Weather History for Boston, MA

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Monday, February 28, 2011

  Actual Average Record
Temperature  
Mean Temperature 36 °F 34 °F  
Max Temperature 46 °F 41 °F 63 °F (1976)
Min Temperature 25 °F 27 °F 2 °F (1907)
Degree Days  
Heating Degree Days 29 31  
Month to date heating degree days 959 931  
Since 1 July heating degree days 4034 4042  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 32 °F    
Average Humidity 84    
Maximum Humidity 92    
Minimum Humidity 76    
Precipitation  
Precipitation 0.63 in 0.13 in 2.01 in (1958)
Month to date precipitation 4.57 3.25  
Year to date precipitation 9.14 6.61  
Sea Level Pressure  
Sea Level Pressure 29.74 in    
Wind  
Wind Speed 9 mph (NW)    
Max Wind Speed 25 mph    
Max Gust Speed 32 mph    
Visibility 6 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Feb. 28, 2011 Rise Set
Actual Time 6:21 AM EST 5:32 PM EST
Civil Twilight 5:53 AM EST 6:00 PM EST
Nautical Twilight 5:20 AM EST 6:33 PM EST
Astronomical Twilight 4:48 AM EST 7:05 PM EST
Moon 3:56 AM EST (2/28) 1:40 PM EST (2/28)
Length of Visible Light 12h 07m
Length of Day
11h 10m
Waning Crescent, 15% of the Moon is Illuminated
Feb 28
Waning Crescent
Mar 4
New
Mar 12
First Quarter
Mar 19
Full
Mar 26
Last 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 25.0 °F 19.3 °F 19.9 °F 81% 30.16 in 10.0 mi North 4.6 mph - N/A   Overcast
1:54 AM 25.0 °F 19.3 °F 21.0 °F 85% 30.16 in 10.0 mi NW 4.6 mph - N/A   Overcast
2:54 AM 27.0 °F 21.6 °F 21.9 °F 81% 30.15 in 10.0 mi WNW 4.6 mph - N/A   Overcast
3:54 AM 27.0 °F - 23.0 °F 85% 30.11 in 9.0 mi Calm Calm - N/A   Overcast
4:54 AM 27.0 °F 23.0 °F 23.0 °F 85% 30.09 in 9.0 mi NNE 3.5 mph - N/A   Overcast
5:54 AM 27.0 °F - 23.0 °F 85% 30.09 in 10.0 mi Calm Calm - N/A   Overcast
6:54 AM 28.9 °F - 24.1 °F 82% 30.08 in 3.0 mi Calm Calm - N/A   Overcast
7:11 AM 28.4 °F - 26.6 °F 93% 30.06 in 3.0 mi Calm Calm - 0.01 in Rain Light Freezing Rain
7:27 AM 28.4 °F 24.6 °F 24.8 °F 86% 30.03 in 3.0 mi East 3.5 mph - 0.01 in Rain Light Freezing Rain
7:45 AM 28.4 °F 23.3 °F 26.6 °F 93% 30.01 in 3.0 mi East 4.6 mph - 0.01 in   Overcast
7:54 AM 30.0 °F 24.1 °F 27.0 °F 88% 30.00 in 3.0 mi East 5.8 mph - 0.01 in   Overcast
8:49 AM 33.8 °F 23.9 °F 32.0 °F 93% 29.87 in 3.0 mi SE 15.0 mph - 0.02 in Rain Light Rain
8:54 AM 35.1 °F 25.9 °F 32.0 °F 89% 29.89 in 3.0 mi SE 13.8 mph - 0.03 in Rain Light Rain
