Weather History for Chatham, MA

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Friday, July 12, 2013

  Actual Average Record
Temperature  
Mean Temperature 69 °F -  
Max Temperature 72 °F 75 °F 88 °F (1997)
Min Temperature 66 °F 60 °F 54 °F (2002)
Cooling Degree Days 4    
Growing Degree Days 19 (Base 50)    
Moisture  
Dew Point 66 °F    
Average Humidity 92    
Maximum Humidity 100    
Minimum Humidity 78    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.05 in    
Wind  
Wind Speed 5 mph (NE)    
Max Wind Speed 14 mph    
Max Gust Speed 21 mph    
Visibility 4 miles    
Events Fog    
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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Astronomy

Jul. 12, 2013 Rise Set
Actual Time 5:16 AM EDT 8:14 PM EDT
Civil Twilight 4:43 AM EDT 8:47 PM EDT
Nautical Twilight 4:00 AM EDT 9:29 PM EDT
Astronomical Twilight 3:11 AM EDT 10:19 PM EDT
Moon 9:34 AM EDT (7/12) 10:18 PM EDT (7/12)
Length of Visible Light 16h 04m
Length of Day
14h 58m
Waxing Crescent, 17% of the Moon is Illuminated
Jul 12
Waxing Crescent
Jul 15
First Quarter
Jul 22
Full
Jul 29
Last Quarter
Aug 6
New

