Weather Almanac for Boston, MA

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Tuesday, September 15, 2015

  Average Record
Temperature  
Mean Temperature 65 °F  
Max Temperature 73 °F 94 °F (1915)
Min Temperature 58 °F 41 °F (1913)
Degree Days  
Heating Degree Days 2  
Month to date heating degree days   20  
Since 1 July heating degree days   33  
Cooling Degree Days 3  
Month to date cooling degree days   58  
Year to date cooling degree days   717  
Moisture  
Dew Point    
Average Humidity    
Maximum Humidity    
Minimum Humidity    
Precipitation  
Precipitation 0.11 in 3.48 in (1904)
Month to date precipitation   1.60  
Year to date precipitation   30.22  
Wind  
Wind Speed    
Max Wind Speed    
Max Gust Speed    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Sep. 15, 2015 Rise Set
Actual Time 6:23 AM EDT 6:54 PM EDT
Civil Twilight 5:55 AM EDT 7:22 PM EDT
Nautical Twilight 5:22 AM EDT 7:55 PM EDT
Astronomical Twilight 4:47 AM EDT 8:29 PM EDT
Moon 8:30 AM EDT (9/15) 8:05 PM EDT (9/15)
Length of Visible Light 13h 26m
Length of Day
12h 30m
Waxing Crescent, 5% of the Moon is Illuminated
Sep 15
Waxing Crescent
Sep 21
First Quarter
Sep 27
Full
Oct 4
Last Quarter
Oct 12
New

No daily or hourly history data available