Boston, MA

10:29 PM EDT on September 29, 2016 (GMT -0400)
Logan International

Weather History for KBOS - December, 2014

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Thursday, December 18, 2014

  Actual Average Record
Temperature  
Mean Temperature 40 °F 34 °F  
Max Temperature 44 °F 40 °F 61 °F (1928)
Min Temperature 36 °F 27 °F -6 °F (1919)
Degree Days  
Heating Degree Days 25 31  
Month to date heating degree days 478 507  
Since 1 July heating degree days 1491 1562  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 769 747  
Moisture  
Dew Point 30 °F    
Average Humidity 73    
Maximum Humidity 89    
Minimum Humidity 57    
Precipitation  
Precipitation 0.01 in 0.12 in 1.44 in (1951)
Month to date precipitation 5.55 2.29  
Year to date precipitation 44.24 42.28  
Sea Level Pressure  
Sea Level Pressure 29.78 in    
Wind  
Wind Speed 14 mph (West)    
Max Wind Speed 23 mph    
Max Gust Speed 30 mph    
Visibility 10 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

Daily Weather History Graph

Daily Weather History Graph

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Date:

Astronomy

Dec. 18, 2014 Rise Set
Actual Time 7:08 AM EST 4:13 PM EST
Civil Twilight 6:36 AM EST 4:45 PM EST
Nautical Twilight 6:00 AM EST 5:20 PM EST
Astronomical Twilight 5:26 AM EST 5:54 PM EST
Moon 3:15 AM EST (12/18) 1:54 PM EST (12/18)
Length of Visible Light 10h 08m
Length of Day
9h 04m
Waning Crescent, 13% of the Moon is Illuminated
Dec 18
Waning Crescent
Dec 21
New
Dec 28
First Quarter
Jan 4
Full
Jan 13
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 39.9 °F 31.8 °F 32.0 °F 73% 29.71 in 10.0 mi West 15.0 mph - N/A   Overcast
1:54 AM 39.9 °F 32.1 °F 30.9 °F 70% 29.72 in 10.0 mi West 13.8 mph 20.7 mph N/A   Overcast
2:54 AM 39.9 °F 31.4 °F 30.9 °F 70% 29.72 in 10.0 mi West 16.1 mph - N/A   Overcast
3:54 AM 39.9 °F 32.5 °F 30.0 °F 68% 29.71 in 10.0 mi West 12.7 mph - N/A   Overcast
4:54 AM 39.0 °F 31.0 °F 30.9 °F 73% 29.72 in 10.0 mi West 13.8 mph 21.9 mph 0.00 in   Overcast
5:54 AM 37.0 °F 28.1 °F 32.0 °F 82% 29.73 in 10.0 mi West 15.0 mph 21.9 mph 0.00 in Rain Light Rain
6:54 AM 37.0 °F 27.7 °F 33.1 °F 86% 29.75 in 10.0 mi West 16.1 mph 24.2 mph 0.01 in Rain Light Rain
7:15 AM 37.4 °F 29.8 °F 33.8 °F 87% 29.75 in 10.0 mi West 11.5 mph 24.2 mph 0.00 in Rain Light Rain
7:44 AM 35.6 °F 25.9 °F 32.0 °F 87% 29.76 in 10.0 mi West 16.1 mph - 0.00 in Rain Light Rain
7:54 AM 36.0 °F 26.0 °F 32.0 °F 86% 29.76 in 10.0 mi West 17.3 mph 25.3 mph 0.00 in Rain Light Rain
8:54 AM 37.0 °F 27.7 °F 32.0 °F 82% 29.77 in 10.0 mi West 16.1 mph 24.2 mph 0.00 in Rain Light Rain
9:54 AM 39.9 °F 31.4 °F 32.0 °F 73% 29.78 in 10.0 mi West 16.1 mph 25.3 mph N/A   Mostly Cloudy
10:54 AM 41.0 °F 33.5 °F 30.9 °F 67% 29.77 in 10.0 mi WNW 13.8 mph 24.2 mph N/A   Scattered Clouds
11:54 AM 43.0 °F 34.5 °F 30.0 °F 60% 29.77 in 10.0 mi WNW 19.6 mph 26.5 mph N/A   Mostly Cloudy
12:54 PM 43.0 °F 36.0 °F 28.9 °F 58% 29.77 in 10.0 mi WNW 13.8 mph 24.2 mph N/A   Overcast
1:54 PM 43.0 °F 36.0 °F 28.9 °F 58% 29.76 in 10.0 mi WNW 13.8 mph 27.6 mph N/A   Mostly Cloudy
2:54 PM 43.0 °F 36.8 °F 28.9 °F 58% 29.78 in 10.0 mi West 11.5 mph - N/A   Mostly Cloudy
3:54 PM 42.1 °F 36.1 °F 28.9 °F 60% 29.81 in 10.0 mi West 10.4 mph 19.6 mph N/A   Mostly Cloudy
4:54 PM 41.0 °F 32.8 °F 28.0 °F 60% 29.82 in 10.0 mi WNW 16.1 mph 21.9 mph N/A   Mostly Cloudy
5:54 PM 41.0 °F 34.3 °F 28.0 °F 60% 29.83 in 10.0 mi West 11.5 mph - N/A   Scattered Clouds
6:54 PM 39.9 °F 32.9 °F 28.0 °F 63% 29.85 in 10.0 mi WNW 11.5 mph - N/A   Mostly Cloudy
7:54 PM 39.0 °F 31.8 °F 28.0 °F 65% 29.86 in 10.0 mi West 11.5 mph 19.6 mph N/A   Overcast
8:54 PM 39.0 °F 32.3 °F 28.0 °F 65% 29.85 in 10.0 mi WNW 10.4 mph - N/A   Mostly Cloudy
9:54 PM 39.0 °F 32.8 °F 28.0 °F 65% 29.85 in 10.0 mi WNW 9.2 mph - N/A   Mostly Cloudy
10:54 PM 37.9 °F 30.9 °F 27.0 °F 65% 29.86 in 10.0 mi NW 10.4 mph - N/A   Mostly Cloudy
11:54 PM 37.0 °F 28.9 °F 26.1 °F 65% 29.87 in 10.0 mi WNW 12.7 mph 18.4 mph N/A   Overcast