Weather History for Boston, MA

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Thursday, March 21, 2013

  Actual Average Record
Temperature  
Mean Temperature 33 °F 40 °F  
Max Temperature 35 °F 47 °F 83 °F (1921)
Min Temperature 30 °F 32 °F 7 °F (1885)
Degree Days  
Heating Degree Days 32 26  
Month to date heating degree days 614 591  
Since 1 July heating degree days 4416 4633  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 23 °F    
Average Humidity 68    
Maximum Humidity 92    
Minimum Humidity 43    
Precipitation  
Precipitation 0.02 in 0.15 in 2.50 in (1876)
Month to date precipitation 1.56 2.85  
Year to date precipitation 7.90 9.46  
Snow  
Snow 0.30 in 0.20 in 4.20 in (1958)
Month to date snowfall 20.6 6.1  
Since 1 July snowfall 63.4 40.2  
Snow Depth -    
Sea Level Pressure  
Sea Level Pressure 29.70 in    
Wind  
Wind Speed 6 mph (NE)    
Max Wind Speed 12 mph    
Max Gust Speed 16 mph    
Visibility 8 miles    
Events Snow    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Mar. 21, 2013 Rise Set
Actual Time 6:45 AM EDT 6:57 PM EDT
Civil Twilight 6:17 AM EDT 7:25 PM EDT
Nautical Twilight 5:44 AM EDT 7:58 PM EDT
Astronomical Twilight 5:10 AM EDT 8:32 PM EDT
Moon 1:18 PM EDT (3/21) 3:10 AM EDT (3/21)
Length of Visible Light 13h 08m
Length of Day
12h 12m
Waxing Gibbous, 68% of the Moon is Illuminated
Mar 21
Waxing Gibbous
Mar 27
Full
Apr 3
Last Quarter
Apr 10
New
Apr 18
First Quarter

