Weather History for Allentown, PA

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Saturday, January 1, 2011

  Actual Average Record
Temperature  
Mean Temperature 38 °F 28 °F  
Max Temperature 50 °F 37 °F 62 °F (2005)
Min Temperature 26 °F 20 °F -3 °F (1968)
Degree Days  
Heating Degree Days 27 37  
Month to date heating degree days 27 37  
Since 1 July heating degree days 2232 2232  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 33 °F    
Average Humidity 74    
Maximum Humidity 92    
Minimum Humidity 56    
Precipitation  
Precipitation 0.00 in 0.09 in 1.41 in (1945)
Month to date precipitation 0.00 0.09  
Year to date precipitation 0.00 0.09  
Snow  
Snow 0.00 in 0.30 in 7.80 in (1971)
Month to date snowfall 0.0 0.3  
Since 1 July snowfall 5.0 6.2  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.07 in    
Wind  
Wind Speed 1 mph (SE)    
Max Wind Speed 7 mph    
Max Gust Speed 9 mph    
Visibility 6 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Jan. 01, 2011 Rise Set
Actual Time 7:25 AM EST 4:45 PM EST
Civil Twilight 6:54 AM EST 5:15 PM EST
Nautical Twilight 6:20 AM EST 5:50 PM EST
Astronomical Twilight 5:47 AM EST 6:23 PM EST
Moon 4:57 AM EST (1/1) 2:19 PM EST (1/1)
Length of Visible Light 10h 21m
Length of Day
9h 19m
Waning Crescent, 8% of the Moon is Illuminated
Jan 1
Waning Crescent
Jan 4
New
Jan 12
First Quarter
Jan 19
Full
Jan 26
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 30.0 °F - 26.1 °F 85% 30.14 in 5.0 mi Calm Calm - N/A   Clear
1:51 AM 28.0 °F - 26.1 °F 92% 30.14 in 5.0 mi Calm Calm - N/A   Clear
2:51 AM 28.0 °F - 26.1 °F 92% 30.14 in 5.0 mi Calm Calm - N/A   Clear
3:51 AM 28.0 °F - 26.1 °F 92% 30.14 in 5.0 mi Calm Calm - N/A   Clear
4:51 AM 27.0 °F - 25.0 °F 92% 30.14 in 5.0 mi Calm Calm - N/A   Clear
5:51 AM 28.0 °F - 25.0 °F 88% 30.12 in 5.0 mi Calm Calm - N/A   Clear
6:51 AM 27.0 °F - 25.0 °F 92% 30.13 in 5.0 mi Calm Calm - N/A   Clear
7:51 AM 27.0 °F - 25.0 °F 92% 30.12 in 3.0 mi Calm Calm - N/A   Clear
8:51 AM 34.0 °F - 28.9 °F 82% 30.12 in 4.0 mi Calm Calm - N/A   Haze
9:51 AM 36.0 °F - 30.0 °F 79% 30.13 in 4.0 mi Calm Calm - N/A   Haze
10:51 AM 43.0 °F - 30.9 °F 62% 30.12 in 5.0 mi Calm Calm - N/A   Haze
11:51 AM 46.9 °F - 33.1 °F 59% 30.09 in 7.0 mi Calm Calm - N/A   Clear
12:51 PM 48.0 °F - 34.0 °F 58% 30.06 in 7.0 mi Calm Calm - N/A   Clear
1:51 PM 50.0 °F - 35.1 °F 57% 30.04 in 7.0 mi Calm Calm - N/A   Clear
2:51 PM 50.0 °F - 39.0 °F 66% 30.03 in 8.0 mi SSW 3.5 mph - N/A   Clear
3:51 PM 48.9 °F - 39.0 °F 69% 30.03 in 6.0 mi SSW 3.5 mph - N/A   Haze
4:38 PM 46.4 °F - 39.2 °F 76% 30.01 in 8.0 mi Calm Calm - N/A   Haze
4:51 PM 48.0 °F - 39.0 °F 71% 30.02 in 9.0 mi Calm Calm - N/A   Haze
5:51 PM 46.0 °F - 37.0 °F 71% 30.01 in 8.0 mi Calm Calm - N/A   Haze
6:51 PM 46.0 °F - 37.0 °F 71% 30.02 in 8.0 mi Calm Calm - N/A   Overcast
7:25 PM 46.4 °F - 39.2 °F 76% 30.00 in 8.0 mi Calm Calm - N/A   Overcast
7:51 PM 45.0 °F - 37.9 °F 76% 30.01 in 8.0 mi Calm Calm - N/A   Overcast
8:51 PM 46.0 °F 44.8 °F 39.0 °F 76% 30.00 in 7.0 mi NE 3.5 mph - N/A   Overcast
9:51 PM 45.0 °F 43.5 °F 39.9 °F 82% 29.99 in 7.0 mi NE 3.5 mph - N/A   Overcast
10:51 PM 46.0 °F - 41.0 °F 83% 29.98 in 7.0 mi Calm Calm - N/A   Overcast
11:51 PM 46.0 °F - 42.1 °F 86% 29.96 in 6.0 mi Calm Calm - N/A   Overcast