Weather History for KBOS - September, 2013

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Saturday, September 21, 2013

  Actual Average Record
Temperature  
Mean Temperature 67 °F 63 °F  
Max Temperature 77 °F 71 °F 94 °F (1895)
Min Temperature 57 °F 56 °F 40 °F (1929)
Degree Days  
Heating Degree Days 0 4  
Month to date heating degree days 34 39  
Since 1 July heating degree days 36 52  
Cooling Degree Days 2 2  
Month to date cooling degree days 82 70  
Year to date cooling degree days 903 729  
Growing Degree Days 17 (Base 50)    
Moisture  
Dew Point 59 °F    
Average Humidity 76    
Maximum Humidity 97    
Minimum Humidity 54    
Precipitation  
Precipitation T in 0.13 in 2.77 in (1961)
Month to date precipitation 1.84 2.32  
Year to date precipitation 32.04 30.94  
Sea Level Pressure  
Sea Level Pressure 29.93 in    
Wind  
Wind Speed 13 mph (SSW)    
Max Wind Speed 26 mph    
Max Gust Speed 32 mph    
Visibility 9 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Sep. 21, 2013 Rise Set
Actual Time 6:30 AM EDT 6:42 PM EDT
Civil Twilight 6:02 AM EDT 7:10 PM EDT
Nautical Twilight 5:29 AM EDT 7:43 PM EDT
Astronomical Twilight 4:55 AM EDT 8:17 PM EDT
Moon 7:47 PM EDT (9/21) 8:49 AM EDT (9/21)
Length of Visible Light 13h 08m
Length of Day
12h 12m
Waning Gibbous, 94% of the Moon is Illuminated
Sep 21
Waning Gibbous
Sep 26
Last Quarter
Oct 4
New
Oct 11
First Quarter
Oct 18
Full

