Weather History for Lancaster, PA

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Week of December 16, 2012 through December 22, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 55 °F 47 °F 37 °F
Mean Temperature 47 °F 41 °F 34 °F
Min Temperature 42 °F 35 °F 30 °F
Degree Days  
Heating Degree Days (base 65) 30 24 18 167
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 0 0 0 0
Dew Point  
Dew Point 50 °F 34 °F 19 °F
Precipitation  
Precipitation 0.83 in 0.26 in 0.00 in 1.82 in
Snowdepth - - - -
Wind  
Wind 30 mph 11 mph 0 mph
Gust Wind 44 mph 28 mph 23 mph
Sea Level Pressure  
Sea Level Pressure 30.21 in 29.76 in 29.22 in

Weekly Weather History Graph

Weekly Weather History Graph

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Date:

Astronomy

Dec. 16, 2012 Rise Set
Actual Time 7:21 AM EST 4:40 PM EST
Civil Twilight 6:50 AM EST 5:11 PM EST
Nautical Twilight 6:16 AM EST 5:45 PM EST
Astronomical Twilight 5:43 AM EST 6:18 PM EST
Moon 9:53 AM EST (12/16) 8:52 PM EST (12/16)
Length of Visible Light 10h 20m
Length of Day
9h 19m
Waxing Crescent, 16% of the Moon is Illuminated
Dec 16
Waxing Crescent
Dec 20
First Quarter
Dec 28
Full
Jan 4
Last Quarter
Jan 11
New

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 48 44 39 45 42 33 96 87 74 30.14 29.95 29.85 9 4 0 7 4 - 0.15 Fog , Rain
17 46 44 42 45 43 41 100 94 90 29.87 29.78 29.56 5 2 0 10 6 - 0.29 Fog , Rain
18 55 47 37 46 40 28 100 83 58 29.76 29.58 29.51 10 5 0 28 7 37 0.03 Fog , Rain
19 45 39 33 32 29 27 82 69 56 30.17 29.95 29.78 10 9 6 20 8 26 0.00  
20 45 36 30 42 31 25 93 80 55 30.21 30.01 29.55 10 7 3 21 7 29 0.52 Rain
21 53 43 33 50 34 24 94 75 59 29.45 29.32 29.22 10 7 2 30 20 39 0.83 Rain , Snow
22 37 34 30 26 21 19 73 55 47 29.96 29.74 29.45 10 10 3 28 23 44 0.00 Snow