Weather History for KBOS - February, 2012

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Monday, February 20, 2012

  Actual Average Record
Temperature  
Mean Temperature 35 °F 33 °F  
Max Temperature 41 °F 40 °F 68 °F (1930)
Min Temperature 28 °F 26 °F 0 °F (1950)
Degree Days  
Heating Degree Days 30 32  
Month to date heating degree days 569 679  
Since 1 July heating degree days 3007 3789  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 11 °F    
Average Humidity 38    
Maximum Humidity 53    
Minimum Humidity 23    
Precipitation  
Precipitation 0.00 in 0.11 in 1.87 in (1934)
Month to date precipitation 0.12 2.25  
Year to date precipitation 2.79 5.61  
Sea Level Pressure  
Sea Level Pressure 30.13 in    
Wind  
Wind Speed 12 mph (NNW)    
Max Wind Speed 26 mph    
Max Gust Speed 36 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Feb. 20, 2012 Rise Set
Actual Time 6:34 AM EST 5:22 PM EST
Civil Twilight 6:05 AM EST 5:50 PM EST
Nautical Twilight 5:32 AM EST 6:23 PM EST
Astronomical Twilight 5:00 AM EST 6:55 PM EST
Moon 5:29 AM EST (2/20) 4:23 PM EST (2/20)
Length of Visible Light 11h 45m
Length of Day
10h 47m
Waning Crescent, 2% of the Moon is Illuminated
Feb 20
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 23.5 °F 14.0 °F 50% 30.01 in 10.0 mi NNW 8.1 mph - N/A   Clear
1:54 AM 30.0 °F 23.2 °F 14.0 °F 51% 30.01 in 10.0 mi NNW 6.9 mph - N/A   Scattered Clouds
2:54 AM 28.9 °F 22.8 °F 14.0 °F 54% 30.02 in 10.0 mi NNW 5.8 mph - N/A   Clear
3:54 AM 28.0 °F 21.7 °F 14.0 °F 56% 30.03 in 10.0 mi North 5.8 mph - N/A   Scattered Clouds
4:54 AM 28.0 °F 20.0 °F 12.9 °F 53% 30.03 in 10.0 mi NNW 8.1 mph - N/A   Scattered Clouds
5:54 AM 28.0 °F 18.1 °F 12.9 °F 53% 30.03 in 10.0 mi NNW 11.5 mph - N/A   Mostly Cloudy
6:54 AM 28.0 °F 17.5 °F 12.9 °F 53% 30.05 in 10.0 mi NNW 12.7 mph - N/A   Scattered Clouds
7:54 AM 28.9 °F 18.6 °F 12.9 °F 51% 30.08 in 10.0 mi NNW 12.7 mph - N/A   Mostly Cloudy
8:54 AM 30.0 °F 19.5 °F 12.9 °F 49% 30.09 in 10.0 mi NW 13.8 mph - N/A   Mostly Cloudy
9:54 AM 30.9 °F 21.2 °F 12.0 °F 46% 30.09 in 10.0 mi North 12.7 mph - N/A   Mostly Cloudy
10:54 AM 34.0 °F 25.0 °F 10.9 °F 38% 30.10 in 10.0 mi NNW 12.7 mph - N/A   Mostly Cloudy
11:54 AM 37.0 °F 30.4 °F 10.0 °F 33% 30.09 in 10.0 mi NNW 9.2 mph - N/A   Mostly Cloudy
12:54 PM 41.0 °F 33.5 °F 9.0 °F 27% 30.09 in 10.0 mi NNW 13.8 mph 21.9 mph N/A   Scattered Clouds
1:54 PM 41.0 °F 33.9 °F 7.0 °F 25% 30.10 in 10.0 mi NW 12.7 mph 21.9 mph N/A   Partly Cloudy
2:54 PM 41.0 °F 33.1 °F 6.1 °F 24% 30.11 in 10.0 mi NNW 15.0 mph 25.3 mph N/A   Partly Cloudy
3:54 PM 39.9 °F 29.7 °F 8.1 °F 27% 30.14 in 10.0 mi NNW 23.0 mph 33.4 mph N/A   Clear
4:54 PM 37.9 °F 28.5 °F 9.0 °F 30% 30.17 in 10.0 mi NNW 17.3 mph 29.9 mph N/A   Clear
5:54 PM 37.0 °F 28.5 °F 9.0 °F 31% 30.20 in 10.0 mi NNW 13.8 mph - N/A   Clear
6:54 PM 36.0 °F 27.5 °F 10.0 °F 34% 30.22 in 10.0 mi NNW 12.7 mph - N/A   Clear
7:54 PM 35.1 °F 27.4 °F 10.0 °F 35% 30.24 in 10.0 mi NNW 10.4 mph - N/A   Clear
8:54 PM 34.0 °F 26.6 °F 10.9 °F 38% 30.27 in 10.0 mi NW 9.2 mph - N/A   Clear
9:54 PM 33.1 °F 24.9 °F 12.9 °F 43% 30.27 in 10.0 mi NW 10.4 mph - N/A   Clear
10:54 PM 32.0 °F 25.6 °F 15.1 °F 50% 30.30 in 10.0 mi NW 6.9 mph - N/A   Clear
11:54 PM 32.0 °F 23.0 °F 15.1 °F 50% 30.30 in 10.0 mi NW 11.5 mph - N/A   Clear