Weather History for Chatham, MA

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Sunday, December 22, 2013

  Actual Average Record
Temperature  
Mean Temperature 50 °F -  
Max Temperature 54 °F 40 °F 55 °F (2011)
Min Temperature 45 °F 27 °F 6 °F (1989)
Degree Days  
Heating Degree Days 16    
Moisture  
Dew Point 48 °F    
Average Humidity 96    
Maximum Humidity 100    
Minimum Humidity 93    
Precipitation  
Precipitation 0.01 in - - ()
Sea Level Pressure  
Sea Level Pressure 29.95 in    
Wind  
Wind Speed 9 mph (SW)    
Max Wind Speed 14 mph    
Max Gust Speed 26 mph    
Visibility 3 miles    
Events Fog , Rain    
Averages and records for this station are not official NWS values.
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Dec. 22, 2013 Rise Set
Actual Time 7:04 AM EST 4:13 PM EST
Civil Twilight 6:32 AM EST 4:44 PM EST
Nautical Twilight 5:57 AM EST 5:19 PM EST
Astronomical Twilight 5:23 AM EST 5:53 PM EST
Moon 9:26 PM EST (12/22) 9:55 AM EST (12/22)
Length of Visible Light 10h 12m
Length of Day
9h 09m
Waning Gibbous, 77% of the Moon is Illuminated
Dec 22
Waning Gibbous
Dec 25
Last Quarter
Jan 1
New
Jan 7
First Quarter
Jan 15
Full

Hourly Weather History & Observations

Time (EST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:52 AM 48.0 °F - 46.9 °F 96% 29.97 in 0.8 mi SW 10.4 mph 19.6 mph N/A   Mist
1:52 AM 50.0 °F - 48.0 °F 93% 29.96 in 0.8 mi SW 11.5 mph 20.7 mph N/A   Mist
2:52 AM 48.9 °F - 48.0 °F 97% 29.96 in 0.8 mi SW 10.4 mph 19.6 mph N/A   Mist
3:03 AM 50.0 °F - 48.0 °F 93% 29.94 in 1.0 mi SW 8.1 mph 17.3 mph N/A   Mist
3:11 AM 48.9 °F - 48.0 °F 97% 29.94 in 0.8 mi SW 9.2 mph 18.4 mph N/A   Mist
3:52 AM 51.1 °F - 50.0 °F 96% 29.94 in 0.5 mi SW 10.4 mph 21.9 mph N/A Fog Fog
4:52 AM 50.0 °F - 48.9 °F 96% 29.93 in 0.8 mi SW 8.1 mph 19.6 mph N/A   Mist
5:30 AM 50.0 °F - 48.9 °F 96% 29.92 in 1.0 mi SW 9.2 mph 18.4 mph N/A   Mist
5:52 AM 50.0 °F - 48.9 °F 96% 29.92 in 1.0 mi SW 9.2 mph 18.4 mph N/A   Mist
6:16 AM 48.0 °F - 46.9 °F 96% 29.91 in 0.8 mi SSW 6.9 mph - N/A   Mist
6:52 AM 48.9 °F - 48.0 °F 97% 29.93 in 0.8 mi WSW 9.2 mph - 0.01 in   Mist
7:02 AM 50.0 °F - 48.9 °F 96% 29.91 in 1.2 mi SW 10.4 mph 18.4 mph N/A   Overcast
7:47 AM 51.8 °F - 51.8 °F 100% 29.90 in 0.8 mi SW 13.8 mph 20.7 mph N/A   Mist
7:52 AM 51.1 °F - 50.0 °F 96% 29.90 in 0.5 mi SW 13.8 mph 20.7 mph N/A Fog Fog
8:16 AM 50.0 °F - 48.0 °F 93% 29.90 in 0.2 mi SW 12.7 mph 20.7 mph N/A Fog Fog
8:52 AM 50.0 °F - 48.0 °F 93% 29.91 in 0.2 mi SW 12.7 mph 21.9 mph N/A Fog Fog
9:52 AM 52.0 °F - 50.0 °F 93% 29.94 in 0.2 mi SW 13.8 mph 26.5 mph N/A Fog Fog
10:52 AM 50.0 °F - 50.0 °F 100% 29.94 in 0.2 mi SW 12.7 mph 24.2 mph N/A Fog Fog
11:52 AM 51.1 °F - 50.0 °F 96% 29.92 in 0.2 mi SW 11.5 mph 20.7 mph N/A Fog Fog
12:52 PM 50.0 °F - 50.0 °F 100% 29.92 in 0.2 mi SW 10.4 mph 23.0 mph N/A Fog Fog
1:52 PM 51.1 °F - 50.0 °F 96% 29.93 in 0.2 mi SW 11.5 mph 25.3 mph N/A Fog Fog
2:52 PM 52.0 °F - 51.1 °F 97% 29.94 in 0.2 mi SW 11.5 mph 24.2 mph N/A Fog Fog
3:52 PM 50.0 °F - 48.9 °F 96% 29.94 in 0.2 mi SW 8.1 mph 16.1 mph N/A Fog Fog
4:52 PM 46.9 °F - 46.0 °F 97% 29.91 in 0.2 mi SSW 9.2 mph 17.3 mph N/A Fog Fog
5:52 PM 48.9 °F - 48.0 °F 97% 29.92 in 0.5 mi Variable 5.8 mph - N/A Fog Fog
6:31 PM 50.0 °F - 48.9 °F 96% 29.97 in 1.0 mi West 11.5 mph 19.6 mph N/A   Mist
6:43 PM 51.1 °F - 50.0 °F 96% 29.96 in 3.0 mi WSW 10.4 mph 19.6 mph N/A   Overcast
6:52 PM 53.1 °F - 52.0 °F 96% 29.96 in 5.0 mi WSW 9.2 mph 23.0 mph N/A   Overcast
7:13 PM 54.0 °F - 52.0 °F 93% 29.98 in 7.0 mi Variable 5.8 mph - 0.00 in Rain Light Rain
7:23 PM 52.0 °F - 51.1 °F 97% 30.00 in 8.0 mi NW 9.2 mph 16.1 mph 0.00 in Rain Light Rain
7:31 PM 50.0 °F - 48.9 °F 96% 30.00 in 8.0 mi NW 8.1 mph 18.4 mph 0.00 in Rain Light Rain
7:38 PM 48.9 °F - 48.0 °F 97% 29.99 in 9.0 mi Variable 6.9 mph 18.4 mph 0.00 in Rain Light Rain
7:43 PM 48.9 °F - 46.9 °F 93% 29.98 in 9.0 mi NNW 8.1 mph - 0.00 in Rain Light Rain
7:52 PM 46.9 °F - 46.0 °F 97% 29.99 in 10.0 mi Variable 4.6 mph - 0.00 in   Mostly Cloudy
8:22 PM 46.0 °F 44.8 °F 45.0 °F 96% 29.99 in 10.0 mi Variable 3.5 mph - N/A   Mostly Cloudy
8:29 PM 46.0 °F - 45.0 °F 96% 29.99 in 10.0 mi Calm Calm - N/A   Scattered Clouds
8:52 PM 46.0 °F - 45.0 °F 96% 30.01 in 9.0 mi Calm Calm - N/A   Partly Cloudy
9:52 PM 45.0 °F - 44.1 °F 97% 30.01 in 5.0 mi Calm Calm - N/A   Clear
10:52 PM 46.0 °F - 44.1 °F 93% 30.01 in 7.0 mi Calm Calm - N/A   Clear
11:52 PM 46.0 °F - 44.1 °F 93% 30.02 in 7.0 mi Calm Calm - N/A   Clear