Weather History for Boston, MA

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Saturday, September 14, 2013

  Actual Average Record
Temperature  
Mean Temperature 63 °F 66 °F  
Max Temperature 68 °F 73 °F 92 °F (1931)
Min Temperature 57 °F 58 °F 40 °F (1884)
Degree Days  
Heating Degree Days 2 2  
Month to date heating degree days 9 18  
Since 1 July heating degree days 11 31  
Cooling Degree Days 0 3  
Month to date cooling degree days 80 55  
Year to date cooling degree days 901 714  
Growing Degree Days 14 (Base 50)    
Moisture  
Dew Point 51 °F    
Average Humidity 64    
Maximum Humidity 75    
Minimum Humidity 52    
Precipitation  
Precipitation T in 0.12 in 2.46 in (1944)
Month to date precipitation 1.84 1.49  
Year to date precipitation 32.04 30.11  
Sea Level Pressure  
Sea Level Pressure 29.90 in    
Wind  
Wind Speed 10 mph (WNW)    
Max Wind Speed 16 mph    
Max Gust Speed 22 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Sep. 14, 2013 Rise Set
Actual Time 6:23 AM EDT 6:55 PM EDT
Civil Twilight 5:54 AM EDT 7:23 PM EDT
Nautical Twilight 5:21 AM EDT 7:56 PM EDT
Astronomical Twilight 4:47 AM EDT 8:30 PM EDT
Moon 3:38 PM EDT (9/14) 12:46 AM EDT (9/14)
Length of Visible Light 13h 28m
Length of Day
12h 31m
Waxing Gibbous, 72% of the Moon is Illuminated
Sep 14
Waxing Gibbous
Sep 19
Full
Sep 26
Last Quarter
Oct 4
New
Oct 11
First Quarter

Hourly Weather History & Observations

Time (EDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:54 AM 61.0 °F 52.0 °F 72% 29.76 in 10.0 mi NW 12.7 mph 20.7 mph N/A   Overcast
1:54 AM 61.0 °F 51.1 °F 70% 29.78 in 10.0 mi WNW 11.5 mph - N/A   Overcast
2:54 AM 60.1 °F 52.0 °F 75% 29.78 in 10.0 mi NW 8.1 mph - 0.00 in   Overcast
3:54 AM 61.0 °F 52.0 °F 72% 29.79 in 10.0 mi WNW 9.2 mph 19.6 mph N/A   Overcast
4:54 AM 60.1 °F 51.1 °F 72% 29.80 in 10.0 mi NW 10.4 mph - N/A   Overcast
5:54 AM 60.1 °F 51.1 °F 72% 29.82 in 10.0 mi WNW 9.2 mph - N/A   Mostly Cloudy
6:54 AM 59.0 °F 51.1 °F 75% 29.83 in 10.0 mi WNW 10.4 mph - N/A   Overcast
7:54 AM 61.0 °F 52.0 °F 72% 29.86 in 10.0 mi NW 10.4 mph - N/A   Scattered Clouds
8:54 AM 61.0 °F 51.1 °F 70% 29.87 in 10.0 mi WNW 12.7 mph - N/A   Overcast
9:54 AM 63.0 °F 51.1 °F 65% 29.89 in 10.0 mi West 11.5 mph - N/A   Mostly Cloudy
10:54 AM 64.0 °F 51.1 °F 63% 29.90 in 10.0 mi WNW 10.4 mph - N/A   Mostly Cloudy
11:54 AM 66.0 °F 52.0 °F 60% 29.90 in 10.0 mi Variable 5.8 mph - N/A   Mostly Cloudy
12:54 PM 66.0 °F 51.1 °F 59% 29.90 in 10.0 mi WNW 9.2 mph - N/A   Overcast
1:54 PM 66.9 °F 51.1 °F 57% 29.91 in 10.0 mi WNW 10.4 mph - N/A   Overcast
2:54 PM 66.0 °F 51.1 °F 59% 29.91 in 10.0 mi West 10.4 mph 16.1 mph N/A   Mostly Cloudy
3:54 PM 66.9 °F 50.0 °F 54% 29.92 in 10.0 mi WNW 9.2 mph - N/A   Mostly Cloudy
4:54 PM 66.9 °F 48.9 °F 52% 29.94 in 10.0 mi WNW 9.2 mph - N/A   Mostly Cloudy
5:54 PM 66.9 °F 50.0 °F 54% 29.95 in 10.0 mi WNW 9.2 mph - N/A   Scattered Clouds
6:54 PM 64.0 °F 50.0 °F 60% 29.98 in 10.0 mi WNW 16.1 mph 21.9 mph N/A   Partly Cloudy
7:54 PM 63.0 °F 48.9 °F 60% 30.00 in 10.0 mi NW 11.5 mph - N/A   Partly Cloudy
8:54 PM 62.1 °F 48.0 °F 60% 30.03 in 10.0 mi NNW 9.2 mph - N/A   Partly Cloudy
9:54 PM 61.0 °F 48.0 °F 62% 30.04 in 10.0 mi WNW 5.8 mph - N/A   Partly Cloudy
10:54 PM 60.1 °F 48.9 °F 67% 30.05 in 10.0 mi West 8.1 mph - N/A   Clear
11:54 PM 59.0 °F 48.9 °F 69% 30.06 in 10.0 mi WNW 9.2 mph - N/A   Clear