mostly Cloudy
2:54 PM 50.0 °F - 32.0 °F 50% 30.00 in 10.0 mi NW 6.9 mph - N/A   Mostly Cloudy
3:54 PM 50.0 °F - 30.0 °F 46% 30.03 in 10.0 mi NW 9.2 mph - N/A   Mostly Cloudy
4:54 PM 48.0 °F - 28.9 °F 48% 30.07 in 10.0 mi NW 8.1 mph - N/A   Mostly Cloudy
5:54 PM 46.9 °F - 28.0 °F 48% 30.10 in 10.0 mi NW 9.2 mph - N/A   Mostly Cloudy
6:54 PM 46.0 °F 43.1 °F 28.0 °F 50% 30.14 in 10.0 mi WNW 5.8 mph - N/A   Mostly Cloudy
7:54 PM 44.1 °F 38.1 °F 26.1 °F 49% 30.16 in 10.0 mi NW 11.5 mph - N/A   Mostly Cloudy
8:54 PM 43.0 °F 37.7 °F 25.0 °F 49% 30.18 in 10.0 mi NW 9.2 mph 20.7 mph N/A   Mostly Cloudy
9:54 PM 41.0 °F 37.1 °F 26.1 °F 55% 30.20 in 10.0 mi NW 5.8 mph - N/A   Overcast
10:54 PM 41.0 °F 38.0 °F 25.0 °F 53% 30.22 in 10.0 mi NNW 4.6 mph - N/A   Overcast
11:54 PM 39.0 °F 36.8 °F 26.1 °F 60% 30.22 in 10.0 mi NNW 3.5 mph - N/A   Overcast