Boston, MA

4:40 AM EDT on September 25, 2017 (GMT -0400)
Logan International

Weather History for KBOS - April, 2013

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Monday, April 15, 2013

  Actual Average Record
Temperature  
Mean Temperature 44 °F 48 °F  
Max Temperature 49 °F 55 °F 82 °F (1896)
Min Temperature 38 °F 41 °F 28 °F (1943)
Degree Days  
Heating Degree Days 21 17  
Month to date heating degree days 287 293  
Since 1 July heating degree days 4928 5164  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 33 °F    
Average Humidity 63    
Maximum Humidity 76    
Minimum Humidity 50    
Precipitation  
Precipitation 0.00 in 0.12 in 2.05 in (1903)
Month to date precipitation 0.78 2.04  
Year to date precipitation 10.44 12.97  
Sea Level Pressure  
Sea Level Pressure 30.35 in    
Wind  
Wind Speed 11 mph (East)    
Max Wind Speed 20 mph    
Max Gust Speed 23 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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Date:

Astronomy

Apr. 15, 2013 Rise Set
Actual Time 6:02 AM EDT 7:25 PM EDT
Civil Twilight 5:33 AM EDT 7:55 PM EDT
Nautical Twilight 4:58 AM EDT 8:30 PM EDT
Astronomical Twilight 4:21 AM EDT 9:07 PM EDT
Moon 9:22 AM EDT (4/15) No Moon Set
Length of Visible Light 14h 21m
Length of Day
13h 23m
Waxing Crescent, 24% of the Moon is Illuminated
Apr 15
Waxing Crescent
Apr 18
First Quarter
Apr 25
Full
May 2
Last Quarter
May 9
New

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 43.0 °F 37.2 °F 28.0 °F 56% 30.22 in 10.0 mi NW 10.4 mph - N/A   Clear
1:54 AM 42.1 °F 36.1 °F 27.0 °F 55% 30.23 in 10.0 mi NW 10.4 mph - N/A   Clear
2:54 AM 41.0 °F 34.7 °F 27.0 °F 57% 30.24 in 10.0 mi WNW 10.4 mph - N/A   Partly Cloudy
3:54 AM 39.9 °F 35.1 °F 28.0 °F 63% 30.26 in 10.0 mi NW 6.9 mph - N/A   Scattered Clouds
4:54 AM 39.0 °F 33.4 °F 28.0 °F 65% 30.28 in 10.0 mi NW 8.1 mph - N/A   Clear
5:54 AM 39.0 °F 34.8 °F 28.0 °F 65% 30.30 in 10.0 mi NNW 5.8 mph - N/A   Partly Cloudy
6:54 AM 39.9 °F 36.7 °F 28.9 °F 65% 30.34 in 10.0 mi NNW 4.6 mph - N/A   Mostly Cloudy
7:54 AM 43.0 °F 40.3 °F 30.0 °F 60% 30.36 in 10.0 mi North 4.6 mph - N/A   Mostly Cloudy
8:54 AM 46.9 °F - 30.0 °F 52% 30.38 in 10.0 mi ENE 4.6 mph - N/A   Mostly Cloudy
9:54 AM 48.0 °F - 30.0 °F 50% 30.39 in 10.0 mi East 6.9 mph - N/A   Mostly Cloudy
10:54 AM 48.0 °F - 32.0 °F 54% 30.40 in 10.0 mi Variable 6.9 mph - N/A   Mostly Cloudy
11:54 AM 48.0 °F - 32.0 °F 54% 30.39 in 10.0 mi East 10.4 mph - N/A   Mostly Cloudy
12:54 PM 48.0 °F - 34.0 °F 58% 30.38 in 10.0 mi East 11.5 mph - N/A   Overcast
1:54 PM 48.9 °F - 35.1 °F 59% 30.38 in 10.0 mi East 15.0 mph - N/A   Overcast
2:54 PM 46.9 °F - 35.1 °F 63% 30.37 in 10.0 mi ESE 18.4 mph - N/A   Overcast
3:54 PM 46.9 °F - 37.0 °F 68% 30.36 in 10.0 mi ESE 18.4 mph - N/A   Overcast
4:54 PM 46.9 °F - 37.0 °F 68% 30.34 in 10.0 mi ESE 18.4 mph - N/A   Overcast
5:54 PM 46.0 °F 39.0 °F 37.0 °F 71% 30.35 in 10.0 mi ESE 17.3 mph - N/A   Overcast
6:54 PM 46.0 °F 39.3 °F 39.0 °F 76% 30.35 in 10.0 mi ESE 16.1 mph - N/A   Mostly Cloudy
7:54 PM 46.0 °F 42.5 °F 39.0 °F 76% 30.39 in 10.0 mi SE 6.9 mph - N/A   Scattered Clouds
8:54 PM 46.9 °F - 36.0 °F 66% 30.38 in 10.0 mi South 11.5 mph - N/A   Scattered Clouds
9:54 PM 45.0 °F 39.7 °F 36.0 °F 71% 30.40 in 10.0 mi South 10.4 mph - N/A   Scattered Clouds
10:54 PM 45.0 °F 39.3 °F 35.1 °F 68% 30.40 in 10.0 mi SSW 11.5 mph - N/A   Scattered Clouds
11:54 PM 44.1 °F 38.6 °F 34.0 °F 68% 30.40 in 10.0 mi SSW 10.4 mph - N/A   Scattered Clouds