Boston, MA

10:15 PM EST on December 14, 2017 (GMT -0500)
Logan International

Weather History for KBOS - September, 2013

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Sunday, September 8, 2013

  Actual Average Record
Temperature  
Mean Temperature 67 °F 68 °F  
Max Temperature 78 °F 75 °F 96 °F (2015)
Min Temperature 56 °F 60 °F 48 °F (1978)
Degree Days  
Heating Degree Days 0 1  
Month to date heating degree days 4 8  
Since 1 July heating degree days 6 21  
Cooling Degree Days 2 4  
Month to date cooling degree days 42 36  
Year to date cooling degree days 863 695  
Growing Degree Days 18 (Base 50)    
Moisture  
Dew Point 50 °F    
Average Humidity 51    
Maximum Humidity 73    
Minimum Humidity 29    
Precipitation  
Precipitation T in 0.10 in 1.65 in (2004)
Month to date precipitation 0.85 0.82  
Year to date precipitation 31.05 29.44  
Sea Level Pressure  
Sea Level Pressure 29.85 in    
Wind  
Wind Speed 13 mph (WNW)    
Max Wind Speed 26 mph    
Max Gust Speed 33 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

Sep. 08, 2013 Rise Set
Actual Time 6:16 AM EDT 7:05 PM EDT
Civil Twilight 5:48 AM EDT 7:34 PM EDT
Nautical Twilight 5:14 AM EDT 8:07 PM EDT
Astronomical Twilight 4:39 AM EDT 8:42 PM EDT
Moon 9:35 AM EDT (9/8) 8:33 PM EDT (9/8)
Length of Visible Light 13h 45m
Length of Day
12h 48m
Waxing Crescent, 11% of the Moon is Illuminated
Sep 8
Waxing Crescent
Sep 12
First Quarter
Sep 19
Full
Sep 26
Last Quarter
Oct 4
New

Hourly Weather History & Observations

Time (EDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:54 AM 66.9 °F 53.1 °F 61% 29.85 in 10.0 mi WSW 10.4 mph - 0.00 in   Overcast
1:54 AM 66.9 °F 54.0 °F 63% 29.83 in 10.0 mi WSW 10.4 mph - N/A   Overcast
2:54 AM 66.9 °F 55.0 °F 66% 29.82 in 10.0 mi West 9.2 mph - 0.00 in   Overcast
3:54 AM 64.9 °F 55.9 °F 73% 29.80 in 10.0 mi WSW 6.9 mph - 0.00 in   Overcast
4:54 AM 64.9 °F 55.9 °F 73% 29.78 in 10.0 mi WSW 8.1 mph - N/A   Mostly Cloudy
5:54 AM 64.9 °F 55.9 °F 73% 29.76 in 10.0 mi SW 12.7 mph - N/A   Mostly Cloudy
6:54 AM 64.9 °F 55.9 °F 73% 29.77 in 10.0 mi WSW 11.5 mph - N/A   Mostly Cloudy
7:54 AM 66.0 °F 55.0 °F 68% 29.76 in 10.0 mi West 12.7 mph - N/A   Mostly Cloudy
8:54 AM 69.1 °F 55.9 °F 63% 29.76 in 10.0 mi WNW 12.7 mph - N/A   Scattered Clouds
9:54 AM 73.0 °F 57.9 °F 59% 29.75 in 10.0 mi WNW 11.5 mph 18.4 mph N/A   Partly Cloudy
10:54 AM 75.0 °F 57.9 °F 55% 29.75 in 10.0 mi WNW 16.1 mph 23.0 mph N/A   Mostly Cloudy
11:54 AM 77.0 °F 57.9 °F 52% 29.76 in 10.0 mi WNW 15.0 mph 20.7 mph N/A   Scattered Clouds
12:54 PM 75.0 °F 57.0 °F 53% 29.76 in 10.0 mi North 15.0 mph 21.9 mph N/A   Mostly Cloudy
1:54 PM 75.0 °F 53.1 °F 46% 29.79 in 10.0 mi NNW 21.9 mph 28.8 mph N/A   Partly Cloudy
2:54 PM 75.0 °F 45.0 °F 34% 29.82 in 10.0 mi NNW 19.6 mph 28.8 mph N/A   Mostly Cloudy
3:54 PM 73.9 °F 41.0 °F 30% 29.84 in 10.0 mi NNW 17.3 mph 31.1 mph N/A   Mostly Cloudy
4:54 PM 71.1 °F 37.9 °F 30% 29.87 in 10.0 mi NNW 19.6 mph 33.4 mph N/A   Scattered Clouds
5:54 PM 68.0 °F 37.0 °F 32% 29.91 in 10.0 mi NNW 21.9 mph 31.1 mph N/A   Scattered Clouds
6:54 PM 64.9 °F 39.0 °F 39% 29.93 in 10.0 mi NNW 19.6 mph 27.6 mph N/A   Clear
7:54 PM 62.1 °F 39.0 °F 43% 29.98 in 10.0 mi North 9.2 mph - N/A   Clear
8:54 PM 61.0 °F 37.9 °F 42% 30.03 in 10.0 mi NNW 9.2 mph 17.3 mph N/A   Clear
9:54 PM 60.1 °F 39.0 °F 46% 30.06 in 10.0 mi NNW 9.2 mph - N/A   Clear
10:54 PM 59.0 °F 37.9 °F 46% 30.08 in 10.0 mi NNW 9.2 mph - N/A   Clear
11:54 PM 57.9 °F 37.9 °F 47% 30.09 in 10.0 mi NW 10.4 mph - N/A   Clear