Weather History for Allentown, PA

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Thursday, February 21, 2013

  Actual Average Record
Temperature  
Mean Temperature 28 °F 32 °F  
Max Temperature 36 °F 41 °F 67 °F (1953)
Min Temperature 20 °F 23 °F 0 °F (1936)
Degree Days  
Heating Degree Days 37 33  
Month to date heating degree days 760 735  
Since 1 July heating degree days 3753 4085  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 12 °F    
Average Humidity 53    
Maximum Humidity 65    
Minimum Humidity 40    
Precipitation  
Precipitation 0.00 in 0.09 in 0.90 in (1989)
Month to date precipitation 1.37 2.01  
Year to date precipitation 5.36 5.04  
Snow  
Snow 0.00 in 0.40 in 14.50 in (1947)
Month to date snowfall 7.4 8.7  
Since 1 July snowfall 16.9 24.6  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.14 in    
Wind  
Wind Speed 13 mph (NW)    
Max Wind Speed 28 mph    
Max Gust Speed 35 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Feb. 21, 2013 Rise Set
Actual Time 6:47 AM EST 5:44 PM EST
Civil Twilight 6:19 AM EST 6:11 PM EST
Nautical Twilight 5:47 AM EST 6:43 PM EST
Astronomical Twilight 5:16 AM EST 7:15 PM EST
Moon 1:56 PM EST (2/21) 3:50 AM EST (2/21)
Length of Visible Light 11h 52m
Length of Day
10h 57m
Waxing Gibbous, 83% of the Moon is Illuminated
Feb 21
Waxing Gibbous
Feb 25
Full
Mar 4
Last Quarter
Mar 11
New
Mar 19
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 24.1 °F 13.7 °F 10.0 °F 55% 30.05 in 10.0 mi West 10.4 mph 19.6 mph N/A   Overcast
1:51 AM 24.1 °F 13.1 °F 10.0 °F 55% 30.05 in 10.0 mi WNW 11.5 mph 18.4 mph N/A   Overcast
2:51 AM 24.1 °F 11.0 °F 10.9 °F 57% 30.04 in 10.0 mi WNW 16.1 mph 26.5 mph N/A   Overcast
3:51 AM 24.1 °F 11.5 °F 10.9 °F 57% 30.04 in 10.0 mi West 15.0 mph 23.0 mph N/A   Overcast
4:51 AM 24.1 °F 13.1 °F 10.9 °F 57% 30.04 in 10.0 mi West 11.5 mph 26.5 mph N/A   Overcast
5:51 AM 25.0 °F 16.3 °F 10.9 °F 55% 30.06 in 10.0 mi WNW 8.1 mph - N/A   Overcast
6:51 AM 24.8 °F 15.3 °F 10.4 °F 54% 30.05 in 10.0 mi WNW 9.2 mph - N/A   Overcast
7:51 AM 25.0 °F 14.2 °F 10.9 °F 55% 30.08 in 10.0 mi West 11.5 mph 18.4 mph N/A   Overcast
8:51 AM 26.1 °F 14.0 °F 10.9 °F 53% 30.09 in 10.0 mi WNW 15.0 mph 24.2 mph N/A   Overcast
9:51 AM 27.0 °F 14.7 °F 10.9 °F 51% 30.11 in 10.0 mi West 16.1 mph 26.5 mph N/A   Overcast
10:51 AM 28.0 °F 17.0 °F 12.0 °F 51% 30.13 in 10.0 mi WNW 13.8 mph 26.5 mph N/A   Overcast
11:51 AM 32.0 °F 21.2 °F 12.9 °F 45% 30.11 in 10.0 mi WNW 16.1 mph 21.9 mph N/A   Overcast
12:51 PM 32.0 °F 22.1 °F 12.0 °F 44% 30.10 in 10.0 mi WNW 13.8 mph 24.2 mph N/A   Overcast
1:51 PM 34.0 °F 23.8 °F 12.9 °F 42% 30.10 in 10.0 mi NNW 16.1 mph 25.3 mph N/A   Overcast
2:51 PM 36.0 °F 27.5 °F 14.0 °F 41% 30.10 in 10.0 mi WNW 12.7 mph 18.4 mph N/A   Overcast
3:51 PM 36.0 °F 27.5 °F 14.0 °F 41% 30.11 in 10.0 mi NW 12.7 mph - N/A   Clear
4:51 PM 34.0 °F 24.6 °F 14.0 °F 44% 30.15 in 10.0 mi NW 13.8 mph 24.2 mph N/A   Clear
5:51 PM 30.9 °F 19.8 °F 15.1 °F 52% 30.17 in 10.0 mi NNW 16.1 mph 20.7 mph N/A   Clear
6:51 PM 30.0 °F 19.1 °F 15.1 °F 54% 30.23 in 10.0 mi NNW 15.0 mph 27.6 mph N/A   Clear
7:51 PM 28.0 °F 13.0 °F 14.0 °F 56% 30.30 in 10.0 mi NNW 26.5 mph 33.4 mph N/A   Clear
8:51 PM 26.1 °F 21.9 °F 12.9 °F 58% 30.32 in 10.0 mi Variable 3.5 mph - N/A   Clear
9:51 PM 24.1 °F 14.4 °F 12.9 °F 62% 30.33 in 10.0 mi NNE 9.2 mph - N/A   Clear
10:51 PM 23.0 °F 14.7 °F 12.9 °F 65% 30.33 in 10.0 mi North 6.9 mph - N/A   Clear
11:51 PM 21.0 °F 13.4 °F 12.9 °F 71% 30.33 in 10.0 mi NW 5.8 mph - N/A   Clear