Weather History for Boston, MA

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Sunday, December 4, 2011

  Actual Average Record
Temperature  
Mean Temperature 44 °F 39 °F  
Max Temperature 53 °F 45 °F 70 °F (1982)
Min Temperature 35 °F 32 °F 2 °F (1940)
Degree Days  
Heating Degree Days 21 26  
Month to date heating degree days 89 103  
Since 1 July heating degree days 814 1158  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 1007 747  
Moisture  
Dew Point 38 °F    
Average Humidity 79    
Maximum Humidity 93    
Minimum Humidity 64    
Precipitation  
Precipitation 0.00 in 0.14 in 2.15 in (1968)
Month to date precipitation 0.00 0.53  
Year to date precipitation 48.43 40.52  
Snow  
Snow 0.00 in 0.20 in 6.00 in (1901)
Month to date snowfall 0.0 0.7  
Since 1 July snowfall 1.0 2.0  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.50 in    
Wind  
Wind Speed 9 mph (SSW)    
Max Wind Speed 18 mph    
Max Gust Speed 26 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Dec. 04, 2011 Rise Set
Actual Time 6:56 AM EST 4:11 PM EST
Civil Twilight 6:24 AM EST 4:43 PM EST
Nautical Twilight 5:49 AM EST 5:18 PM EST
Astronomical Twilight 5:15 AM EST 5:52 PM EST
Moon 12:45 PM EST (12/4) 1:13 AM EST (12/4)
Length of Visible Light 10h 18m
Length of Day
9h 15m
Waxing Gibbous, 71% of the Moon is Illuminated
Dec 4
Waxing Gibbous
Dec 10
Full
Dec 17
Last Quarter
Dec 24
New
Jan 1
First Quarter

Hourly Weather History & Observations

Time (EST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:54 AM 37.0 °F 31.0 °F 30.9 °F 79% 30.62 in 10.0 mi SSW 8.1 mph - N/A   Scattered Clouds
1:54 AM 35.1 °F 30.1 °F 30.0 °F 82% 30.61 in 10.0 mi South 5.8 mph - N/A   Scattered Clouds
2:54 AM 36.0 °F 33.3 °F 30.9 °F 82% 30.62 in 10.0 mi SSW 3.5 mph - N/A   Scattered Clouds
3:54 AM 35.1 °F 29.3 °F 30.9 °F 85% 30.61 in 10.0 mi South 6.9 mph - N/A   Mostly Cloudy
4:54 AM 35.1 °F 31.0 °F 30.0 °F 82% 30.60 in 10.0 mi South 4.6 mph - N/A   Mostly Cloudy
5:54 AM 36.0 °F 32.1 °F 30.9 °F 82% 30.60 in 10.0 mi SSW 4.6 mph - N/A   Scattered Clouds
6:54 AM 36.0 °F - 30.0 °F 79% 30.60 in 10.0 mi Calm Calm - N/A   Partly Cloudy
7:54 AM 39.0 °F 35.7 °F 33.1 °F 79% 30.59 in 10.0 mi SSW 4.6 mph - N/A   Mostly Cloudy
8:54 AM 39.9 °F 35.1 °F 35.1 °F 83% 30.60 in 10.0 mi South 6.9 mph - N/A   Mostly Cloudy
9:54 AM 44.1 °F 39.0 °F 37.9 °F 79% 30.57 in 10.0 mi South 9.2 mph - N/A   Mostly Cloudy
10:54 AM 46.9 °F - 39.9 °F 77% 30.55 in 10.0 mi South 11.5 mph - N/A   Mostly Cloudy
11:14 AM 46.4 °F 41.5 °F 39.2 °F 76% 30.53 in 10.0 mi South 10.4 mph - N/A   Mostly Cloudy
11:33 AM 48.2 °F - 39.2 °F 71% 30.52 in 10.0 mi South 10.4 mph - N/A   Partly Cloudy
11:54 AM 50.0 °F - 39.9 °F 68% 30.51 in 10.0 mi SSW 12.7 mph - N/A   Mostly Cloudy
12:54 PM 51.1 °F - 41.0 °F 68% 30.48 in 10.0 mi SSW 12.7 mph - N/A   Mostly Cloudy
1:28 PM 51.8 °F - 41.0 °F 67% 30.46 in 10.0 mi SW 17.3 mph - N/A   Overcast
1:54 PM 53.1 °F - 41.0 °F 64% 30.45 in 10.0 mi SSW 15.0 mph 21.9 mph N/A   Mostly Cloudy
2:54 PM 52.0 °F - 41.0 °F 66% 30.43 in 10.0 mi SSW 13.8 mph - N/A   Mostly Cloudy
3:54 PM 51.1 °F - 41.0 °F 68% 30.43 in 10.0 mi SSW 11.5 mph - N/A   Scattered Clouds
4:54 PM 50.0 °F - 42.1 °F 74% 30.42 in 10.0 mi South 12.7 mph - N/A   Scattered Clouds
5:54 PM 48.9 °F - 43.0 °F 80% 30.42 in 10.0 mi South 8.1 mph - N/A   Partly Cloudy
6:54 PM 46.9 °F - 43.0 °F 86% 30.42 in 10.0 mi SSW 9.2 mph - N/A   Partly Cloudy
7:54 PM 48.0 °F - 44.1 °F 86% 30.42 in 10.0 mi SW 11.5 mph - N/A   Scattered Clouds
8:54 PM 46.9 °F - 44.1 °F 90% 30.42 in 10.0 mi SW 10.4 mph - N/A   Scattered Clouds
9:54 PM 46.9 °F - 44.1 °F 90% 30.40 in 10.0 mi SSW 12.7 mph - N/A   Mostly Cloudy
10:54 PM 46.9 °F - 44.1 °F 90% 30.39 in 10.0 mi SW 11.5 mph - N/A   Scattered Clouds
11:45 PM 46.4 °F 42.4 °F 44.6 °F 93% 30.40 in 10.0 mi WSW 8.1 mph - N/A   Mostly Cloudy
11:54 PM 46.9 °F - 44.1 °F 90% 30.40 in 10.0 mi SW 8.1 mph - N/A   Mostly Cloudy