Weather History for Boston, MA

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Friday, January 13, 2012

  Actual Average Record
Temperature  
Mean Temperature 43 °F 29 °F  
Max Temperature 54 °F 36 °F 63 °F (1932)
Min Temperature 31 °F 22 °F -9 °F (1914)
Degree Days  
Heating Degree Days 22 36  
Month to date heating degree days 373 464  
Since 1 July heating degree days 1864 2458  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 31 °F    
Average Humidity 73    
Maximum Humidity 100    
Minimum Humidity 45    
Precipitation  
Precipitation 0.05 in 0.11 in 1.36 in (1979)
Month to date precipitation 1.01 1.43  
Year to date precipitation 1.01 1.43  
Snow  
Snow 0.00 in 0.40 in 11.00 in (1938)
Month to date snowfall 0.5 5.5  
Since 1 July snowfall 1.5 15.8  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 29.41 in    
Wind  
Wind Speed 18 mph (South)    
Max Wind Speed 40 mph    
Max Gust Speed 51 mph    
Visibility 7 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Jan. 13, 2012 Rise Set
Actual Time 7:11 AM EST 4:33 PM EST
Civil Twilight 6:40 AM EST 5:05 PM EST
Nautical Twilight 6:05 AM EST 5:39 PM EST
Astronomical Twilight 5:31 AM EST 6:13 PM EST
Moon 9:50 PM EST (1/13) 9:17 AM EST (1/13)
Length of Visible Light 10h 24m
Length of Day
9h 22m
Waning Gibbous, 79% of the Moon is Illuminated
Jan 13
Waning Gibbous
Jan 16
Last Quarter
Jan 23
New
Jan 30
First Quarter
Feb 7
Full

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 33.1 °F 26.9 °F 30.0 °F 89% 29.57 in 6.0 mi ENE 6.9 mph - N/A   Overcast
1:54 AM 34.0 °F 31.0 °F 32.0 °F 92% 29.57 in 10.0 mi NE 3.5 mph - N/A   Overcast
2:54 AM 35.1 °F 31.0 °F 33.1 °F 92% 29.57 in 10.0 mi East 4.6 mph - N/A   Overcast
3:54 AM 36.0 °F - 34.0 °F 93% 29.55 in 10.0 mi Calm Calm - N/A   Overcast
4:17 AM 33.8 °F 27.0 °F 32.0 °F 93% 29.54 in 3.0 mi NNE 8.1 mph - N/A   Overcast
4:29 AM 33.8 °F 27.0 °F 32.0 °F 93% 29.53 in 1.0 mi NNE 8.1 mph - N/A   Overcast
4:54 AM 34.0 °F 28.8 °F 32.0 °F 92% 29.53 in 0.5 mi NNE 5.8 mph - N/A   Overcast
5:54 AM 35.1 °F 30.1 °F 33.1 °F 92% 29.50 in 0.5 mi NE 5.8 mph - N/A   Overcast
6:54 AM 39.9 °F 32.9 °F 39.0 °F 97% 29.45 in 0.5 mi East 11.5 mph - N/A   Overcast
7:06 AM 39.2 °F 31.6 °F 39.2 °F 100% 29.43 in 1.0 mi East 12.7 mph - 0.00 in Rain Light Rain
7:54 AM 41.0 °F 34.3 °F 39.9 °F 96% 29.39 in 1.0 mi East 11.5 mph - 0.02 in Rain Light Rain
8:54 AM 42.1 °F 35.7 °F 41.0 °F 96% 29.34 in 0.2 mi ESE 11.5 mph - 0.01 in   Overcast
9:36 AM 44.6 °F 40.2 °F 42.8 °F 93% 29.31 in 1.0 mi SE 8.1 mph - 0.00 in Rain Light Rain
9:54 AM 48.0 °F - 46.0 °F 93% 29.29 in 1.0 mi SSE 11.5 mph - 0.00 in   Overcast
10:03 AM 48.2 °F - 46.4 °F 93% 29.29 in 10.0 mi South 15.0 mph - N/A   Mostly Cloudy
10:39 AM 51.8 °F - 48.2 °F 88% 29.23 in 10.0 mi SSE 11.5 mph - N/A   Scattered Clouds
10:54 AM 51.1 °F - 46.9 °F 86% 29.22 in 9.0 mi South 13.8 mph - 0.00 in Rain Light Rain
11:54 AM 52.0 °F - 39.0 °F 61% 29.17 in 10.0 mi SW 31.1 mph 44.9 mph 0.02 in   Mostly Cloudy
12:54 PM 48.9 °F - 30.0 °F 48% 29.18 in 10.0 mi WSW 28.8 mph 46.0 mph N/A   Scattered Clouds
1:54 PM 46.9 °F - 28.0 °F 48% 29.18 in 10.0 mi SW 31.1 mph 46.0 mph N/A   Scattered Clouds
2:54 PM 44.1 °F 33.7 °F 25.0 °F 47% 29.21 in 10.0 mi WSW 32.2 mph 41.4 mph N/A   Scattered Clouds
3:54 PM 39.9 °F 28.4 °F 21.9 °F 49% 29.27 in 10.0 mi WSW 29.9 mph 39.1 mph N/A   Mostly Cloudy
4:54 PM 36.0 °F 23.5 °F 19.0 °F 50% 29.36 in 10.0 mi WSW 27.6 mph 47.2 mph N/A   Mostly Cloudy
5:54 PM 33.1 °F 19.1 °F 16.0 °F 50% 29.41 in 10.0 mi WSW 29.9 mph 39.1 mph N/A   Mostly Cloudy
6:54 PM 32.0 °F 18.9 °F 14.0 °F 48% 29.45 in 10.0 mi WSW 24.2 mph 35.7 mph N/A   Scattered Clouds
7:54 PM 32.0 °F 17.9 °F 14.0 °F 48% 29.48 in 10.0 mi WSW 28.8 mph 39.1 mph N/A   Overcast
8:54 PM 30.9 °F 18.7 °F 14.0 °F 50% 29.51 in 10.0 mi WSW 19.6 mph 31.1 mph N/A   Scattered Clouds
9:54 PM 32.0 °F 18.9 °F 15.1 °F 50% 29.53 in 10.0 mi WSW 24.2 mph 32.2 mph N/A   Scattered Clouds
10:54 PM 30.9 °F 17.8 °F 16.0 °F 54% 29.56 in 10.0 mi WSW 23.0 mph 29.9 mph N/A   Partly Cloudy
11:54 PM 30.9 °F 18.1 °F 17.1 °F 57% 29.58 in 10.0 mi WSW 21.9 mph 32.2 mph N/A   Scattered Clouds