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 18, 2015

  Actual Average Record
Temperature  
Mean Temperature 26 °F 39 °F  
Max Temperature 30 °F 46 °F 74 °F (2012)
Min Temperature 22 °F 32 °F 5 °F (1885)
Degree Days  
Heating Degree Days 39 26  
Month to date heating degree days 584 513  
Since 1 July heating degree days 4899 4555  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 0 °F    
Average Humidity 35    
Maximum Humidity 46    
Minimum Humidity 23    
Precipitation  
Precipitation 0.00 in 0.15 in 3.49 in (1968)
Month to date precipitation 1.74 2.40  
Year to date precipitation 8.68 9.01  
Sea Level Pressure  
Sea Level Pressure 29.88 in    
Wind  
Wind Speed 22 mph (WNW)    
Max Wind Speed 36 mph    
Max Gust Speed 52 mph    
Visibility 10 miles    
Events      
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. 18, 2015 Rise Set
Actual Time 6:51 AM EDT 6:53 PM EDT
Civil Twilight 6:23 AM EDT 7:21 PM EDT
Nautical Twilight 5:50 AM EDT 7:54 PM EDT
Astronomical Twilight 5:17 AM EDT 8:27 PM EDT
Moon 5:34 AM EDT (3/18) 5:03 PM EDT (3/18)
Length of Visible Light 12h 58m
Length of Day
12h 02m
Waning Crescent, 5% of the Moon is Illuminated
Mar 18
Waning Crescent
Mar 20
New
Mar 27
First Quarter
Apr 4
Full
Apr 11
Last Quarter

Hourly Weather History & Observations

Time (EDT) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:54 AM 28.0 °F 16.1 °F 5.0 °F 38% 29.74 in 10.0 mi WNW 16.1 mph 24.2 mph N/A   Partly Cloudy
1:54 AM 28.0 °F 14.6 °F 6.1 °F 39% 29.75 in 10.0 mi NW 20.7 mph 31.1 mph N/A   Scattered Clouds
2:54 AM 27.0 °F 12.2 °F 7.0 °F 43% 29.75 in 10.0 mi NW 24.2 mph 34.5 mph N/A   Scattered Clouds
3:54 AM 26.1 °F 12.3 °F 5.0 °F 41% 29.76 in 10.0 mi WNW 19.6 mph 32.2 mph N/A   Partly Cloudy
4:54 AM 25.0 °F 12.6 °F 6.1 °F 45% 29.77 in 10.0 mi WNW 15.0 mph 28.8 mph N/A   Partly Cloudy
5:54 AM 24.1 °F 11.0 °F 1.0 °F 37% 29.78 in 10.0 mi WNW 16.1 mph 33.4 mph N/A   Partly Cloudy
6:54 AM 23.0 °F 7.2 °F 1.9 °F 40% 29.81 in 10.0 mi WNW 23.0 mph 29.9 mph N/A   Partly Cloudy
7:54 AM 24.1 °F 7.7 °F 1.0 °F 37% 29.84 in 10.0 mi WNW 26.5 mph 47.2 mph N/A   Partly Cloudy
8:54 AM 24.1 °F 7.7 °F 1.9 °F 38% 29.84 in 10.0 mi WNW 26.5 mph 38.0 mph N/A   Partly Cloudy
9:54 AM 26.1 °F 9.6 °F 1.0 °F 34% 29.85 in 10.0 mi WNW 29.9 mph 39.1 mph N/A   Partly Cloudy
10:54 AM 27.0 °F 12.5 °F 1.0 °F 33% 29.85 in 10.0 mi WNW 23.0 mph 33.4 mph N/A   Partly Cloudy
11:54 AM 28.0 °F 11.8 °F -2.0 °F 27% 29.84 in 10.0 mi WNW 32.2 mph 47.2 mph N/A   Partly Cloudy
12:54 PM 28.9 °F 14.3 °F -2.9 °F 25% 29.85 in 10.0 mi WNW 26.5 mph 40.3 mph N/A   Partly Cloudy
1:54 PM 28.9 °F 14.8 °F -4.0 °F 24% 29.85 in 10.0 mi WNW 24.2 mph 44.9 mph N/A   Partly Cloudy
2:54 PM 28.9 °F 14.3 °F -5.1 °F 23% 29.86 in 10.0 mi WNW 26.5 mph 43.7 mph N/A   Scattered Clouds
4:54 PM 28.9 °F 14.8 °F -5.1 °F 23% 29.90 in 10.0 mi NW 24.2 mph 41.4 mph N/A   Scattered Clouds
5:54 PM 27.0 °F 13.2 °F -6.0 °F 24% 29.93 in 10.0 mi NW 20.7 mph 40.3 mph N/A   Scattered Clouds
6:54 PM 26.1 °F 12.7 °F -5.1 °F 26% 29.98 in 10.0 mi NW 18.4 mph 31.1 mph N/A   Scattered Clouds
7:54 PM 25.0 °F 12.2 °F -5.1 °F 27% 30.02 in 10.0 mi WNW 16.1 mph 28.8 mph N/A   Scattered Clouds
8:54 PM 24.1 °F 10.1 °F -5.1 °F 28% 30.06 in 10.0 mi WNW 18.4 mph 26.5 mph N/A   Clear
9:54 PM 23.0 °F 11.1 °F -2.9 °F 32% 30.07 in 10.0 mi WNW 12.7 mph 27.6 mph N/A   Clear
10:54 PM 23.0 °F 9.6 °F -2.9 °F 32% 30.07 in 10.0 mi WNW 16.1 mph 23.0 mph N/A   Clear
11:54 PM 21.9 °F 10.4 °F -2.9 °F 34% 30.08 in 10.0 mi WNW 11.5 mph 28.8 mph N/A   Clear