Weather History for Chatham, MA

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Wednesday, November 21, 2012

  Actual Average Record
Temperature  
Mean Temperature 50 °F -  
Max Temperature 53 °F 47 °F 60 °F (1999)
Min Temperature 46 °F 36 °F 23 °F (1989)
Degree Days  
Heating Degree Days 16    
Moisture  
Dew Point 41 °F    
Average Humidity 74    
Maximum Humidity 83    
Minimum Humidity 61    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.18 in    
Wind  
Wind Speed 8 mph (NE)    
Max Wind Speed 12 mph    
Max Gust Speed 20 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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Date:

Astronomy

Nov. 21, 2012 Rise Set
Actual Time 6:36 AM EST 4:14 PM EST
Civil Twilight 6:06 AM EST 4:45 PM EST
Nautical Twilight 5:32 AM EST 5:19 PM EST
Astronomical Twilight 4:59 AM EST 5:52 PM EST
Moon 12:34 PM EST (11/21) No Moon Set
Length of Visible Light 10h 38m
Length of Day
9h 37m
First Quarter, 61% of the Moon is Illuminated
Nov 21
First Quarter
Nov 28
Full
Dec 6
Last Quarter
Dec 13
New
Dec 20
First Quarter

Hourly Weather History & Observations

Time (EST) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:52 AM 46.9 °F 37.9 °F 71% 30.13 in 10.0 mi NE 9.2 mph - N/A   Partly Cloudy
1:52 AM 46.9 °F 37.0 °F 68% 30.14 in 10.0 mi ENE 9.2 mph - N/A   Clear
2:52 AM 46.9 °F 36.0 °F 66% 30.14 in 10.0 mi NE 6.9 mph - N/A   Clear
3:52 AM 46.9 °F 36.0 °F 66% 30.14 in 10.0 mi NE 5.8 mph - N/A   Clear
4:52 AM 46.9 °F 37.9 °F 71% 30.14 in 10.0 mi NE 6.9 mph - N/A   Clear
5:52 AM 46.9 °F 37.9 °F 71% 30.15 in 10.0 mi NE 5.8 mph - N/A   Partly Cloudy
6:52 AM 48.0 °F 37.9 °F 68% 30.17 in 10.0 mi NE 3.5 mph - N/A   Clear
7:52 AM 48.9 °F 39.9 °F 71% 30.18 in 10.0 mi Variable 5.8 mph - N/A   Partly Cloudy
8:52 AM 50.0 °F 39.0 °F 66% 30.19 in 10.0 mi NE 10.4 mph 18.4 mph N/A   Partly Cloudy
9:32 AM 51.8 °F 39.2 °F 62% 30.19 in 10.0 mi NE 10.4 mph - N/A   Mostly Cloudy
9:48 AM 51.8 °F 39.2 °F 62% 30.19 in 10.0 mi ENE 10.4 mph 18.4 mph N/A   Scattered Clouds
9:52 AM 52.0 °F 39.0 °F 61% 30.19 in 10.0 mi NE 9.2 mph 16.1 mph N/A   Scattered Clouds
11:52 AM 52.0 °F 39.9 °F 63% 30.19 in 10.0 mi NE 9.2 mph - N/A   Partly Cloudy
12:52 PM 52.0 °F 42.1 °F 69% 30.18 in 10.0 mi NE 8.1 mph 19.6 mph N/A   Clear
1:52 PM 53.1 °F 42.1 °F 66% 30.16 in 10.0 mi NE 9.2 mph - N/A   Clear
2:52 PM 52.0 °F 44.1 °F 74% 30.17 in 10.0 mi NE 11.5 mph - N/A   Mostly Cloudy
3:00 PM 51.8 °F 44.6 °F 76% 30.17 in 10.0 mi NE 9.2 mph 17.3 mph N/A   Mostly Cloudy
3:52 PM 50.0 °F 44.1 °F 80% 30.18 in 10.0 mi NNE 6.9 mph - N/A   Mostly Cloudy
4:19 PM 50.0 °F 44.6 °F 82% 30.17 in 10.0 mi NNE 4.6 mph - N/A   Overcast
4:50 PM 50.0 °F 44.6 °F 82% 30.18 in 10.0 mi NE 8.1 mph - N/A   Overcast
4:52 PM 50.0 °F 45.0 °F 83% 30.19 in 10.0 mi NE 6.9 mph - N/A   Overcast
5:12 PM 50.0 °F 44.6 °F 82% 30.19 in 10.0 mi NE 8.1 mph - N/A   Overcast
5:52 PM 50.0 °F 45.0 °F 83% 30.20 in 10.0 mi ENE 10.4 mph - N/A   Overcast
6:22 PM 50.0 °F 44.6 °F 82% 30.21 in 10.0 mi NE 9.2 mph - N/A   Overcast
6:52 PM 50.0 °F 45.0 °F 83% 30.22 in 10.0 mi NE 9.2 mph - N/A   Overcast
7:52 PM 50.0 °F 43.0 °F 77% 30.22 in 10.0 mi NE 6.9 mph - N/A   Mostly Cloudy
8:52 PM 50.0 °F 43.0 °F 77% 30.23 in 10.0 mi NE 8.1 mph - N/A   Mostly Cloudy
9:52 PM 48.9 °F 44.1 °F 83% 30.23 in 10.0 mi ENE 8.1 mph - N/A   Overcast
10:52 PM 48.9 °F 43.0 °F 80% 30.22 in 10.0 mi NE 5.8 mph - N/A   Partly Cloudy
11:52 PM 48.9 °F 43.0 °F 80% 30.22 in 10.0 mi ENE 8.1 mph - N/A   Scattered Clouds