9:20 AM 35.6 °F 27.5 °F 32.0 °F 87% 29.88 in 4.0 mi SE 11.5 mph - 0.02 in Rain Rain
9:33 AM 35.6 °F 28.0 °F 33.8 °F 93% 29.87 in 2.5 mi SE 10.4 mph - 0.07 in Rain Rain
9:54 AM 35.1 °F 27.9 °F 33.1 °F 92% 29.84 in 3.0 mi SE 9.2 mph - 0.11 in Rain Rain
10:36 AM 35.6 °F 27.1 °F 33.8 °F 93% 29.73 in 2.0 mi East 12.7 mph - 0.13 in Rain Heavy Rain
10:54 AM 35.1 °F 27.4 °F 33.1 °F 92% 29.72 in 2.0 mi ESE 10.4 mph - 0.19 in Rain Rain
11:08 AM 35.6 °F 28.6 °F 33.8 °F 93% 29.70 in 3.0 mi ESE 9.2 mph - 0.04 in Rain Rain
11:54 AM 36.0 °F 33.3 °F 34.0 °F 93% 29.61 in 2.5 mi ENE 3.5 mph - 0.25 in Rain Rain
12:03 PM 35.6 °F - 35.6 °F 100% 29.59 in 2.5 mi Calm Calm - 0.02 in Rain Light Rain
12:20 PM 35.6 °F 32.8 °F 35.6 °F 100% 29.55 in 5.0 mi SE 3.5 mph - 0.04 in Rain Light Rain
12:54 PM 37.0 °F 33.3 °F 35.1 °F 93% 29.48 in 9.0 mi SSW 4.6 mph - 0.04 in   Overcast
1:10 PM 39.2 °F 33.6 °F 37.4 °F 93% 29.44 in 7.0 mi South 8.1 mph - N/A   Overcast
1:17 PM 39.2 °F 33.0 °F 39.2 °F 100% 29.43 in 2.5 mi South 9.2 mph - N/A   Overcast
1:39 PM 44.6 °F 39.7 °F 42.8 °F 93% 29.44 in 8.0 mi West 9.2 mph - N/A   Overcast
1:54 PM 39.0 °F 30.6 °F 37.0 °F 93% 29.46 in 1.5 mi WNW 15.0 mph - N/A   Overcast
2:12 PM 37.4 °F 29.8 °F 35.6 °F 93% 29.46 in 0.8 mi NW 11.5 mph - N/A   Overcast
2:54 PM 39.9 °F 33.4 °F 37.9 °F 93% 29.45 in 0.8 mi WNW 10.4 mph - N/A   Overcast
3:31 PM 39.2 °F 33.0 °F 37.4 °F 93% 29.45 in 2.0 mi WNW 9.2 mph - N/A   Overcast
3:54 PM 39.0 °F 32.3 °F 37.0 °F 93% 29.45 in 2.0 mi WNW 10.4 mph - N/A   Overcast
4:29 PM 37.4 °F 30.3 °F 35.6 °F 93% 29.49 in 2.0 mi NW 10.4 mph - N/A   Overcast
4:54 PM 39.0 °F 32.3 °F 36.0 °F 89% 29.49 in 2.0 mi NW 10.4 mph - N/A   Overcast
5:03 PM 39.2 °F 33.6 °F 35.6 °F 87% 29.50 in 6.0 mi NW 8.1 mph - N/A   Overcast
5:54 PM 41.0 °F 34.7 °F 37.9 °F 89% 29.53 in 10.0 mi West 10.4 mph - N/A   Scattered Clouds
6:54 PM 43.0 °F 37.7 °F 37.9 °F 82% 29.56 in 10.0 mi West 9.2 mph - N/A   Mostly Cloudy
7:54 PM 44.1 °F 38.1 °F 37.9 °F 79% 29.59 in 10.0 mi West 11.5 mph - N/A   Mostly Cloudy
8:54 PM 43.0 °F 35.7 °F 37.0 °F 80% 29.62 in 10.0 mi WNW 15.0 mph 21.9 mph N/A   Overcast
9:54 PM 42.1 °F 35.2 °F 36.0 °F 79% 29.65 in 10.0 mi West 12.7 mph - N/A   Overcast
10:54 PM 42.1 °F 34.9 °F 35.1 °F 76% 29.70 in 10.0 mi WNW 13.8 mph 20.7 mph N/A   Overcast
11:43 PM 37.4 °F 28.5 °F 32.0 °F 81% 29.75 in 10.0 mi NNW 15.0 mph 24.2 mph 0.00 in   Overcast
11:54 PM 39.0 °F 30.3 °F 32.0 °F 76% 29.75 in 10.0 mi NNW 16.1 mph 24.2 mph 0.00 in   Overcast