Weather History for Allentown, PA

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Friday, September 13, 2013

  Actual Average Record
Temperature  
Mean Temperature 65 °F 65 °F  
Max Temperature 74 °F 76 °F 94 °F (1952)
Min Temperature 55 °F 54 °F 39 °F (1967)
Degree Days  
Heating Degree Days 0 3  
Month to date heating degree days 14 20  
Since 1 July heating degree days 18 31  
Cooling Degree Days 0 3  
Month to date cooling degree days 78 48  
Year to date cooling degree days 903 727  
Growing Degree Days 14 (Base 50)    
Moisture  
Dew Point 56 °F    
Average Humidity 71    
Maximum Humidity 93    
Minimum Humidity 49    
Precipitation  
Precipitation T in 0.15 in 2.38 in (1944)
Month to date precipitation 1.32 1.74  
Year to date precipitation 36.16 31.51  
Snow  
Snow 0.00 in 0.00 in 0.00 in (2002)
Month to date snowfall 0.0 0.0  
Since 1 July snowfall 0.0 0.0  
Since 1 September snowfall 0.0 0.0  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 29.76 in    
Wind  
Wind Speed 7 mph (NW)    
Max Wind Speed 22 mph    
Max Gust Speed 30 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Sep. 13, 2013 Rise Set
Actual Time 6:40 AM EDT 7:13 PM EDT
Civil Twilight 6:13 AM EDT 7:41 PM EDT
Nautical Twilight 5:40 AM EDT 8:13 PM EDT
Astronomical Twilight 5:07 AM EDT 8:46 PM EDT
Moon 3:02 PM EDT (9/13) 12:06 AM EDT (9/13)
Length of Visible Light 13h 27m
Length of Day
12h 33m
First Quarter, 61% of the Moon is Illuminated
Sep 13
First Quarter
Sep 19
Full
Sep 26
Last Quarter
Oct 4
New
Oct 11
First Quarter

Hourly Weather History & Observations

Time (EDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:51 AM 68.0 °F 64.9 °F 90% 29.71 in 9.0 mi SSW 3.5 mph - 0.00 in   Overcast
1:51 AM 66.9 °F 64.9 °F 93% 29.70 in 10.0 mi Calm Calm - 0.00 in   Overcast
2:51 AM 66.0 °F 64.0 °F 93% 29.68 in 8.0 mi SW 4.6 mph - 0.00 in   Overcast
3:51 AM 66.0 °F 64.0 °F 93% 29.68 in 4.0 mi WSW 3.5 mph - N/A   Mostly Cloudy
4:51 AM 66.9 °F 64.9 °F 93% 29.68 in 6.0 mi West 5.8 mph - N/A   Overcast
5:51 AM 64.9 °F 60.1 °F 84% 29.70 in 10.0 mi NNW 4.6 mph - N/A   Overcast
6:51 AM 64.0 °F 59.0 °F 84% 29.71 in 10.0 mi Calm Calm - N/A   Clear
7:51 AM 64.9 °F 60.1 °F 84% 29.71 in 10.0 mi Calm Calm - N/A   Clear
8:51 AM 64.9 °F 57.0 °F 75% 29.71 in 10.0 mi NNW 11.5 mph 18.4 mph N/A   Clear
9:51 AM 66.0 °F 57.9 °F 75% 29.75 in 10.0 mi NW 3.5 mph - N/A   Overcast
10:51 AM 66.9 °F 57.0 °F 70% 29.75 in 10.0 mi NW 10.4 mph - N/A   Mostly Cloudy
11:51 AM 71.1 °F 57.0 °F 61% 29.74 in 10.0 mi WNW 9.2 mph - N/A   Partly Cloudy
12:51 PM 72.0 °F 55.0 °F 55% 29.72 in 10.0 mi NW 6.9 mph - N/A   Scattered Clouds
1:51 PM 69.1 °F 54.0 °F 58% 29.73 in 10.0 mi WNW 9.2 mph 23.0 mph 0.00 in   Mostly Cloudy
2:51 PM 72.0 °F 54.0 °F 53% 29.74 in 10.0 mi North 12.7 mph - N/A   Clear
3:51 PM 72.0 °F 51.1 °F 48% 29.75 in 10.0 mi North 15.0 mph 20.7 mph N/A   Mostly Cloudy
4:51 PM 69.1 °F 51.1 °F 53% 29.77 in 10.0 mi NNW 8.1 mph - N/A   Mostly Cloudy
5:51 PM 68.0 °F 51.1 °F 55% 29.78 in 10.0 mi NNW 16.1 mph 21.9 mph N/A   Mostly Cloudy
6:51 PM 64.9 °F 50.0 °F 58% 29.80 in 10.0 mi NNW 9.2 mph - N/A   Scattered Clouds
7:51 PM 62.1 °F 50.0 °F 65% 29.83 in 10.0 mi NNW 10.4 mph 16.1 mph N/A   Clear
8:51 PM 60.1 °F 50.0 °F 69% 29.88 in 10.0 mi NNW 10.4 mph 18.4 mph N/A   Clear
9:51 PM 57.9 °F 48.9 °F 72% 29.90 in 10.0 mi North 6.9 mph - N/A   Clear
10:51 PM 55.9 °F 46.9 °F 72% 29.91 in 10.0 mi NNW 6.9 mph - N/A   Clear
11:51 PM 55.0 °F 46.0 °F 72% 29.91 in 10.0 mi NNW 8.1 mph - N/A   Scattered Clouds