Weather History for KBOS - February, 2012

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Tuesday, February 21, 2012

  Actual Average Record
Temperature  
Mean Temperature 36 °F 33 °F  
Max Temperature 44 °F 40 °F 63 °F (1906)
Min Temperature 28 °F 26 °F -1 °F (1950)
Degree Days  
Heating Degree Days 29 32  
Month to date heating degree days 598 711  
Since 1 July heating degree days 3036 3821  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 22 °F    
Average Humidity 52    
Maximum Humidity 70    
Minimum Humidity 33    
Precipitation  
Precipitation T in 0.12 in 2.45 in (1898)
Month to date precipitation 0.12 2.37  
Year to date precipitation 2.79 5.73  
Sea Level Pressure  
Sea Level Pressure 30.16 in    
Wind  
Wind Speed 9 mph (SW)    
Max Wind Speed 21 mph    
Max Gust Speed 28 mph    
Visibility 10 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Feb. 21, 2012 Rise Set
Actual Time 6:32 AM EST 5:23 PM EST
Civil Twilight 6:04 AM EST 5:51 PM EST
Nautical Twilight 5:31 AM EST 6:24 PM EST
Astronomical Twilight 4:59 AM EST 6:57 PM EST
Moon 5:59 AM EST (2/21) 5:27 PM EST (2/21)
Length of Visible Light 11h 47m
Length of Day
10h 50m
Waning Crescent, 0% of the Moon is Illuminated
Feb 21
Waning Crescent
Feb 21
New
Feb 29
First Quarter
Mar 8
Full
Mar 14
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 30.9 °F 22.8 °F 15.1 °F 52% 30.31 in 10.0 mi NW 9.2 mph - N/A   Clear
1:54 AM 30.9 °F 22.8 °F 16.0 °F 54% 30.32 in 10.0 mi NW 9.2 mph - N/A   Clear
2:54 AM 30.0 °F 23.2 °F 15.1 °F 54% 30.32 in 10.0 mi NW 6.9 mph - N/A   Clear
3:54 AM 28.9 °F 21.9 °F 16.0 °F 58% 30.33 in 10.0 mi NW 6.9 mph - N/A   Clear
4:54 AM 28.9 °F 21.9 °F 16.0 °F 58% 30.34 in 10.0 mi WNW 6.9 mph - N/A   Clear
5:54 AM 28.0 °F 22.8 °F 16.0 °F 61% 30.33 in 10.0 mi NW 4.6 mph - N/A   Clear
6:54 AM 28.9 °F 22.8 °F 16.0 °F 58% 30.34 in 10.0 mi WNW 5.8 mph - N/A   Clear
7:54 AM 30.9 °F 27.5 °F 17.1 °F 57% 30.35 in 10.0 mi NW 3.5 mph - N/A   Clear
8:54 AM 33.1 °F - 17.1 °F 52% 30.33 in 10.0 mi Calm Calm - N/A   Clear
9:54 AM 33.1 °F 28.7 °F 19.0 °F 56% 30.31 in 10.0 mi SSE 4.6 mph - N/A   Clear
10:54 AM 36.0 °F 31.1 °F 18.0 °F 48% 30.30 in 10.0 mi SE 5.8 mph - N/A   Scattered Clouds
11:54 AM 39.9 °F 32.9 °F 18.0 °F 41% 30.27 in 10.0 mi SSE 11.5 mph - N/A   Scattered Clouds
12:54 PM 42.1 °F 36.6 °F 16.0 °F 35% 30.21 in 10.0 mi SSW 9.2 mph - N/A   Mostly Cloudy
1:54 PM 42.1 °F 34.9 °F 16.0 °F 35% 30.18 in 10.0 mi South 13.8 mph - N/A   Mostly Cloudy
2:54 PM 42.1 °F 35.2 °F 18.0 °F 38% 30.14 in 10.0 mi SSW 12.7 mph - N/A   Mostly Cloudy
3:54 PM 41.0 °F 32.5 °F 19.9 °F 43% 30.11 in 10.0 mi SSW 17.3 mph - N/A   Mostly Cloudy
4:54 PM 39.0 °F 30.3 °F 21.9 °F 50% 30.08 in 10.0 mi South 16.1 mph 24.2 mph N/A   Mostly Cloudy
5:54 PM 37.9 °F 28.9 °F 24.1 °F 57% 30.05 in 10.0 mi South 16.1 mph 21.9 mph N/A   Mostly Cloudy
6:54 PM 37.0 °F 29.3 °F 26.1 °F 65% 30.03 in 10.0 mi SSW 11.5 mph - N/A   Scattered Clouds
7:54 PM 37.9 °F 30.9 °F 27.0 °F 65% 30.02 in 10.0 mi SSW 10.4 mph - N/A   Overcast
8:04 PM 37.4 °F 29.8 °F 28.4 °F 70% 30.02 in 10.0 mi SSW 11.5 mph - N/A   Overcast
8:54 PM 39.0 °F 31.4 °F 30.0 °F 70% 29.98 in 10.0 mi South 12.7 mph - N/A   Overcast
9:54 PM 39.0 °F 33.4 °F 34.0 °F 82% 29.95 in 10.0 mi South 8.1 mph - 0.00 in Rain Light Rain
10:54 PM 39.0 °F 31.0 °F 36.0 °F 89% 29.90 in 10.0 mi South 13.8 mph - 0.00 in   Overcast
11:31 PM 39.2 °F 37.0 °F 35.6 °F 87% 29.88 in 10.0 mi SSW 3.5 mph - N/A   Overcast
11:54 PM 39.9 °F 35.8 °F 36.0 °F 86% 29.87 in 10.0 mi SSW 5.8 mph - N/A   Overcast