Weather History for Chatham, MA

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Tuesday, September 10, 2013

  Actual Average Record
Temperature  
Mean Temperature 68 °F -  
Max Temperature 73 °F 70 °F 80 °F (1989)
Min Temperature 63 °F 57 °F 46 °F (2003)
Cooling Degree Days 3    
Growing Degree Days 18 (Base 50)    
Moisture  
Dew Point 60 °F    
Average Humidity 76    
Maximum Humidity 90    
Minimum Humidity 65    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.15 in    
Wind  
Wind Speed 10 mph (SW)    
Max Wind Speed 15 mph    
Max Gust Speed 26 mph    
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. 10, 2013 Rise Set
Actual Time 6:15 AM EDT 6:57 PM EDT
Civil Twilight 5:47 AM EDT 7:25 PM EDT
Nautical Twilight 5:13 AM EDT 7:58 PM EDT
Astronomical Twilight 4:39 AM EDT 8:33 PM EDT
Moon 11:42 AM EDT (9/10) 9:53 PM EDT (9/10)
Length of Visible Light 13h 38m
Length of Day
12h 42m
Waxing Crescent, 28% of the Moon is Illuminated
Sep 10
Waxing Crescent
Sep 12
First Quarter
Sep 19
Full
Sep 26
Last Quarter
Oct 4
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 63.0 °F 51.1 °F 65% 30.21 in 10.0 mi SW 9.2 mph 19.6 mph N/A   Clear
1:52 AM 63.0 °F 52.0 °F 67% 30.21 in 10.0 mi SW 10.4 mph 16.1 mph N/A   Clear
2:52 AM 63.0 °F 51.1 °F 65% 30.20 in 10.0 mi SW 10.4 mph 23.0 mph N/A   Clear
3:52 AM 63.0 °F 52.0 °F 67% 30.20 in 10.0 mi SW 6.9 mph - N/A   Clear
4:52 AM 64.0 °F 53.1 °F 67% 30.20 in 10.0 mi SSW 9.2 mph 17.3 mph N/A   Clear
5:52 AM 64.0 °F 55.9 °F 75% 30.19 in 10.0 mi SSW 8.1 mph - N/A   Mostly Cloudy
6:52 AM 64.0 °F 57.9 °F 80% 30.20 in 10.0 mi Variable 5.8 mph - N/A   Overcast
7:52 AM 64.9 °F 57.9 °F 78% 30.19 in 10.0 mi SSW 8.1 mph - N/A   Overcast
8:52 AM 66.0 °F 59.0 °F 78% 30.20 in 10.0 mi SSW 6.9 mph - N/A   Overcast
9:52 AM 69.1 °F 59.0 °F 70% 30.21 in 10.0 mi SW 9.2 mph 20.7 mph N/A   Overcast
10:52 AM 68.0 °F 61.0 °F 78% 30.19 in 10.0 mi SSW 8.1 mph 16.1 mph N/A   Overcast
11:52 AM 70.0 °F 60.1 °F 71% 30.19 in 10.0 mi SW 12.7 mph 20.7 mph N/A   Overcast
12:19 PM 69.8 °F 60.8 °F 73% 30.17 in 10.0 mi SSW 9.2 mph 19.6 mph N/A   Overcast
12:52 PM 70.0 °F 61.0 °F 73% 30.17 in 10.0 mi SW 10.4 mph 23.0 mph N/A   Overcast
1:52 PM 71.1 °F 63.0 °F 75% 30.12 in 10.0 mi SSW 11.5 mph 21.9 mph N/A   Overcast
2:32 PM 71.6 °F 62.6 °F 73% 30.09 in 10.0 mi SSW 15.0 mph 26.5 mph N/A   Scattered Clouds
2:52 PM 70.0 °F 62.1 °F 76% 30.10 in 10.0 mi SSW 13.8 mph 24.2 mph N/A   Scattered Clouds
3:16 PM 71.6 °F 62.6 °F 73% 30.09 in 10.0 mi SW 10.4 mph 23.0 mph N/A   Mostly Cloudy
3:47 PM 73.4 °F 62.6 °F 69% 30.11 in 10.0 mi SSW 12.7 mph 23.0 mph N/A   Scattered Clouds
3:52 PM 72.0 °F 63.0 °F 73% 30.12 in 10.0 mi SW 13.8 mph 21.9 mph N/A   Scattered Clouds
4:01 PM 71.6 °F 62.6 °F 73% 30.12 in 10.0 mi SW 11.5 mph 20.7 mph N/A   Mostly Cloudy
4:52 PM 70.0 °F 64.0 °F 81% 30.12 in 10.0 mi SW 6.9 mph 19.6 mph N/A   Overcast
5:52 PM 70.0 °F 64.0 °F 81% 30.12 in 10.0 mi SW 10.4 mph 17.3 mph N/A   Overcast
6:32 PM 69.8 °F 64.4 °F 83% 30.11 in 10.0 mi SSW 8.1 mph 19.6 mph N/A   Overcast
6:52 PM 69.1 °F 64.0 °F 84% 30.12 in 10.0 mi SW 9.2 mph - N/A   Overcast
7:52 PM 68.0 °F 64.9 °F 90% 30.12 in 10.0 mi SW 8.1 mph - N/A   Scattered Clouds
8:52 PM 69.1 °F 64.0 °F 84% 30.13 in 10.0 mi SW 10.4 mph 18.4 mph N/A   Overcast
9:52 PM 69.1 °F 64.0 °F 84% 30.13 in 10.0 mi SW 10.4 mph 17.3 mph N/A   Partly Cloudy
10:52 PM 69.1 °F 64.9 °F 87% 30.14 in 10.0 mi SW 6.9 mph - N/A   Clear
11:38 PM 69.8 °F 64.4 °F 83% 30.13 in 10.0 mi SW 8.1 mph - N/A   Mostly Cloudy
11:52 PM 69.1 °F 64.9 °F 87% 30.13 in 10.0 mi SW 10.4 mph - N/A   Overcast