Weather History for Chatham, MA

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Week of December 8, 2013 through December 14, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 48 °F 36 °F 28 °F
Mean Temperature 41 °F 30 °F 23 °F
Min Temperature 34 °F 24 °F 16 °F
Degree Days  
Heating Degree Days (base 65) 42 35 24 247
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 0 0 0 0
Dew Point  
Dew Point 47 °F 20 °F 2 °F
Precipitation  
Precipitation 0.32 in 0.08 in 0.00 in 0.55 in
Snowdepth - - - -
Wind  
Wind 21 mph 7 mph 0 mph
Gust Wind 34 mph 22 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.58 in 30.21 in 29.79 in

Weekly Weather History Graph

Weekly Weather History Graph

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Date:

Astronomy

Dec. 09, 2013 Rise Set
Actual Time 6:55 AM EST 4:09 PM EST
Civil Twilight 6:24 AM EST 4:40 PM EST
Nautical Twilight 5:49 AM EST 5:15 PM EST
Astronomical Twilight 5:15 AM EST 5:49 PM EST
Moon 11:42 AM EST (12/9) No Moon Set
Length of Visible Light 10h 16m
Length of Day
9h 14m
Waxing Crescent, 51% of the Moon is Illuminated
Dec 9
Waxing Crescent
Dec 17
Full
Dec 25
Last Quarter
Jan 1
New
Jan 7
First Quarter

Daily Weather History & Observations

2013 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  
8 35 32 28 21 18 16 69 56 46 30.58 30.53 30.45 10 10 10 8 3 - 0.00  
9 48 41 34 47 38 25 100 91 70 30.48 30.11 29.85 10 4 1 21 11 34 0.32 Rain , Snow
10 39 34 28 36 30 18 96 88 65 30.01 29.86 29.79 10 5 0 10 5 24 0.19 Fog , Snow
11 34 30 25 19 17 13 75 60 43 30.26 30.18 30.04 10 10 10 15 9 24 0.00  
12 28 23 18 17 8 2 66 51 37 30.25 30.20 30.13 10 10 10 12 6 24 0.00  
13 32 24 16 15 9 4 63 51 38 30.35 30.13 30.03 10 10 10 12 5 23 0.00  
14 33 27 21 31 19 7 92 74 53 30.57 30.45 30.17 10 4 0 21 9 33 0.04 Fog , Snow