Weather History for Allentown, PA

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Week of September 1, 2013 through September 7, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 87 °F 79 °F 71 °F
Mean Temperature 79 °F 69 °F 59 °F
Min Temperature 70 °F 58 °F 46 °F
Degree Days  
Heating Degree Days (base 65) 6 1 0 9
Cooling Degree Days (base 65) 14 5 0 35
Growing Degree Days (base 50) 29 19 8 131
Dew Point  
Dew Point 73 °F 58 °F 39 °F
Precipitation  
Precipitation 0.68 in 0.13 in 0.00 in 0.79 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind  
Wind 20 mph 5 mph 0 mph
Gust Wind 26 mph 20 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.29 in 29.96 in 29.70 in

Weekly Weather History Graph

Weekly Weather History Graph

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Astronomy

Sep. 06, 2013 Rise Set
Actual Time 6:33 AM EDT 7:25 PM EDT
Civil Twilight 6:06 AM EDT 7:53 PM EDT
Nautical Twilight 5:33 AM EDT 8:26 PM EDT
Astronomical Twilight 4:58 AM EDT 9:00 PM EDT
Moon 7:44 AM EDT (9/6) 7:47 PM EDT (9/6)
Length of Visible Light 13h 47m
Length of Day
12h 51m
New Moon, 1% of the Moon is Illuminated
Sep 6
New Moon
Sep 12
First Quarter
Sep 19
Full
Sep 26
Last Quarter
Oct 4
New

Daily Weather History & Observations

2013 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Sep high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 87 79 70 73 72 69 94 78 61 29.86 29.82 29.78 10 8 4 7 4 9 0.11 Rain , Thunderstorm
2 83 76 69 73 70 68 97 83 69 29.81 29.77 29.70 10 7 1 20 3 26 0.68 Rain
3 80 71 61 68 63 55 97 70 42 29.93 29.80 29.74 10 6 0 15 5 21 0.00 Fog
4 79 68 57 59 57 55 93 69 45 30.05 29.99 29.93 10 10 10 15 7 20 0.00  
5 76 66 55 60 53 44 90 63 35 30.18 30.04 29.96 10 10 9 16 7 22 0.00  
6 71 59 46 48 44 39 89 62 35 30.29 30.22 30.16 10 10 10 10 2 15 0.00  
7 78 62 46 59 50 44 93 65 36 30.15 30.05 29.93 10 10 10 10 4 15 T