Weather History for Chatham, MA

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Tuesday, August 13, 2013

  Actual Average Record
Temperature  
Mean Temperature 68 °F -  
Max Temperature 71 °F 75 °F 84 °F (2002)
Min Temperature 64 °F 62 °F 54 °F (1997)
Cooling Degree Days 2    
Growing Degree Days 18 (Base 50)    
Moisture  
Dew Point 66 °F    
Average Humidity 93    
Maximum Humidity 100    
Minimum Humidity 83    
Precipitation  
Precipitation 0.26 in - - ()
Sea Level Pressure  
Sea Level Pressure 29.82 in    
Wind  
Wind Speed 2 mph (SE)    
Max Wind Speed 7 mph    
Max Gust Speed -    
Visibility 4 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

Aug. 13, 2013 Rise Set
Actual Time 5:46 AM EDT 7:42 PM EDT
Civil Twilight 5:16 AM EDT 8:12 PM EDT
Nautical Twilight 4:39 AM EDT 8:48 PM EDT
Astronomical Twilight 3:59 AM EDT 9:28 PM EDT
Moon 12:44 PM EDT (8/13) 11:08 PM EDT (8/13)
Length of Visible Light 14h 55m
Length of Day
13h 55m
Waxing Crescent, 41% of the Moon is Illuminated
Aug 13
Waxing Crescent
Aug 14
First Quarter
Aug 20
Full
Aug 28
Last Quarter
Sep 5
New

