Weather History for Allentown, PA

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Sunday, December 23, 2012

  Actual Average Record
Temperature  
Mean Temperature 34 °F 30 °F  
Max Temperature 41 °F 38 °F 64 °F (1990)
Min Temperature 26 °F 22 °F -3 °F (1960)
Degree Days  
Heating Degree Days 31 35  
Month to date heating degree days 566 728  
Since 1 July heating degree days 1711 1908  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 1048 757  
Moisture  
Dew Point 21 °F    
Average Humidity 54    
Maximum Humidity 69    
Minimum Humidity 38    
Precipitation  
Precipitation 0.00 in 0.10 in 1.56 in (1923)
Month to date precipitation 3.30 2.78  
Year to date precipitation 40.01 44.55  
Snow  
Snow 0.00 in 0.20 in 5.20 in (1963)
Month to date snowfall T 3.4  
Since 1 July snowfall 1.4 4.1  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 29.94 in    
Wind  
Wind Speed 10 mph (WSW)    
Max Wind Speed 21 mph    
Max Gust Speed 28 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Dec. 23, 2012 Rise Set
Actual Time 7:23 AM EST 4:39 PM EST
Civil Twilight 6:52 AM EST 5:10 PM EST
Nautical Twilight 6:17 AM EST 5:44 PM EST
Astronomical Twilight 5:44 AM EST 6:17 PM EST
Moon 1:29 PM EST (12/23) 3:02 AM EST (12/23)
Length of Visible Light 10h 17m
Length of Day
9h 15m
Waxing Gibbous, 81% of the Moon is Illuminated
Dec 23
Waxing Gibbous
Dec 28
Full
Jan 4
Last Quarter
Jan 11
New
Jan 18
First Quarter

Hourly Weather History & Observations

Time (EST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:51 AM 35.1 °F 25.9 °F 21.9 °F 59% 29.90 in 10.0 mi West 13.8 mph 24.2 mph N/A   Overcast
1:51 AM 35.1 °F 25.2 °F 21.9 °F 59% 29.93 in 10.0 mi West 16.1 mph 23.0 mph N/A   Overcast
2:51 AM 35.1 °F 25.5 °F 21.9 °F 59% 29.94 in 10.0 mi West 15.0 mph 23.0 mph N/A   Overcast
3:51 AM 35.1 °F 28.6 °F 21.9 °F 59% 29.95 in 10.0 mi West 8.1 mph - N/A   Overcast
4:51 AM 35.1 °F 27.4 °F 21.9 °F 59% 29.95 in 10.0 mi West 10.4 mph - N/A   Overcast
5:51 AM 35.1 °F 27.4 °F 23.0 °F 61% 29.96 in 10.0 mi West 10.4 mph - N/A   Overcast
6:51 AM 35.1 °F 27.4 °F 23.0 °F 61% 29.97 in 10.0 mi WSW 10.4 mph - N/A   Overcast
7:51 AM 34.0 °F 26.6 °F 24.1 °F 67% 29.99 in 10.0 mi SW 9.2 mph - N/A   Overcast
8:51 AM 34.0 °F 24.2 °F 23.0 °F 64% 29.99 in 10.0 mi WSW 15.0 mph - N/A   Overcast
9:51 AM 35.1 °F 25.2 °F 23.0 °F 61% 29.99 in 10.0 mi WSW 16.1 mph 21.9 mph N/A   Clear
10:51 AM 36.0 °F 25.6 °F 21.9 °F 57% 29.98 in 10.0 mi WSW 18.4 mph 23.0 mph N/A   Clear
11:51 AM 37.9 °F 30.0 °F 21.0 °F 51% 29.94 in 10.0 mi WSW 12.7 mph - N/A   Clear
12:51 PM 39.0 °F 30.6 °F 19.9 °F 46% 29.92 in 10.0 mi SW 15.0 mph - N/A   Clear
1:51 PM 39.9 °F 31.8 °F 19.0 °F 43% 29.90 in 10.0 mi WSW 15.0 mph - N/A   Clear
2:51 PM 41.0 °F 33.9 °F 18.0 °F 40% 29.89 in 10.0 mi West 12.7 mph 20.7 mph N/A   Clear
3:51 PM 39.9 °F 34.5 °F 18.0 °F 41% 29.89 in 10.0 mi West 8.1 mph - N/A   Clear
4:51 PM 35.1 °F 30.1 °F 19.0 °F 52% 29.90 in 10.0 mi SW 5.8 mph - N/A   Clear
5:51 PM 33.1 °F 28.7 °F 19.9 °F 59% 29.90 in 10.0 mi SW 4.6 mph - N/A   Clear
6:51 PM 33.1 °F 30.0 °F 19.9 °F 59% 29.91 in 10.0 mi WSW 3.5 mph - N/A   Clear
7:51 PM 33.1 °F 30.0 °F 19.9 °F 59% 29.92 in 10.0 mi West 3.5 mph - N/A   Clear
8:51 PM 28.9 °F 23.9 °F 19.9 °F 69% 29.94 in 10.0 mi West 4.6 mph - N/A   Clear
9:51 PM 30.9 °F 25.2 °F 19.9 °F 64% 29.95 in 10.0 mi WNW 5.8 mph - N/A   Clear
10:51 PM 28.0 °F 22.8 °F 19.9 °F 72% 29.98 in 10.0 mi SSW 4.6 mph - N/A   Clear
11:51 PM 30.9 °F 26.2 °F 19.9 °F 64% 29.98 in 10.0 mi WSW 4.6 mph - N/A   Clear