Weather History for KBOS - February, 2013

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Wednesday, February 20, 2013

  Actual Average Record
Temperature  
Mean Temperature 35 °F 33 °F  
Max Temperature 43 °F 40 °F 68 °F (1930)
Min Temperature 27 °F 26 °F 0 °F (1950)
Degree Days  
Heating Degree Days 30 32  
Month to date heating degree days 700 679  
Since 1 July heating degree days 3560 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 19 °F    
Average Humidity 69    
Maximum Humidity 96    
Minimum Humidity 42    
Precipitation  
Precipitation 0.01 in 0.11 in 1.87 in (1934)
Month to date precipitation 3.26 2.25  
Year to date precipitation 4.34 5.61  
Sea Level Pressure  
Sea Level Pressure 29.64 in    
Wind  
Wind Speed 17 mph (West)    
Max Wind Speed 24 mph    
Max Gust Speed 37 mph    
Visibility 10 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Feb. 20, 2013 Rise Set
Actual Time 6:33 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 6:56 PM EST
Moon 12:38 PM EST (2/20) 2:54 AM EST (2/20)
Length of Visible Light 11h 47m
Length of Day
10h 50m
Waxing Gibbous, 76% of the Moon is Illuminated
Feb 20
Waxing Gibbous
Feb 25
Full
Mar 4
Last Quarter
Mar 11
New
Mar 19
First 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 43.0 °F 37.2 °F 37.9 °F 82% 29.56 in 10.0 mi West 10.4 mph 19.6 mph 0.01 in Rain Light Rain
1:54 AM 41.0 °F 33.9 °F 36.0 °F 82% 29.55 in 10.0 mi West 12.7 mph - 0.00 in   Overcast
2:54 AM 39.9 °F 31.8 °F 35.1 °F 83% 29.55 in 10.0 mi West 15.0 mph - N/A   Mostly Cloudy
3:54 AM 39.0 °F 31.8 °F 34.0 °F 82% 29.55 in 10.0 mi West 11.5 mph 23.0 mph N/A   Overcast
4:10 AM 39.2 °F 30.2 °F 33.8 °F 81% 29.55 in 10.0 mi West 17.3 mph 24.2 mph N/A   Overcast
4:32 AM 37.4 °F 27.5 °F 30.2 °F 75% 29.57 in 10.0 mi West 18.4 mph 27.6 mph N/A   Mostly Cloudy
4:54 AM 37.0 °F 28.5 °F 28.9 °F 73% 29.57 in 10.0 mi West 13.8 mph - N/A   Mostly Cloudy
5:54 AM 35.1 °F 24.5 °F 26.1 °F 70% 29.59 in 10.0 mi West 18.4 mph 23.0 mph N/A   Partly Cloudy
6:54 AM 34.0 °F 23.4 °F 21.9 °F 61% 29.62 in 10.0 mi West 17.3 mph 24.2 mph N/A   Mostly Cloudy
7:54 AM 32.0 °F 20.1 °F 19.0 °F 59% 29.64 in 10.0 mi West 19.6 mph 29.9 mph N/A   Scattered Clouds
8:54 AM 33.1 °F 22.2 °F 18.0 °F 54% 29.65 in 10.0 mi West 17.3 mph 27.6 mph N/A   Partly Cloudy
9:54 AM 33.1 °F 20.6 °F 17.1 °F 52% 29.66 in 10.0 mi West 23.0 mph 31.1 mph N/A   Scattered Clouds
10:54 AM 34.0 °F 21.8 °F 15.1 °F 46% 29.66 in 10.0 mi WNW 23.0 mph 33.4 mph N/A   Mostly Cloudy
11:54 AM 33.1 °F 20.3 °F 14.0 °F 46% 29.65 in 10.0 mi West 24.2 mph 33.4 mph N/A   Mostly Cloudy
12:54 PM 33.1 °F 21.2 °F 14.0 °F 46% 29.64 in 10.0 mi West 20.7 mph 27.6 mph N/A   Mostly Cloudy
1:54 PM 33.1 °F 20.6 °F 12.0 °F 42% 29.64 in 10.0 mi West 23.0 mph 33.4 mph N/A   Mostly Cloudy
2:54 PM 33.1 °F 21.2 °F 10.9 °F 40% 29.65 in 10.0 mi WNW 20.7 mph 31.1 mph N/A   Mostly Cloudy
3:54 PM 33.1 °F 21.9 °F 10.0 °F 38% 29.65 in 10.0 mi West 18.4 mph 29.9 mph N/A   Partly Cloudy
4:54 PM 32.0 °F 20.5 °F 9.0 °F 38% 29.67 in 10.0 mi WNW 18.4 mph 33.4 mph N/A   Scattered Clouds
5:54 PM 30.0 °F 16.9 °F 9.0 °F 41% 29.69 in 10.0 mi West 21.9 mph 31.1 mph N/A   Partly Cloudy
6:54 PM 28.9 °F 16.1 °F 9.0 °F 43% 29.71 in 10.0 mi WNW 19.6 mph 31.1 mph N/A   Partly Cloudy
7:54 PM 28.9 °F 16.5 °F 10.0 °F 45% 29.73 in 10.0 mi West 18.4 mph 29.9 mph N/A   Mostly Cloudy
8:54 PM 28.9 °F 16.9 °F 10.9 °F 47% 29.74 in 10.0 mi West 17.3 mph 25.3 mph N/A   Overcast
9:54 PM 28.0 °F 18.6 °F 10.9 °F 49% 29.75 in 10.0 mi West 10.4 mph - N/A   Partly Cloudy
10:54 PM 27.0 °F 14.3 °F 12.0 °F 53% 29.77 in 10.0 mi West 17.3 mph 24.2 mph N/A   Mostly Cloudy
11:54 PM 28.0 °F 15.7 °F 12.9 °F 53% 29.78 in 10.0 mi West 17.3 mph 27.6 mph N/A   Mostly Cloudy