Weather History for Chatham, MA

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Tuesday, August 14, 2012

  Actual Average Record
Temperature  
Mean Temperature 75 °F -  
Max Temperature 84 °F 75 °F 84 °F (2002)
Min Temperature 68 °F 62 °F 57 °F (1998)
Cooling Degree Days 10    
Growing Degree Days 25 (Base 50)    
Moisture  
Dew Point 67 °F    
Average Humidity 74    
Maximum Humidity 87    
Minimum Humidity 60    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 29.95 in    
Wind  
Wind Speed 4 mph (SW)    
Max Wind Speed 10 mph    
Max Gust Speed -    
Visibility 10 miles    
Events      
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

Aug. 14, 2012 Rise Set
Actual Time 5:47 AM EDT 7:40 PM EDT
Civil Twilight 5:17 AM EDT 8:10 PM EDT
Nautical Twilight 4:41 AM EDT 8:46 PM EDT
Astronomical Twilight 4:01 AM EDT 9:25 PM EDT
Moon 2:41 AM EDT (8/14) 5:33 PM EDT (8/14)
Length of Visible Light 14h 52m
Length of Day
13h 52m
Waning Crescent, 10% of the Moon is Illuminated
Aug 14
Waning Crescent
Aug 17
New
Aug 24
First Quarter
Aug 31
Full
Sep 8
Last Quarter

Hourly Weather History & Observations

Time (EDT) Temp. Heat Index Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:52 AM 73.0 °F - 66.9 °F 81% 29.95 in 10.0 mi WSW 3.5 mph - N/A   Mostly Cloudy
1:52 AM 70.0 °F - 66.0 °F 87% 29.94 in 10.0 mi Calm Calm - N/A   Clear
2:52 AM 69.1 °F - 64.9 °F 87% 29.94 in 10.0 mi Calm Calm - N/A   Clear
3:52 AM 68.0 °F - 64.0 °F 87% 29.94 in 10.0 mi Calm Calm - N/A   Clear
6:52 AM 69.1 °F - 64.0 °F 84% 29.95 in 10.0 mi Calm Calm - N/A   Clear
7:52 AM 72.0 °F - 64.9 °F 78% 29.96 in 10.0 mi West 4.6 mph - N/A   Clear
8:52 AM 75.9 °F - 64.9 °F 69% 29.96 in 10.0 mi West 3.5 mph - N/A   Clear
9:52 AM 79.0 °F - 66.0 °F 64% 29.97 in 10.0 mi Calm Calm - N/A   Clear
10:52 AM 81.0 °F 83.8 °F 68.0 °F 65% 29.96 in 10.0 mi SSW 8.1 mph - N/A   Clear
11:52 AM 81.0 °F 83.3 °F 66.9 °F 62% 29.96 in 10.0 mi WSW 6.9 mph - N/A   Clear
12:52 PM 80.1 °F 82.3 °F 66.9 °F 64% 29.96 in 10.0 mi SW 8.1 mph - N/A   Clear
1:52 PM 82.0 °F 84.9 °F 68.0 °F 62% 29.96 in 10.0 mi SSW 10.4 mph - N/A   Clear
2:52 PM 82.0 °F 85.5 °F 69.1 °F 65% 29.94 in 10.0 mi SW 10.4 mph - N/A   Clear
3:52 PM 82.0 °F 85.9 °F 70.0 °F 67% 29.94 in 10.0 mi Variable 6.9 mph - N/A   Clear
4:52 PM 79.0 °F - 68.0 °F 69% 29.94 in 10.0 mi SSW 8.1 mph - N/A   Clear
5:52 PM 78.1 °F - 63.0 °F 60% 29.94 in 10.0 mi SW 9.2 mph - N/A   Clear
6:52 PM 75.9 °F - 64.9 °F 69% 29.94 in 10.0 mi SW 9.2 mph - N/A   Clear
7:52 PM 75.0 °F - 68.0 °F 79% 29.93 in 10.0 mi SW 5.8 mph - N/A   Clear
8:52 PM 73.9 °F - 66.9 °F 79% 29.95 in 10.0 mi WSW 5.8 mph - N/A   Clear
9:52 PM 73.0 °F - 66.9 °F 81% 29.96 in 10.0 mi SW 4.6 mph - N/A   Clear
10:52 PM 73.0 °F - 69.1 °F 87% 29.96 in 10.0 mi WSW 4.6 mph - N/A   Clear
11:52 PM 73.0 °F - 69.1 °F 87% 29.96 in 10.0 mi WSW 3.5 mph - N/A   Clear