Hourly Weather History & Observations

Time (EDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:54 AM 59.0 °F 55.0 °F 87% 30.03 in 10.0 mi South 4.6 mph - N/A   Clear
1:54 AM 57.9 °F 54.0 °F 87% 30.04 in 10.0 mi SSW 3.5 mph - N/A   Clear
2:29 AM 57.2 °F 53.6 °F 88% 30.03 in 10.0 mi SW 6.9 mph - N/A   Partly Cloudy
2:33 AM 57.2 °F 55.4 °F 94% 30.03 in 10.0 mi WSW 6.9 mph - N/A   Mostly Cloudy
2:54 AM 59.0 °F 57.0 °F 93% 30.03 in 9.0 mi SW 8.1 mph - N/A   Overcast
3:32 AM 60.8 °F 57.2 °F 88% 30.03 in 10.0 mi SW 11.5 mph - N/A   Overcast
3:43 AM 60.8 °F 57.2 °F 88% 30.03 in 10.0 mi WSW 9.2 mph - N/A   Overcast
3:54 AM 60.1 °F 57.0 °F 90% 30.03 in 10.0 mi WSW 10.4 mph - N/A   Overcast
4:44 AM 60.8 °F 57.2 °F 88% 30.02 in 10.0 mi SW 8.1 mph - N/A   Mostly Cloudy
4:54 AM 60.1 °F 57.0 °F 90% 30.02 in 10.0 mi SW 9.2 mph - N/A   Mostly Cloudy
5:01 AM 60.8 °F 57.2 °F 88% 30.02 in 10.0 mi SW 6.9 mph - N/A   Scattered Clouds
5:54 AM 57.9 °F 55.9 °F 93% 30.00 in 10.0 mi South 5.8 mph - N/A   Mostly Cloudy
6:46 AM 57.2 °F 55.4 °F 94% 30.00 in 6.0 mi South 5.8 mph - N/A   Mostly Cloudy
6:54 AM 57.9 °F 55.9 °F 93% 30.00 in 5.0 mi South 6.9 mph - N/A   Mostly Cloudy
7:03 AM 57.2 °F 57.2 °F 100% 30.00 in 2.0 mi South 9.2 mph - N/A   Mostly Cloudy
7:07 AM 59.0 °F 57.2 °F 94% 30.00 in 0.5 mi South 8.1 mph - N/A   Overcast
7:36 AM 60.8 °F 57.2 °F 88% 30.00 in 2.0 mi South 9.2 mph - N/A   Overcast
7:54 AM 61.0 °F 59.0 °F 93% 30.00 in 2.0 mi South 6.9 mph - N/A   Overcast
8:03 AM 60.8 °F 59.0 °F 94% 30.00 in 5.0 mi SSW 6.9 mph - N/A   Overcast
8:42 AM 62.6 °F 59.0 °F 88% 30.00 in 7.0 mi SSW 6.9 mph - N/A   Mostly Cloudy
8:54 AM 64.0 °F 59.0 °F 84% 30.00 in 7.0 mi South 6.9 mph - N/A   Mostly Cloudy
9:54 AM 69.1 °F 59.0 °F 70% 29.98 in 10.0 mi SSW 9.2 mph - N/A   Mostly Cloudy
10:13 AM 69.8 °F 57.2 °F 64% 29.98 in 10.0 mi SSW 12.7 mph - N/A   Mostly Cloudy
10:54 AM 70.0 °F 57.9 °F 65% 29.96 in 10.0 mi SSW 13.8 mph - N/A   Mostly Cloudy
11:12 AM 71.6 °F 57.2 °F 60% 29.95 in 10.0 mi SSW 18.4 mph - N/A   Mostly Cloudy
11:54 AM 73.0 °F 59.0 °F 61% 29.93 in 10.0 mi SSW 15.0 mph - N/A   Mostly Cloudy
12:54 PM 73.9 °F 59.0 °F 59% 29.91 in 10.0 mi SSW 19.6 mph 23.0 mph N/A   Mostly Cloudy
1:54 PM 73.0 °F 60.1 °F 64% 29.89 in 10.0 mi South 13.8 mph - N/A   Mostly Cloudy
2:54 PM 75.0 °F 59.0 °F 57% 29.86 in 10.0 mi SSW 19.6 mph - N/A   Scattered Clouds
3:54 PM 75.0 °F 57.0 °F 53% 29.84 in 10.0 mi SSW 20.7 mph 31.1 mph N/A   Scattered Clouds
4:54 PM 73.9 °F 57.9 °F 57% 29.82 in 10.0 mi South 19.6 mph - N/A   Mostly Cloudy
5:54 PM 73.0 °F 60.1 °F 64% 29.81 in 10.0 mi South 18.4 mph 29.9 mph N/A   Mostly Cloudy
6:54 PM 71.1 °F 61.0 °F 70% 29.81 in 10.0 mi South 18.4 mph - N/A   Mostly Cloudy
7:54 PM 70.0 °F 61.0 °F 73% 29.81 in 10.0 mi South 12.7 mph - N/A   Mostly Cloudy
8:54 PM 70.0 °F 63.0 °F 78% 29.80 in 10.0 mi South 13.8 mph - N/A   Mostly Cloudy
9:19 PM 69.8 °F 62.6 °F 78% 29.79 in 10.0 mi South 15.0 mph - N/A   Overcast
9:54 PM 69.1 °F 63.0 °F 81% 29.78 in 10.0 mi South 11.5 mph - N/A   Mostly Cloudy
10:14 PM 68.0 °F 62.6 °F 83% 29.78 in 10.0 mi South 12.7 mph - N/A   Scattered Clouds
10:54 PM 68.0 °F 63.0 °F 84% 29.76 in 10.0 mi South 10.4 mph - 0.00 in   Mostly Cloudy
11:54 PM 69.1 °F 63.0 °F 81% 29.74 in 10.0 mi South 13.8 mph - N/A   Overcast