Weather History for Chatham, MA

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Saturday, September 14, 2013

  Actual Average Record
Temperature  
Mean Temperature 64 °F -  
Max Temperature 72 °F 69 °F 80 °F (2011)
Min Temperature 57 °F 56 °F 47 °F (1975)
Degree Days  
Heating Degree Days 1    
Growing Degree Days 14 (Base 50)    
Moisture  
Dew Point 56 °F    
Average Humidity 76    
Maximum Humidity 90    
Minimum Humidity 57    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 29.89 in    
Wind  
Wind Speed 5 mph (North)    
Max Wind Speed 8 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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Astronomy

Sep. 14, 2013 Rise Set
Actual Time 6:19 AM EDT 6:50 PM EDT
Civil Twilight 5:51 AM EDT 7:18 PM EDT
Nautical Twilight 5:18 AM EDT 7:51 PM EDT
Astronomical Twilight 4:44 AM EDT 8:25 PM EDT
Moon 3:32 PM EDT (9/14) 12:44 AM EDT (9/14)
Length of Visible Light 13h 27m
Length of Day
12h 31m
Waxing Gibbous, 72% of the Moon is Illuminated
Sep 14
Waxing Gibbous
Sep 19
Full
Sep 26
Last Quarter
Oct 4
New
Oct 11
First Quarter

Hourly Weather History & Observations

Time (EDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:32 AM 64.4 °F 59.0 °F 83% 29.73 in 10.0 mi Variable 6.9 mph - N/A   Overcast
12:52 AM 64.0 °F 59.0 °F 84% 29.74 in 10.0 mi NNW 6.9 mph - N/A   Overcast
1:52 AM 63.0 °F 57.9 °F 84% 29.76 in 10.0 mi NNW 8.1 mph - N/A   Overcast
2:35 AM 62.6 °F 57.2 °F 82% 29.77 in 10.0 mi Variable 6.9 mph - N/A   Overcast
2:52 AM 62.1 °F 57.0 °F 84% 29.77 in 10.0 mi NNW 5.8 mph - N/A   Overcast
3:52 AM 62.1 °F 55.9 °F 80% 29.78 in 10.0 mi NNW 5.8 mph - N/A   Overcast
4:16 AM 60.8 °F 55.4 °F 82% 29.78 in 10.0 mi Variable 4.6 mph - N/A   Scattered Clouds
4:52 AM 60.1 °F 55.9 °F 86% 29.79 in 10.0 mi Calm Calm - N/A   Clear
5:52 AM 60.1 °F 55.9 °F 86% 29.81 in 10.0 mi Calm Calm - N/A   Partly Cloudy
6:52 AM 60.1 °F 55.9 °F 86% 29.83 in 10.0 mi Calm Calm - N/A   Scattered Clouds
7:52 AM 62.1 °F 55.9 °F 80% 29.85 in 10.0 mi NW 6.9 mph - N/A   Mostly Cloudy
8:52 AM 64.0 °F 55.9 °F 75% 29.86 in 10.0 mi Variable 5.8 mph - N/A   Mostly Cloudy
9:52 AM 66.0 °F 55.9 °F 70% 29.89 in 10.0 mi Variable 5.8 mph - N/A   Overcast
10:33 AM 66.2 °F 55.4 °F 68% 29.89 in 10.0 mi Variable 4.6 mph - N/A   Scattered Clouds
10:52 AM 64.9 °F 55.0 °F 70% 29.89 in 10.0 mi Variable 4.6 mph - N/A   Scattered Clouds
10:59 AM 66.2 °F 55.4 °F 68% 29.89 in 10.0 mi Variable 6.9 mph - N/A   Mostly Cloudy
11:36 AM 68.0 °F 55.4 °F 64% 29.90 in 10.0 mi NW 8.1 mph - N/A   Scattered Clouds
11:47 AM 69.8 °F 55.4 °F 60% 29.90 in 10.0 mi Variable 4.6 mph - N/A   Mostly Cloudy
11:52 AM 66.9 °F 55.0 °F 66% 29.91 in 10.0 mi Calm Calm - N/A   Scattered Clouds
12:52 PM 68.0 °F 55.0 °F 63% 29.91 in 10.0 mi WNW 8.1 mph - N/A   Partly Cloudy
1:52 PM 71.1 °F 55.0 °F 57% 29.91 in 10.0 mi WNW 4.6 mph - N/A   Partly Cloudy
2:29 PM 69.8 °F 57.2 °F 64% 29.91 in 10.0 mi SSW 5.8 mph - N/A   Mostly Cloudy
2:52 PM 68.0 °F 55.9 °F 65% 29.91 in 10.0 mi West 5.8 mph - N/A   Overcast
3:11 PM 68.0 °F 57.2 °F 68% 29.91 in 10.0 mi SW 4.6 mph - N/A   Overcast
3:52 PM 66.9 °F 57.0 °F 70% 29.93 in 10.0 mi ENE 5.8 mph - N/A   Mostly Cloudy
4:01 PM 66.2 °F 57.2 °F 73% 29.92 in 10.0 mi NE 5.8 mph - N/A   Overcast
4:43 PM 64.4 °F 57.2 °F 77% 29.94 in 10.0 mi ENE 4.6 mph - N/A   Mostly Cloudy
4:52 PM 66.0 °F 57.0 °F 73% 29.94 in 10.0 mi ENE 3.5 mph - N/A   Mostly Cloudy
5:06 PM 66.2 °F 57.2 °F 73% 29.94 in 10.0 mi ENE 4.6 mph - N/A   Mostly Cloudy
5:44 PM 66.2 °F 57.2 °F 73% 29.96 in 10.0 mi NE 3.5 mph - N/A   Mostly Cloudy
5:52 PM 64.9 °F 57.0 °F 75% 29.96 in 10.0 mi NE 4.6 mph - N/A   Overcast
6:52 PM 64.0 °F 57.9 °F 80% 29.98 in 10.0 mi NE 4.6 mph - N/A   Overcast
7:52 PM 63.0 °F 57.9 °F 84% 30.00 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
8:52 PM 60.1 °F 57.0 °F 90% 30.02 in 10.0 mi Calm Calm - N/A   Clear
9:52 PM 57.0 °F 54.0 °F 89% 30.03 in 10.0 mi Calm Calm - N/A   Clear
10:52 PM 57.9 °F 54.0 °F 87% 30.05 in 10.0 mi Calm Calm - N/A   Partly Cloudy
11:52 PM 57.9 °F 52.0 °F 81% 30.06 in 10.0 mi Calm Calm - N/A   Clear