Weather History for Chatham, MA

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Thursday, February 20, 2014

  Actual Average Record
Temperature  
Mean Temperature 41 °F -  
Max Temperature 48 °F 37 °F 54 °F (1984)
Min Temperature 34 °F 25 °F 12 °F (1993)
Degree Days  
Heating Degree Days 24    
Moisture  
Dew Point 31 °F    
Average Humidity 77    
Maximum Humidity 96    
Minimum Humidity 37    
Precipitation  
Precipitation 0.03 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.14 in    
Wind  
Wind Speed 7 mph (West)    
Max Wind Speed 12 mph    
Max Gust Speed 20 mph    
Visibility 9 miles    
Events 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

Feb. 20, 2014 Rise Set
Actual Time 6:28 AM EST 5:19 PM EST
Civil Twilight 6:00 AM EST 5:47 PM EST
Nautical Twilight 5:27 AM EST 6:20 PM EST
Astronomical Twilight 4:55 AM EST 6:52 PM EST
Moon 11:15 PM EST (2/20) 9:04 AM EST (2/20)
Length of Visible Light 11h 47m
Length of Day
10h 51m
Waning Gibbous, 71% of the Moon is Illuminated
Feb 20
Waning Gibbous
Feb 22
Last Quarter
Mar 1
New
Mar 8
First Quarter
Mar 16
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 34.0 °F 27.2 °F 33.1 °F 96% 29.84 in 7.0 mi WNW 8.1 mph - 0.01 in   Overcast
1:18 AM 34.0 °F 25.5 °F 33.1 °F 96% 29.87 in 7.0 mi WNW 11.5 mph 18.4 mph N/A   Mostly Cloudy
1:52 AM 34.0 °F 28.0 °F 33.1 °F 96% 29.91 in 7.0 mi WNW 6.9 mph - N/A   Clear
2:52 AM 35.1 °F 27.4 °F 33.1 °F 92% 29.95 in 8.0 mi WNW 10.4 mph 17.3 mph N/A   Clear
3:52 AM 35.1 °F 27.9 °F 33.1 °F 92% 30.00 in 9.0 mi West 9.2 mph - N/A   Clear
4:52 AM 35.1 °F 31.0 °F 33.1 °F 92% 30.05 in 10.0 mi West 4.6 mph - N/A   Clear
5:52 AM 35.1 °F 30.1 °F 32.0 °F 89% 30.08 in 10.0 mi Variable 5.8 mph - N/A   Clear
6:52 AM 34.0 °F 29.8 °F 32.0 °F 92% 30.12 in 6.0 mi WSW 4.6 mph - N/A   Clear
7:52 AM 37.9 °F 30.9 °F 32.0 °F 79% 30.15 in 10.0 mi WNW 10.4 mph - N/A   Clear
8:52 AM 39.9 °F 33.9 °F 30.0 °F 68% 30.17 in 10.0 mi NW 9.2 mph 19.6 mph N/A   Clear
9:52 AM 43.0 °F 37.7 °F 27.0 °F 53% 30.20 in 10.0 mi WNW 9.2 mph - N/A   Clear
10:52 AM 46.0 °F 41.9 °F 23.0 °F 40% 30.21 in 10.0 mi WNW 8.1 mph - N/A   Clear
11:52 AM 48.0 °F - 23.0 °F 37% 30.20 in 10.0 mi West 4.6 mph - N/A   Clear
12:52 PM 46.9 °F - 30.0 °F 52% 30.18 in 10.0 mi SSW 6.9 mph - N/A   Clear
1:52 PM 44.1 °F 40.8 °F 30.0 °F 58% 30.20 in 10.0 mi SW 5.8 mph 17.3 mph N/A   Clear
2:52 PM 42.1 °F 37.7 °F 30.0 °F 62% 30.22 in 10.0 mi SW 6.9 mph - N/A   Clear
3:52 PM 39.9 °F 35.1 °F 30.0 °F 68% 30.23 in 10.0 mi SSW 6.9 mph - N/A   Clear
4:52 PM 39.0 °F 34.0 °F 28.0 °F 65% 30.25 in 10.0 mi Variable 6.9 mph - N/A   Clear
5:52 PM 37.0 °F 34.5 °F 28.9 °F 73% 30.25 in 10.0 mi SW 3.5 mph - N/A   Clear
6:52 PM 36.0 °F 31.1 °F 32.0 °F 86% 30.23 in 10.0 mi SW 5.8 mph - N/A   Partly Cloudy
7:52 PM 37.0 °F - 33.1 °F 86% 30.19 in 10.0 mi Calm Calm - N/A   Overcast
8:37 PM 37.0 °F 33.3 °F 32.0 °F 82% 30.24 in 10.0 mi West 4.6 mph - N/A   Overcast
8:52 PM 37.9 °F - 32.0 °F 79% 30.23 in 10.0 mi Calm Calm - N/A   Overcast
9:52 PM 37.0 °F 34.5 °F 33.1 °F 86% 30.22 in 10.0 mi SW 3.5 mph - 0.00 in Rain Light Rain
10:52 PM 36.0 °F - 34.0 °F 93% 30.22 in 5.0 mi Calm Calm - 0.02 in Rain Light Rain
11:52 PM 37.0 °F 33.3 °F 34.0 °F 89% 30.17 in 10.0 mi NNE 4.6 mph - 0.00 in   Overcast