Weather History for Chatham, MA

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Wednesday, November 21, 2012

  Actual Average Record
Temperature  
Mean Temperature 10 °C -  
Max Temperature 12 °C 8 °C 15 °C (1999)
Min Temperature 8 °C 2 °C -5 °C (1989)
Degree Days  
Heating Degree Days 16    
Moisture  
Dew Point 5 °C    
Average Humidity 74    
Maximum Humidity 83    
Minimum Humidity 61    
Precipitation  
Precipitation 0.00 mm - - ()
Sea Level Pressure  
Sea Level Pressure 1022 hPa    
Wind  
Wind Speed 13 km/h (NE)    
Max Wind Speed 19 km/h    
Max Gust Speed 32 km/h    
Visibility 16 kilometers    
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 8.3 °C 3.3 °C 71% 1020.3 hPa 16.1 km NE 14.8 km/h / 4.1 m/s - N/A   Partly Cloudy
1:52 AM 8.3 °C 2.8 °C 68% 1020.4 hPa 16.1 km ENE 14.8 km/h / 4.1 m/s - N/A   Clear
2:52 AM 8.3 °C 2.2 °C 66% 1020.4 hPa 16.1 km NE 11.1 km/h / 3.1 m/s - N/A   Clear
3:52 AM 8.3 °C 2.2 °C 66% 1020.7 hPa 16.1 km NE 9.3 km/h / 2.6 m/s - N/A   Clear
4:52 AM 8.3 °C 3.3 °C 71% 1020.6 hPa 16.1 km NE 11.1 km/h / 3.1 m/s - N/A   Clear
5:52 AM 8.3 °C 3.3 °C 71% 1021.0 hPa 16.1 km NE 9.3 km/h / 2.6 m/s - N/A   Partly Cloudy
6:52 AM 8.9 °C 3.3 °C 68% 1021.6 hPa 16.1 km NE 5.6 km/h / 1.5 m/s - N/A   Clear
7:52 AM 9.4 °C 4.4 °C 71% 1021.8 hPa 16.1 km Variable 9.3 km/h / 2.6 m/s - N/A   Partly Cloudy
8:52 AM 10.0 °C 3.9 °C 66% 1022.1 hPa 16.1 km NE 16.7 km/h / 4.6 m/s 29.6 km/h / 8.2 m/s N/A   Partly Cloudy
9:32 AM 11.0 °C 4.0 °C 62% 1022.2 hPa 16.1 km NE 16.7 km/h / 4.6 m/s - N/A   Mostly Cloudy
9:48 AM 11.0 °C 4.0 °C 62% 1022.2 hPa 16.1 km ENE 16.7 km/h / 4.6 m/s 29.6 km/h / 8.2 m/s N/A   Scattered Clouds
9:52 AM 11.1 °C 3.9 °C 61% 1022.4 hPa 16.1 km NE 14.8 km/h / 4.1 m/s 25.9 km/h / 7.2 m/s N/A   Scattered Clouds
11:52 AM 11.1 °C 4.4 °C 63% 1022.1 hPa 16.1 km NE 14.8 km/h / 4.1 m/s - N/A   Partly Cloudy
12:52 PM 11.1 °C 5.6 °C 69% 1021.8 hPa 16.1 km NE 13.0 km/h / 3.6 m/s 31.5 km/h / 8.7 m/s N/A   Clear
1:52 PM 11.7 °C 5.6 °C 66% 1021.3 hPa 16.1 km NE 14.8 km/h / 4.1 m/s - N/A   Clear
2:52 PM 11.1 °C 6.7 °C 74% 1021.6 hPa 16.1 km NE 18.5 km/h / 5.1 m/s - N/A   Mostly Cloudy
3:00 PM 11.0 °C 7.0 °C 76% 1021.6 hPa 16.1 km NE 14.8 km/h / 4.1 m/s 27.8 km/h / 7.7 m/s N/A   Mostly Cloudy
3:52 PM 10.0 °C 6.7 °C 80% 1021.8 hPa 16.1 km NNE 11.1 km/h / 3.1 m/s - N/A   Mostly Cloudy
4:19 PM 10.0 °C 7.0 °C 82% 1021.6 hPa 16.1 km NNE 7.4 km/h / 2.1 m/s - N/A   Overcast
4:50 PM 10.0 °C 7.0 °C 82% 1021.9 hPa 16.1 km NE 13.0 km/h / 3.6 m/s - N/A   Overcast
4:52 PM 10.0 °C 7.2 °C 83% 1022.1 hPa 16.1 km NE 11.1 km/h / 3.1 m/s - N/A   Overcast
5:12 PM 10.0 °C 7.0 °C 82% 1022.2 hPa 16.1 km NE 13.0 km/h / 3.6 m/s - N/A   Overcast
5:52 PM 10.0 °C 7.2 °C 83% 1022.7 hPa 16.1 km ENE 16.7 km/h / 4.6 m/s - N/A   Overcast
6:22 PM 10.0 °C 7.0 °C 82% 1022.9 hPa 16.1 km NE 14.8 km/h / 4.1 m/s - N/A   Overcast
6:52 PM 10.0 °C 7.2 °C 83% 1023.1 hPa 16.1 km NE 14.8 km/h / 4.1 m/s - N/A   Overcast
7:52 PM 10.0 °C 6.1 °C 77% 1023.4 hPa 16.1 km NE 11.1 km/h / 3.1 m/s - N/A   Mostly Cloudy
8:52 PM 10.0 °C 6.1 °C 77% 1023.5 hPa 16.1 km NE 13.0 km/h / 3.6 m/s - N/A   Mostly Cloudy
9:52 PM 9.4 °C 6.7 °C 83% 1023.5 hPa 16.1 km ENE 13.0 km/h / 3.6 m/s - N/A   Overcast
10:52 PM 9.4 °C 6.1 °C 80% 1023.1 hPa 16.1 km NE 9.3 km/h / 2.6 m/s - N/A   Partly Cloudy
11:52 PM 9.4 °C 6.1 °C 80% 1023.2 hPa 16.1 km ENE 13.0 km/h / 3.6 m/s - N/A   Scattered Clouds