Hourly Weather History & Observations

Time (EDT) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:54 AM 32.0 °F 27.5 °F 18.0 °F 56% 29.81 in 10.0 mi West 4.6 mph - N/A   Partly Cloudy
1:54 AM 32.0 °F 26.4 °F 18.0 °F 56% 29.83 in 10.0 mi WSW 5.8 mph - N/A   Clear
2:54 AM 30.0 °F 22.4 °F 18.0 °F 61% 29.82 in 10.0 mi SW 8.1 mph - N/A   Scattered Clouds
3:54 AM 32.0 °F 23.6 °F 16.0 °F 52% 29.80 in 10.0 mi WNW 10.4 mph - N/A   Mostly Cloudy
4:54 AM 30.9 °F 23.5 °F 17.1 °F 57% 29.79 in 10.0 mi WNW 8.1 mph - N/A   Overcast
5:54 AM 30.9 °F 25.2 °F 17.1 °F 57% 29.79 in 10.0 mi NW 5.8 mph - N/A   Overcast
6:54 AM 30.9 °F 23.5 °F 17.1 °F 57% 29.80 in 10.0 mi NW 8.1 mph - N/A   Overcast
7:54 AM 30.9 °F 25.2 °F 18.0 °F 59% 29.79 in 10.0 mi NW 5.8 mph - N/A   Scattered Clouds
8:54 AM 33.1 °F 26.9 °F 18.0 °F 54% 29.79 in 10.0 mi NW 6.9 mph - N/A   Scattered Clouds
9:54 AM 33.1 °F 28.7 °F 15.1 °F 48% 29.78 in 10.0 mi Variable 4.6 mph - N/A   Scattered Clouds
10:54 AM 33.1 °F - 14.0 °F 46% 29.77 in 10.0 mi Calm Calm - N/A   Overcast
11:54 AM 33.1 °F 30.0 °F 16.0 °F 50% 29.75 in 10.0 mi ESE 3.5 mph - N/A   Overcast
12:54 PM 34.0 °F 26.6 °F 18.0 °F 52% 29.72 in 10.0 mi NNW 9.2 mph - 0.00 in   Overcast
1:54 PM 33.1 °F - 21.9 °F 64% 29.70 in 10.0 mi Calm Calm - 0.00 in   Overcast
2:54 PM 33.1 °F 30.0 °F 23.0 °F 66% 29.66 in 7.0 mi NE 3.5 mph - 0.00 in Snow Light Snow
3:54 PM 33.1 °F 25.5 °F 23.0 °F 66% 29.64 in 10.0 mi ESE 9.2 mph - 0.00 in   Overcast
4:54 PM 32.0 °F 24.2 °F 24.1 °F 73% 29.63 in 9.0 mi ESE 9.2 mph - 0.00 in Snow Light Snow
5:51 PM 30.2 °F 26.7 °F 24.8 °F 80% 29.63 in 3.0 mi East 3.5 mph - 0.00 in Snow Light Snow
5:54 PM 30.9 °F 26.2 °F 25.0 °F 79% 29.64 in 3.0 mi East 4.6 mph - 0.00 in Snow Light Snow
6:24 PM 30.2 °F 26.7 °F 26.6 °F 86% 29.64 in 3.0 mi East 3.5 mph - 0.00 in Snow Light Snow
6:32 PM 30.2 °F 25.4 °F 26.6 °F 86% 29.64 in 2.5 mi ENE 4.6 mph - 0.00 in Snow Light Snow
6:54 PM 30.9 °F 27.5 °F 26.1 °F 82% 29.65 in 2.5 mi East 3.5 mph - 0.00 in Snow Light Snow
7:25 PM 30.2 °F - 26.6 °F 86% 29.64 in 2.5 mi Calm Calm - 0.00 in Snow Light Snow
7:37 PM 30.2 °F 26.7 °F 26.6 °F 86% 29.64 in 1.5 mi East 3.5 mph - 0.01 in Snow Light Snow
7:54 PM 30.0 °F 25.2 °F 27.0 °F 88% 29.65 in 1.8 mi ESE 4.6 mph - 0.01 in Snow Light Snow
8:15 PM 30.2 °F 24.3 °F 26.6 °F 86% 29.65 in 2.0 mi ESE 5.8 mph - 0.01 in Snow Light Snow
8:20 PM 30.2 °F 24.3 °F 26.6 °F 86% 29.65 in 1.8 mi ESE 5.8 mph - 0.01 in Snow Light Snow
8:37 PM 30.2 °F 23.4 °F 26.6 °F 86% 29.64 in 2.0 mi ESE 6.9 mph - 0.01 in Snow Light Snow
8:50 PM 30.2 °F 24.3 °F 26.6 °F 86% 29.64 in 2.0 mi East 5.8 mph - 0.01 in Snow Light Snow
8:54 PM 30.9 °F 25.2 °F 28.0 °F 89% 29.64 in 5.0 mi ESE 5.8 mph - 0.01 in Snow Light Snow
9:49 PM 30.2 °F - 28.4 °F 93% 29.63 in 10.0 mi Calm Calm - 0.00 in   Overcast
9:54 PM 32.0 °F - 28.9 °F 88% 29.63 in 10.0 mi Calm Calm - 0.00 in   Overcast
10:06 PM 32.0 °F - 28.4 °F 87% 29.64 in 10.0 mi Calm Calm - N/A   Overcast
10:54 PM 32.0 °F 28.7 °F 28.0 °F 85% 29.63 in 10.0 mi WNW 3.5 mph - N/A   Overcast
11:08 PM 32.0 °F 27.5 °F 26.6 °F 80% 29.63 in 10.0 mi WNW 4.6 mph - N/A   Overcast
11:16 PM 32.0 °F 26.4 °F 26.6 °F 80% 29.63 in 10.0 mi WNW 5.8 mph - N/A   Overcast
11:54 PM 32.0 °F 26.4 °F 27.0 °F 82% 29.62 in 10.0 mi WNW 5.8 mph - N/A   Overcast