Hourly Weather History & Observations

Time (EDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:44 AM 71.6 °F 69.8 °F 94% 29.92 in 3.0 mi Calm Calm - N/A   Mostly Cloudy
12:52 AM 72.0 °F 70.0 °F 93% 29.92 in 3.0 mi Calm Calm - N/A   Scattered Clouds
1:52 AM 71.1 °F 70.0 °F 96% 29.92 in 3.0 mi Calm Calm - N/A   Mostly Cloudy
2:00 AM 71.6 °F 69.8 °F 94% 29.92 in 4.0 mi Calm Calm - N/A   Mostly Cloudy
2:52 AM 72.0 °F 70.0 °F 93% 29.93 in 4.0 mi Calm Calm - N/A   Overcast
3:23 AM 71.6 °F 69.8 °F 94% 29.94 in 4.0 mi Calm Calm - N/A   Overcast
3:45 AM 71.6 °F 69.8 °F 94% 29.95 in 2.5 mi NE 4.6 mph - N/A   Overcast
3:52 AM 71.1 °F 69.1 °F 93% 29.95 in 1.0 mi Variable 4.6 mph - N/A   Overcast
3:59 AM 71.6 °F 69.8 °F 94% 29.95 in 0.5 mi NNE 5.8 mph - N/A Fog Fog
4:27 AM 71.6 °F 69.8 °F 94% 29.96 in 1.2 mi NNE 4.6 mph - N/A   Overcast
4:38 AM 71.6 °F 69.8 °F 94% 29.97 in 2.0 mi NNE 3.5 mph - N/A   Overcast
4:48 AM 71.6 °F 69.8 °F 94% 29.97 in 1.2 mi NNE 6.9 mph - N/A   Overcast
4:52 AM 71.1 °F 69.1 °F 93% 29.98 in 1.0 mi NNE 6.9 mph - N/A   Overcast
5:04 AM 69.8 °F 69.8 °F 100% 29.97 in 3.0 mi NNE 5.8 mph - N/A   Overcast
5:21 AM 69.8 °F 69.8 °F 100% 29.97 in 1.5 mi NE 6.9 mph - N/A   Overcast
5:31 AM 69.8 °F 69.8 °F 100% 29.98 in 0.8 mi NNE 8.1 mph - N/A   Overcast
5:52 AM 69.1 °F 68.0 °F 96% 29.99 in 0.5 mi NNE 6.9 mph - N/A Fog Fog
6:02 AM 68.0 °F 66.2 °F 94% 29.98 in 0.2 mi NNE 6.9 mph - N/A Fog Fog
6:09 AM 68.0 °F 66.2 °F 94% 29.98 in 0.5 mi NE 9.2 mph - N/A Fog Fog
6:29 AM 68.0 °F 66.2 °F 94% 29.99 in 1.2 mi NNE 9.2 mph - N/A   Overcast
6:52 AM 68.0 °F 66.9 °F 96% 30.00 in 0.5 mi NE 9.2 mph - N/A Fog Fog
7:16 AM 68.0 °F 66.2 °F 94% 30.00 in 1.5 mi NE 8.1 mph - N/A   Overcast
7:24 AM 68.0 °F 66.2 °F 94% 30.01 in 3.0 mi NE 6.9 mph - N/A   Overcast
7:36 AM 69.8 °F 66.2 °F 88% 30.01 in 1.8 mi NE 6.9 mph - N/A   Overcast
7:49 AM 69.8 °F 66.2 °F 88% 30.02 in 3.0 mi Variable 5.8 mph - N/A   Overcast
7:52 AM 69.1 °F 66.9 °F 93% 30.03 in 4.0 mi NNE 6.9 mph - N/A   Overcast
8:02 AM 68.0 °F 66.2 °F 94% 30.02 in 1.8 mi NE 8.1 mph - N/A   Overcast
8:21 AM 68.0 °F 66.2 °F 94% 30.03 in 2.5 mi NNE 8.1 mph - N/A   Overcast
8:32 AM 69.8 °F 66.2 °F 88% 30.03 in 4.0 mi NE 9.2 mph - N/A   Overcast
8:52 AM 69.1 °F 66.9 °F 93% 30.04 in 9.0 mi NE 9.2 mph - N/A   Overcast
9:52 AM 70.0 °F 66.9 °F 90% 30.05 in 8.0 mi NE 8.1 mph - N/A   Overcast
10:52 AM 70.0 °F 66.0 °F 87% 30.07 in 10.0 mi NE 9.2 mph - N/A   Overcast
11:52 AM 70.0 °F 66.0 °F 87% 30.09 in 9.0 mi NNE 8.1 mph - N/A   Overcast
12:25 PM 69.8 °F 66.2 °F 88% 30.09 in 1.8 mi NE 9.2 mph - N/A   Overcast
12:45 PM 69.8 °F 66.2 °F 88% 30.09 in 2.0 mi NE 12.7 mph 18.4 mph N/A   Overcast
12:52 PM 68.0 °F 64.9 °F 90% 30.09 in 1.8 mi NNE 13.8 mph 19.6 mph N/A   Overcast
12:58 PM 69.8 °F 64.4 °F 83% 30.09 in 3.0 mi NNE 10.4 mph 19.6 mph N/A   Overcast
2:36 PM 69.8 °F 62.6 °F 78% 30.10 in 10.0 mi NE 9.2 mph - N/A   Overcast
2:52 PM 69.1 °F 62.1 °F 78% 30.11 in 10.0 mi NE 9.2 mph - N/A   Overcast
3:52 PM 68.0 °F 62.1 °F 81% 30.11 in 10.0 mi NE 13.8 mph 20.7 mph N/A   Overcast
4:52 PM 68.0 °F 62.1 °F 81% 30.12 in 10.0 mi NNE 9.2 mph - N/A   Overcast
5:52 PM 68.0 °F 62.1 °F 81% 30.12 in 10.0 mi NE 8.1 mph 16.1 mph N/A   Overcast
6:52 PM 66.9 °F 63.0 °F 87% 30.14 in 9.0 mi NE 9.2 mph - N/A   Overcast
7:42 PM 66.2 °F 64.4 °F 94% 30.14 in 4.0 mi NE 9.2 mph - N/A   Overcast
7:52 PM 66.0 °F 64.0 °F 93% 30.15 in 3.0 mi ENE 9.2 mph - N/A   Overcast
8:06 PM 66.2 °F 64.4 °F 94% 30.15 in 2.0 mi ENE 11.5 mph - N/A   Overcast
8:19 PM 66.2 °F 64.4 °F 94% 30.14 in 6.0 mi ENE 10.4 mph - N/A   Overcast
8:52 PM 66.9 °F 64.0 °F 90% 30.16 in 8.0 mi ENE 5.8 mph - N/A   Overcast
9:52 PM 66.0 °F 64.0 °F 93% 30.18 in 6.0 mi ENE 8.1 mph - N/A   Overcast
10:14 PM 66.2 °F 64.4 °F 94% 30.17 in 1.8 mi ENE 6.9 mph - N/A   Overcast
10:52 PM 66.0 °F 64.9 °F 96% 30.19 in 0.5 mi ENE 6.9 mph - N/A Fog Fog
11:03 PM 66.2 °F 64.4 °F 94% 30.18 in 0.2 mi ENE 8.1 mph - N/A Fog Fog
11:41 PM 66.2 °F 64.4 °F 94% 30.18 in 0.5 mi East 6.9 mph - N/A Fog Fog
11:52 PM 66.0 °F 64.9 °F 96% 30.19 in 0.5 mi ENE 6.9 mph - N/A Fog Fog