Hourly Weather History & Observations

Time (EDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:52 AM 69.1 °F 66.9 °F 93% 29.94 in 7.0 mi Calm Calm - N/A   Overcast
1:48 AM 68.0 °F 64.4 °F 88% 29.93 in 6.0 mi Calm Calm - N/A   Scattered Clouds
1:52 AM 68.0 °F 64.9 °F 90% 29.93 in 7.0 mi Calm Calm - N/A   Partly Cloudy
2:43 AM 66.2 °F 64.4 °F 94% 29.92 in 5.0 mi Calm Calm - N/A   Mostly Cloudy
2:52 AM 66.9 °F 64.9 °F 93% 29.92 in 5.0 mi Calm Calm - N/A   Mostly Cloudy
3:19 AM 66.2 °F 64.4 °F 94% 29.91 in 1.5 mi Calm Calm - N/A   Mostly Cloudy
3:22 AM 66.2 °F 64.4 °F 94% 29.91 in 0.8 mi Calm Calm - N/A   Mostly Cloudy
3:52 AM 64.9 °F 64.0 °F 97% 29.91 in 0.2 mi Calm Calm - N/A Fog Fog
4:52 AM 66.0 °F 64.9 °F 96% 29.91 in 0.2 mi Calm Calm - N/A Fog Fog
5:28 AM 66.2 °F 64.4 °F 94% 29.90 in 0.5 mi Calm Calm - N/A Fog Fog
5:41 AM 66.2 °F 64.4 °F 94% 29.90 in 1.2 mi Calm Calm - N/A   Overcast
5:52 AM 66.0 °F 64.9 °F 96% 29.91 in 1.2 mi Calm Calm - N/A   Overcast
6:01 AM 66.2 °F 64.4 °F 94% 29.90 in 0.5 mi Calm Calm - N/A Fog Fog
6:18 AM 66.2 °F 66.2 °F 100% 29.90 in 0.2 mi SSE 3.5 mph - N/A Fog Fog
6:52 AM 68.0 °F 66.0 °F 93% 29.90 in 0.2 mi Calm Calm - N/A Fog Fog
7:41 AM 68.0 °F 66.2 °F 94% 29.89 in 0.8 mi SSE 3.5 mph - N/A   Mist
7:48 AM 68.0 °F 66.2 °F 94% 29.88 in 1.8 mi Calm Calm - N/A   Overcast
7:52 AM 68.0 °F 66.9 °F 96% 29.89 in 1.8 mi South 3.5 mph - N/A   Overcast
8:02 AM 68.0 °F 66.2 °F 94% 29.88 in 3.0 mi Calm Calm - N/A   Overcast
8:52 AM 70.0 °F 66.0 °F 87% 29.87 in 10.0 mi Variable 4.6 mph - N/A   Overcast
9:52 AM 69.1 °F 66.0 °F 90% 29.87 in 10.0 mi South 4.6 mph - N/A   Overcast
10:52 AM 70.0 °F 66.0 °F 87% 29.87 in 10.0 mi South 4.6 mph - N/A   Overcast
11:30 AM 71.6 °F 66.2 °F 83% 29.86 in 1.8 mi South 3.5 mph - N/A   Overcast
11:38 AM 69.8 °F 66.2 °F 88% 29.86 in 10.0 mi South 4.6 mph - N/A   Overcast
11:52 AM 71.1 °F 66.9 °F 87% 29.87 in 10.0 mi SSW 5.8 mph - N/A   Overcast
12:52 PM 69.1 °F 66.9 °F 93% 29.86 in 4.0 mi Variable 3.5 mph - 0.03 in Rain Light Rain
1:31 PM 71.6 °F 69.8 °F 94% 29.86 in 2.0 mi Calm Calm - 0.03 in Rain Rain
1:48 PM 71.6 °F 69.8 °F 94% 29.86 in 3.0 mi SW 4.6 mph - 0.05 in Rain Light Rain
1:52 PM 71.1 °F 69.1 °F 93% 29.86 in 3.0 mi SW 4.6 mph - 0.05 in Rain Light Rain
1:59 PM 69.8 °F 69.8 °F 100% 29.85 in 2.0 mi Variable 4.6 mph - 0.02 in Rain Rain
2:06 PM 69.8 °F 68.0 °F 94% 29.84 in 2.5 mi Calm Calm - 0.03 in Rain Rain
2:21 PM 69.8 °F 68.0 °F 94% 29.82 in 4.0 mi Calm Calm - 0.04 in Rain Light Rain
2:52 PM 70.0 °F 68.0 °F 93% 29.80 in 4.0 mi SE 3.5 mph - 0.07 in Rain Light Rain
3:06 PM 69.8 °F 68.0 °F 94% 29.78 in 2.5 mi SSE 5.8 mph - 0.00 in Rain Light Rain
3:23 PM 69.8 °F 66.2 °F 88% 29.78 in 3.0 mi South 3.5 mph - 0.01 in Rain Light Rain
3:36 PM 68.0 °F 66.2 °F 94% 29.77 in 1.8 mi SE 5.8 mph - 0.01 in Rain Light Rain
3:52 PM 68.0 °F 66.9 °F 96% 29.76 in 2.5 mi ESE 6.9 mph - 0.02 in Rain Light Rain
4:05 PM 68.0 °F 66.2 °F 94% 29.76 in 4.0 mi SE 3.5 mph - 0.01 in Rain Light Rain
4:16 PM 66.2 °F 64.4 °F 94% 29.75 in 10.0 mi SE 6.9 mph - 0.01 in   Mostly Cloudy
4:52 PM 68.0 °F 64.9 °F 90% 29.73 in 10.0 mi ESE 6.9 mph - 0.01 in   Scattered Clouds
5:52 PM 69.1 °F 64.9 °F 87% 29.72 in 10.0 mi Calm Calm - N/A   Partly Cloudy
6:52 PM 69.1 °F 64.9 °F 87% 29.70 in 10.0 mi ENE 4.6 mph - N/A   Overcast
7:21 PM 68.0 °F 64.4 °F 88% 29.72 in 2.0 mi ENE 3.5 mph - 0.03 in Rain Light Rain
7:27 PM 68.0 °F 64.4 °F 88% 29.71 in 1.5 mi ENE 4.6 mph - 0.04 in Rain Rain
7:34 PM 68.0 °F 64.4 °F 88% 29.71 in 3.0 mi ENE 4.6 mph - 0.05 in Rain Light Rain
7:47 PM 68.0 °F 64.4 °F 88% 29.71 in 8.0 mi ENE 4.6 mph - 0.05 in Rain Light Rain
7:52 PM 68.0 °F 64.9 °F 90% 29.71 in 8.0 mi ENE 5.8 mph - 0.05 in   Overcast
8:16 PM 68.0 °F 64.4 °F 88% 29.71 in 2.5 mi ENE 3.5 mph - 0.01 in Rain Light Rain
8:52 PM 66.9 °F 66.0 °F 97% 29.71 in 3.0 mi NE 5.8 mph - 0.03 in   Overcast
9:01 PM 68.0 °F 66.2 °F 94% 29.71 in 4.0 mi NNE 5.8 mph - N/A   Overcast
9:11 PM 66.2 °F 66.2 °F 100% 29.71 in 4.0 mi NNE 3.5 mph - N/A   Overcast
9:22 PM 66.2 °F 66.2 °F 100% 29.71 in 5.0 mi North 4.6 mph - N/A   Overcast
9:43 PM 66.2 °F 66.2 °F 100% 29.71 in 5.0 mi NNW 3.5 mph - N/A   Overcast
9:52 PM 66.9 °F 64.9 °F 93% 29.71 in 5.0 mi Calm Calm - N/A   Overcast
10:38 PM 68.0 °F 66.2 °F 94% 29.69 in 6.0 mi Calm Calm - N/A   Overcast
10:52 PM 68.0 °F 66.0 °F 93% 29.71 in 6.0 mi Calm Calm - N/A   Overcast
11:52 PM 68.0 °F 66.0 °F 93% 29.70 in 5.0 mi Calm Calm - N/A   Overcast