Boston, MA

3:19 AM EDT on June 19, 2018 (GMT -0400)
Logan International

Weather History for KBOS - March, 2015

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Wednesday, March 11, 2015

  Actual Average Record
Temperature  
Mean Temperature 47 °F 37 °F  
Max Temperature 57 °F 44 °F 67 °F (1990)
Min Temperature 37 °F 30 °F 9 °F (1939)
Degree Days  
Heating Degree Days 18 28  
Month to date heating degree days 366 323  
Since 1 July heating degree days 4681 4365  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 34 °F    
Average Humidity 65    
Maximum Humidity 100    
Minimum Humidity 30    
Precipitation  
Precipitation 0.01 in 0.13 in 1.94 in (1901)
Month to date precipitation 0.53 1.46  
Year to date precipitation 7.47 8.07  
Sea Level Pressure  
Sea Level Pressure 29.86 in    
Wind  
Wind Speed 12 mph (WSW)    
Max Wind Speed 25 mph    
Max Gust Speed 33 mph    
Visibility 7 miles    
Events Fog , Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

Daily Weather History Graph

Daily Weather History Graph

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Astronomy

Mar. 11, 2015 Rise Set
Actual Time 7:03 AM EDT 6:45 PM EDT
Civil Twilight 6:35 AM EDT 7:13 PM EDT
Nautical Twilight 6:02 AM EDT 7:46 PM EDT
Astronomical Twilight 5:29 AM EDT 8:19 PM EDT
Moon No Moon Rise 10:03 AM EDT (3/11)
Length of Visible Light 12h 38m
Length of Day
11h 42m
Waning Gibbous, 71% of the Moon is Illuminated
Mar 11
Waning Gibbous
Mar 13
Last Quarter
Mar 20
New
Mar 27
First Quarter
Apr 4
Full

Hourly Weather History & Observations

Time (EDT) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:15 AM 37.4 °F 33.8 °F 37.4 °F 100% 29.99 in 0.5 mi South 4.6 mph - 0.00 in Fog , Rain Light Rain
12:54 AM 37.9 °F 35.5 °F 37.0 °F 97% 29.96 in 0.5 mi SSE 3.5 mph - 0.01 in Fog , Rain Light Rain
1:54 AM 37.9 °F 35.5 °F 37.9 °F 100% 29.93 in 0.5 mi SSE 3.5 mph - 0.01 in Fog , Rain Light Rain
2:40 AM 39.2 °F - 37.4 °F 93% 29.90 in 0.8 mi Calm Calm - 0.00 in Rain Light Rain
2:54 AM 39.9 °F - 39.9 °F 100% 29.88 in 1.2 mi Calm Calm - 0.00 in Rain Light Rain
3:16 AM 39.2 °F 35.9 °F 39.2 °F 100% 29.87 in 3.0 mi SSW 4.6 mph - 0.00 in Rain Light Rain
3:41 AM 39.2 °F 35.0 °F 37.4 °F 93% 29.86 in 2.5 mi SW 5.8 mph - 0.00 in Rain Light Rain
3:54 AM 37.9 °F 34.4 °F 37.9 °F 100% 29.85 in 2.5 mi SSW 4.6 mph - 0.00 in Rain Light Rain
4:13 AM 37.4 °F 32.1 °F 37.4 °F 100% 29.82 in 3.0 mi SSW 6.9 mph - 0.00 in Rain Light Rain
4:25 AM 39.2 °F 35.0 °F 37.4 °F 93% 29.82 in 3.0 mi South 5.8 mph - 0.00 in   Scattered Clouds
4:54 AM 39.2 °F 33.6 °F 37.9 °F 95% 29.81 in 3.0 mi SSW 8.1 mph - 0.00 in   Mostly Cloudy
4:56 AM - - - N/A% 29.81 in 1.2 mi SSW 8.1 mph - N/A   Scattered Clouds
5:05 AM 39.2 °F 33.6 °F 37.4 °F 93% 29.82 in 3.0 mi SSW 8.1 mph - N/A   Scattered Clouds
5:54 AM 39.2 °F 33.6 °F 37.9 °F 95% 29.82 in 3.0 mi SW 8.1 mph - N/A   Scattered Clouds
6:54 AM 43.0 °F 37.7 °F 39.9 °F 89% 29.81 in 10.0 mi West 9.2 mph - N/A   Scattered Clouds
8:54 AM 46.9 °F - 39.9 °F 77% 29.81 in 10.0 mi West 15.0 mph 20.7 mph N/A   Scattered Clouds
9:54 AM 48.0 °F - 39.9 °F 74% 29.80 in 10.0 mi West 15.0 mph 23.0 mph N/A   Scattered Clouds
10:54 AM 48.9 °F - 39.9 °F 71% 29.80 in 10.0 mi WSW 11.5 mph - N/A   Scattered Clouds
11:54 AM 51.1 °F - 39.0 °F 63% 29.81 in 10.0 mi West 13.8 mph - N/A   Mostly Cloudy
12:54 PM 55.0 °F - 34.0 °F 45% 29.80 in 10.0 mi West 17.3 mph 28.8 mph N/A   Mostly Cloudy
1:54 PM 55.9 °F - 30.0 °F 37% 29.79 in 10.0 mi WNW 17.3 mph 28.8 mph N/A   Mostly Cloudy
2:54 PM 55.9 °F - 28.9 °F 36% 29.81 in 10.0 mi WNW 16.1 mph 25.3 mph N/A   Mostly Cloudy
3:54 PM 55.9 °F - 25.0 °F 30% 29.82 in 10.0 mi WNW 17.3 mph 26.5 mph N/A   Mostly Cloudy
4:54 PM 55.0 °F - 27.0 °F 34% 29.83 in 10.0 mi West 13.8 mph 19.6 mph N/A   Mostly Cloudy
5:54 PM 55.0 °F - 28.0 °F 35% 29.84 in 10.0 mi West 12.7 mph 19.6 mph N/A   Scattered Clouds
6:54 PM 52.0 °F - 28.9 °F 41% 29.87 in 10.0 mi West 12.7 mph - N/A   Scattered Clouds
7:54 PM 50.0 °F - 27.0 °F 41% 29.90 in 10.0 mi West 13.8 mph - N/A   Partly Cloudy
8:54 PM 48.9 °F - 26.1 °F 41% 29.93 in 10.0 mi West 9.2 mph - N/A   Clear
9:54 PM 46.9 °F - 27.0 °F 46% 29.94 in 10.0 mi West 9.2 mph - N/A   Clear
10:54 PM 44.1 °F 37.7 °F 27.0 °F 51% 29.96 in 10.0 mi West 12.7 mph - N/A   Clear
11:54 PM 44.1 °F 37.1 °F 27.0 °F 51% 29.95 in 10.0 mi West 15.0 mph 23.0 mph N/A   Clear