Winthrop, MA

7:12 PM EST on February 27, 2017 (GMT -0500)
Logan International

Weather History for KBOS - December, 2011

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Saturday, December 31, 2011

  Actual Average Record
Temperature  
Mean Temperature 37 °F 30 °F  
Max Temperature 40 °F 37 °F 65 °F (1932)
Min Temperature 34 °F 24 °F -8 °F (1917)
Degree Days  
Heating Degree Days 28 35  
Month to date heating degree days 766 937  
Since 1 July heating degree days 1491 1994  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 1007 747  
Moisture  
Dew Point 34 °F    
Average Humidity 84    
Maximum Humidity 92    
Minimum Humidity 75    
Precipitation  
Precipitation 0.01 in 0.10 in 1.68 in (1906)
Month to date precipitation 3.97 3.78  
Year to date precipitation 52.40 43.77  
Snow  
Snow 0.00 in 0.40 in 6.50 in (2008)
Month to date snowfall T 9.0  
Since 1 July snowfall 1.0 10.3  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 29.90 in    
Wind  
Wind Speed 7 mph (NW)    
Max Wind Speed 14 mph    
Max Gust Speed 18 mph    
Visibility 4 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Dec. 31, 2011 Rise Set
Actual Time 7:13 AM EST 4:20 PM EST
Civil Twilight 6:41 AM EST 4:52 PM EST
Nautical Twilight 6:05 AM EST 5:28 PM EST
Astronomical Twilight 5:31 AM EST 6:02 PM EST
Moon 10:47 AM EST (12/31) No Moon Set
Length of Visible Light 10h 11m
Length of Day
9h 07m
Waxing Crescent, 45% of the Moon is Illuminated
Dec 31
Waxing Crescent
Jan 1
First Quarter
Jan 9
Full
Jan 16
Last Quarter
Jan 23
New

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 36.0 °F 31.1 °F 28.9 °F 76% 30.06 in 10.0 mi NNW 5.8 mph - N/A   Overcast
1:54 AM 36.0 °F 32.1 °F 30.0 °F 79% 30.05 in 10.0 mi North 4.6 mph - N/A   Overcast
2:54 AM 37.0 °F 32.4 °F 30.9 °F 79% 30.04 in 10.0 mi NNW 5.8 mph - N/A   Overcast
3:54 AM 36.0 °F 31.1 °F 32.0 °F 86% 30.00 in 9.0 mi North 5.8 mph - N/A   Overcast
4:54 AM 36.0 °F 30.3 °F 32.0 °F 86% 29.96 in 8.0 mi North 6.9 mph - N/A   Overcast
5:54 AM 37.0 °F 32.4 °F 33.1 °F 86% 29.97 in 5.0 mi NNW 5.8 mph - N/A   Overcast
6:54 AM 36.0 °F 29.6 °F 32.0 °F 86% 29.96 in 6.0 mi NW 8.1 mph - N/A   Overcast
7:54 AM 35.1 °F 27.9 °F 30.9 °F 85% 29.96 in 4.0 mi NW 9.2 mph - N/A   Overcast
8:20 AM 35.6 °F 29.9 °F 32.0 °F 87% 29.96 in 2.0 mi North 6.9 mph - 0.00 in Rain Light Rain
8:51 AM 35.6 °F 31.7 °F 32.0 °F 87% 29.96 in 1.8 mi NW 4.6 mph - 0.00 in Rain Light Rain
8:54 AM 35.6 °F 32.8 °F 33.8 °F 93% 29.96 in 1.8 mi NW 3.5 mph - N/A Rain Light Rain
9:54 AM 35.1 °F - 33.1 °F 92% 29.92 in 1.0 mi Calm Calm - 0.01 in   Overcast
10:33 AM 35.6 °F 30.7 °F 33.8 °F 93% 29.91 in 0.8 mi West 5.8 mph - N/A   Overcast
10:43 AM 35.6 °F - 33.8 °F 93% 29.91 in 1.0 mi Calm Calm - N/A   Overcast
10:54 AM 36.0 °F 32.1 °F 34.0 °F 93% 29.91 in 0.2 mi West 4.6 mph - 0.00 in Rain Light Rain
11:54 AM 37.0 °F 31.0 °F 35.1 °F 93% 29.86 in 0.2 mi WNW 8.1 mph - 0.00 in   Overcast
12:07 PM 37.4 °F 32.8 °F 35.6 °F 93% 29.85 in 2.0 mi NW 5.8 mph - N/A   Overcast
12:15 PM 37.4 °F 34.9 °F 35.6 °F 93% 29.85 in 2.0 mi NW 3.5 mph - N/A   Overcast
12:54 PM 37.9 °F - 35.1 °F 89% 29.83 in 2.0 mi Calm Calm - N/A   Overcast
1:54 PM 37.9 °F 32.1 °F 35.1 °F 89% 29.83 in 2.0 mi WNW 8.1 mph - N/A   Overcast
2:54 PM 39.0 °F 36.8 °F 35.1 °F 86% 29.82 in 2.0 mi North 3.5 mph - N/A   Overcast
3:09 PM 39.2 °F 37.0 °F 35.6 °F 87% 29.82 in 2.0 mi NW 3.5 mph - N/A   Overcast
3:54 PM 39.0 °F 35.7 °F 36.0 °F 89% 29.82 in 2.0 mi WNW 4.6 mph - N/A   Overcast
4:37 PM 39.2 °F 35.0 °F 35.6 °F 87% 29.83 in 2.0 mi NW 5.8 mph - N/A   Overcast
4:54 PM 37.9 °F 32.7 °F 36.0 °F 93% 29.83 in 2.0 mi WNW 6.9 mph - N/A   Overcast
5:42 PM 37.4 °F 31.4 °F 35.6 °F 93% 29.84 in 1.0 mi NW 8.1 mph - N/A   Overcast
5:54 PM 37.9 °F 31.5 °F 36.0 °F 93% 29.84 in 1.0 mi NW 9.2 mph - N/A   Overcast
6:17 PM 37.4 °F 30.8 °F 35.6 °F 93% 29.85 in 0.5 mi NW 9.2 mph - N/A   Overcast
6:54 PM 37.9 °F 32.7 °F 36.0 °F 93% 29.85 in 0.5 mi WNW 6.9 mph - N/A   Overcast
7:54 PM 37.9 °F 32.1 °F 36.0 °F 93% 29.86 in 0.5 mi NW 8.1 mph - N/A   Overcast
8:54 PM 37.9 °F 32.1 °F 36.0 °F 93% 29.88 in 0.5 mi WNW 8.1 mph - N/A   Overcast
9:15 PM 37.4 °F 30.3 °F 35.6 °F 93% 29.88 in 5.0 mi WNW 10.4 mph - N/A   Scattered Clouds
9:54 PM 37.9 °F 30.5 °F 35.1 °F 89% 29.89 in 7.0 mi WNW 11.5 mph - N/A   Scattered Clouds
10:54 PM 39.0 °F 32.3 °F 35.1 °F 86% 29.89 in 10.0 mi West 10.4 mph - N/A   Partly Cloudy
11:54 PM 39.0 °F 31.4 °F 35.1 °F 86% 29.91 in 10.0 mi WNW 12.7 mph - N/A   Clear