Weather History for Allentown, PA

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Week of December 16, 2012 through December 22, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 56 °F 47 °F 40 °F
Mean Temperature 46 °F 42 °F 35 °F
Min Temperature 41 °F 36 °F 26 °F
Degree Days  
Heating Degree Days (base 65) 30 23 19 163
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 0 0 0 0
Dew Point  
Dew Point 54 °F 34 °F 20 °F
Precipitation  
Precipitation 1.44 in 0.39 in 0.00 in 2.36 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind  
Wind 29 mph 10 mph 0 mph
Gust Wind 40 mph 24 mph 17 mph
Sea Level Pressure  
Sea Level Pressure 30.21 in 29.75 in 29.15 in

Weekly Weather History Graph

Weekly Weather History Graph

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Date:

Astronomy

Dec. 20, 2012 Rise Set
Actual Time 7:21 AM EST 4:37 PM EST
Civil Twilight 6:50 AM EST 5:08 PM EST
Nautical Twilight 6:16 AM EST 5:42 PM EST
Astronomical Twilight 5:43 AM EST 6:16 PM EST
Moon 11:55 AM EST (12/20) 12:04 AM EST (12/20)
Length of Visible Light 10h 17m
Length of Day
9h 15m
First Quarter, 55% of the Moon is Illuminated
Dec 20
First Quarter
Dec 28
Full
Jan 4
Last Quarter
Jan 11
New
Jan 18
First Quarter

Daily Weather History & Observations

2012 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Dec high avg low high avg low high avg low high avg low high avg low high avg high sum  
16 49 45 41 43 40 34 100 87 73 30.18 30.02 29.90 10 6 2 13 8 16 0.07 Rain
17 42 41 39 41 40 38 100 95 89 29.91 29.79 29.61 9 2 1 13 8 15 0.31 Rain
18 52 46 40 46 40 30 100 83 66 29.70 29.56 29.48 10 6 0 23 10 35 0.16 Fog , Rain
19 49 43 36 30 27 25 70 58 45 30.17 29.92 29.72 10 10 10 18 9 26 0.00  
20 44 35 26 41 29 24 92 74 55 30.21 30.06 29.66 10 9 5 23 7 30 0.38 Rain
21 56 45 34 54 40 27 93 76 59 29.58 29.28 29.15 10 6 2 25 15 35 1.44 Rain , Snow
22 40 37 34 30 24 20 89 67 44 29.90 29.62 29.36 10 10 6 29 16 40 T Snow