Weather History for Allentown, PA

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Monday, February 4, 2013

  Actual Average Record
Temperature  
Mean Temperature 25 °F 29 °F  
Max Temperature 30 °F 37 °F 65 °F (1991)
Min Temperature 19 °F 20 °F -1 °F (1985)
Degree Days  
Heating Degree Days 40 36  
Month to date heating degree days 171 146  
Since 1 July heating degree days 3164 3496  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 11 °F    
Average Humidity 58    
Maximum Humidity 74    
Minimum Humidity 42    
Precipitation  
Precipitation 0.00 in 0.10 in 1.24 in (1952)
Month to date precipitation 0.12 0.40  
Year to date precipitation 4.12 3.43  
Snow  
Snow 0.00 in 0.40 in 10.00 in (1961)
Month to date snowfall 1.5 1.7  
Since 1 July snowfall 11.0 17.6  
Snow Depth 1.00 in    
Sea Level Pressure  
Sea Level Pressure 29.96 in    
Wind  
Wind Speed 9 mph (West)    
Max Wind Speed 21 mph    
Max Gust Speed 25 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Feb. 04, 2013 Rise Set
Actual Time 7:08 AM EST 5:23 PM EST
Civil Twilight 6:39 AM EST 5:52 PM EST
Nautical Twilight 6:07 AM EST 6:24 PM EST
Astronomical Twilight 5:35 AM EST 6:56 PM EST
Moon 1:41 AM EST (2/4) 11:44 AM EST (2/4)
Length of Visible Light 11h 12m
Length of Day
10h 15m
Last Quarter, 37% of the Moon is Illuminated
Feb 4
Last Quarter
Feb 10
New
Feb 17
First Quarter
Feb 25
Full
Mar 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
12:51 AM 24.1 °F 13.1 °F 10.9 °F 57% 29.88 in 10.0 mi WNW 11.5 mph 20.7 mph N/A   Partly Cloudy
1:51 AM 21.9 °F 11.7 °F 9.0 °F 58% 29.90 in 10.0 mi WNW 9.2 mph 20.7 mph N/A   Clear
2:51 AM 21.9 °F 9.8 °F 9.0 °F 58% 29.92 in 10.0 mi West 12.7 mph 19.6 mph N/A   Clear
3:51 AM 21.9 °F 9.2 °F 9.0 °F 58% 29.94 in 10.0 mi WNW 13.8 mph 21.9 mph N/A   Clear
5:51 AM 19.4 °F 7.9 °F 8.6 °F 63% 29.94 in 10.0 mi West 10.4 mph - N/A   Clear
6:51 AM 19.9 °F 11.1 °F 9.0 °F 62% 29.97 in 10.0 mi West 6.9 mph - N/A   Clear
7:51 AM 21.0 °F 11.4 °F 9.0 °F 60% 29.99 in 10.0 mi West 8.1 mph - N/A   Clear
8:51 AM 23.0 °F 10.1 °F 10.0 °F 58% 30.01 in 10.0 mi West 15.0 mph 21.9 mph N/A   Clear
9:51 AM 24.1 °F 13.1 °F 10.0 °F 55% 30.01 in 10.0 mi West 11.5 mph 25.3 mph N/A   Partly Cloudy
10:51 AM 27.0 °F 15.6 °F 10.0 °F 49% 30.02 in 10.0 mi West 13.8 mph 24.2 mph N/A   Mostly Cloudy
11:51 AM 27.0 °F 14.7 °F 10.0 °F 49% 30.00 in 10.0 mi West 16.1 mph 21.9 mph N/A   Mostly Cloudy
12:51 PM 27.0 °F 15.6 °F 10.0 °F 49% 29.99 in 10.0 mi WSW 13.8 mph 21.9 mph N/A   Overcast
1:51 PM 28.0 °F 17.5 °F 9.0 °F 45% 29.97 in 10.0 mi West 12.7 mph 19.6 mph N/A   Partly Cloudy
2:51 PM 28.9 °F 18.2 °F 9.0 °F 43% 29.96 in 10.0 mi West 13.8 mph 20.7 mph N/A   Mostly Cloudy
3:51 PM 28.9 °F 18.6 °F 9.0 °F 43% 29.96 in 10.0 mi West 12.7 mph 20.7 mph N/A   Mostly Cloudy
4:51 PM 27.0 °F 19.5 °F 10.0 °F 49% 29.96 in 10.0 mi West 6.9 mph - N/A   Clear
5:51 PM 23.0 °F 17.0 °F 10.0 °F 58% 29.96 in 10.0 mi SSW 4.6 mph - N/A   Clear
6:51 PM 21.9 °F 17.2 °F 12.0 °F 66% 29.97 in 10.0 mi SSW 3.5 mph - N/A   Clear
7:51 PM 23.0 °F - 15.1 °F 72% 29.97 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
8:51 PM 26.1 °F 21.9 °F 17.1 °F 69% 29.97 in 10.0 mi SW 3.5 mph - N/A   Overcast
9:51 PM 27.0 °F 23.0 °F 15.1 °F 61% 29.96 in 10.0 mi WSW 3.5 mph - N/A   Overcast
10:51 PM 25.0 °F - 17.1 °F 72% 29.95 in 10.0 mi Calm Calm - N/A   Overcast
11:51 PM 26.6 °F - 17.6 °F 69% 29.92 in 10.0 mi Calm Calm - N/A   Overcast