Boston, MA

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

Weather History for KBOS - March, 2015

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Tuesday, March 17, 2015

  Actual Average Record
Temperature  
Mean Temperature 40 °F 38 °F  
Max Temperature 51 °F 46 °F 70 °F (1990)
Min Temperature 28 °F 31 °F 10 °F (1916)
Degree Days  
Heating Degree Days 25 27  
Month to date heating degree days 545 487  
Since 1 July heating degree days 4860 4529  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 27 °F    
Average Humidity 66    
Maximum Humidity 100    
Minimum Humidity 31    
Precipitation  
Precipitation 0.14 in 0.14 in 1.58 in (1968)
Month to date precipitation 1.74 2.25  
Year to date precipitation 8.68 8.86  
Sea Level Pressure  
Sea Level Pressure 29.58 in    
Wind  
Wind Speed 14 mph (WSW)    
Max Wind Speed 38 mph    
Max Gust Speed 51 mph    
Visibility 8 miles    
Events Rain , Snow    
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. 17, 2015 Rise Set
Actual Time 6:52 AM EDT 6:52 PM EDT
Civil Twilight 6:25 AM EDT 7:20 PM EDT
Nautical Twilight 5:52 AM EDT 7:53 PM EDT
Astronomical Twilight 5:19 AM EDT 8:26 PM EDT
Moon 4:53 AM EDT (3/17) 3:50 PM EDT (3/17)
Length of Visible Light 12h 55m
Length of Day
11h 59m
Waning Crescent, 11% of the Moon is Illuminated
Mar 17
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 35.1 °F 31.0 °F 23.0 °F 61% 29.74 in 10.0 mi South 4.6 mph - N/A   Partly Cloudy
1:54 AM 37.0 °F 32.4 °F 24.1 °F 59% 29.73 in 10.0 mi SSW 5.8 mph - N/A   Overcast
2:54 AM 37.0 °F 31.0 °F 24.1 °F 59% 29.68 in 10.0 mi SSW 8.1 mph - N/A   Clear
3:54 AM 35.1 °F 30.1 °F 27.0 °F 72% 29.66 in 10.0 mi SSW 5.8 mph - N/A   Scattered Clouds
4:54 AM 37.9 °F 32.7 °F 25.0 °F 60% 29.62 in 10.0 mi SSW 6.9 mph - N/A   Overcast
5:54 AM 37.9 °F 33.5 °F 27.0 °F 65% 29.62 in 10.0 mi SW 5.8 mph - 0.00 in Rain Light Rain
6:54 AM 36.0 °F 31.1 °F 32.0 °F 86% 29.59 in 7.0 mi South 5.8 mph - 0.03 in Rain Light Rain
7:54 AM 35.1 °F 30.1 °F 33.1 °F 92% 29.56 in 4.0 mi South 5.8 mph - 0.02 in Rain Light Rain
8:54 AM 37.0 °F 31.0 °F 35.1 °F 93% 29.55 in 4.0 mi SW 8.1 mph - 0.02 in Rain Light Rain
9:13 AM 37.4 °F 32.1 °F 35.6 °F 93% 29.54 in 3.0 mi SSW 6.9 mph - 0.02 in Rain Light Rain
9:54 AM 37.0 °F 33.3 °F 36.0 °F 96% 29.53 in 3.0 mi SSW 4.6 mph - 0.04 in Rain Light Rain
10:54 AM 37.9 °F 32.1 °F 37.0 °F 97% 29.50 in 3.0 mi SSW 8.1 mph - 0.01 in Rain Light Rain
11:29 AM 39.2 °F 34.2 °F 37.4 °F 93% 29.48 in 2.5 mi South 6.9 mph - 0.01 in Rain Light Rain
11:54 AM 39.0 °F 35.7 °F 37.9 °F 96% 29.46 in 3.0 mi SSW 4.6 mph - 0.02 in   Overcast
12:54 PM 44.1 °F - 41.0 °F 89% 29.73 in 5.0 mi North - - N/A   Mostly Cloudy
1:54 PM 48.9 °F - 41.0 °F 74% 29.39 in 10.0 mi West 13.8 mph 21.9 mph N/A   Scattered Clouds
2:54 PM 48.9 °F - 37.9 °F 66% 29.39 in 10.0 mi West 13.8 mph 25.3 mph N/A   Overcast
3:54 PM 50.0 °F - 36.0 °F 59% 29.38 in 10.0 mi WNW 24.2 mph 29.9 mph N/A   Scattered Clouds
4:54 PM 45.0 °F 35.4 °F 35.1 °F 68% 29.42 in 10.0 mi WNW 28.8 mph 43.7 mph 0.00 in Rain Light Rain
5:38 PM 37.4 °F 25.6 °F 30.2 °F 75% 29.49 in 9.0 mi NW 26.5 mph 40.3 mph 0.00 in Rain , Snow Light Snow
5:48 PM 37.4 °F 25.2 °F 28.4 °F 70% 29.49 in 10.0 mi NW 28.8 mph 46.0 mph 0.00 in   Mostly Cloudy
5:54 PM 37.9 °F 27.1 °F 27.0 °F 65% 29.50 in 10.0 mi NW 23.0 mph 40.3 mph 0.00 in   Mostly Cloudy
6:54 PM 35.1 °F 21.8 °F 14.0 °F 42% 29.58 in 10.0 mi NW 29.9 mph 50.6 mph N/A   Scattered Clouds
7:54 PM 32.0 °F 17.6 °F 10.9 °F 42% 29.65 in 10.0 mi NW 29.9 mph 41.4 mph N/A   Partly Cloudy
8:54 PM 30.9 °F 18.4 °F 10.0 °F 42% 29.70 in 10.0 mi NW 20.7 mph 32.2 mph N/A   Partly Cloudy
9:54 PM 30.0 °F 17.2 °F 5.0 °F 35% 29.72 in 10.0 mi NW 20.7 mph 39.1 mph N/A   Partly Cloudy
10:54 PM 30.0 °F 16.0 °F 3.9 °F 33% 29.73 in 10.0 mi NW 25.3 mph 42.6 mph N/A   Partly Cloudy
11:54 PM 28.9 °F 16.5 °F 3.9 °F 35% 29.74 in 10.0 mi NW 18.4 mph 32.2 mph N/A   Partly Cloudy