Weather History for KBOS - May, 2014

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Wednesday, May 21, 2014

  Actual Average Record
Temperature  
Mean Temperature 59 °F 60 °F  
Max Temperature 65 °F 68 °F 93 °F (1921)
Min Temperature 52 °F 51 °F 41 °F (1907)
Degree Days  
Heating Degree Days 6 7  
Month to date heating degree days 124 193  
Since 1 July heating degree days 5743 5574  
Cooling Degree Days 0 1  
Month to date cooling degree days 19 8  
Year to date cooling degree days 20 11  
Growing Degree Days 8 (Base 50)    
Moisture  
Dew Point 49 °F    
Average Humidity 74    
Maximum Humidity 86    
Minimum Humidity 62    
Precipitation  
Precipitation 0.00 in 0.11 in 2.24 in (1889)
Month to date precipitation 1.73 2.22  
Year to date precipitation 16.82 16.89  
Snow  
Snow 0.00 in 0.00 in 0.00 in (2002)
Month to date snowfall 0.0 0.1  
Since 1 July snowfall 58.9 43.9  
Snow Depth -    
Sea Level Pressure  
Sea Level Pressure 29.98 in    
Wind  
Wind Speed 7 mph (East)    
Max Wind Speed 16 mph    
Max Gust Speed 20 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

May. 21, 2014 Rise Set
Actual Time 5:17 AM EDT 8:04 PM EDT
Civil Twilight 4:44 AM EDT 8:37 PM EDT
Nautical Twilight 4:02 AM EDT 9:19 PM EDT
Astronomical Twilight 3:15 AM EDT 10:07 PM EDT
Moon 1:06 AM EDT (5/21) 12:33 PM EDT (5/21)
Length of Visible Light 15h 53m
Length of Day
14h 47m
Waning Gibbous, 49% of the Moon is Illuminated
May 21
Waning Gibbous
May 28
New
Jun 5
First Quarter
Jun 13
Full
Jun 19
Last 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 57.0 °F 45.0 °F 64% 29.98 in 10.0 mi SW 3.5 mph - N/A   Clear
1:54 AM 55.0 °F 46.0 °F 72% 29.97 in 10.0 mi ENE 4.6 mph - N/A   Clear
2:54 AM 53.1 °F 45.0 °F 74% 29.97 in 10.0 mi East 4.6 mph - N/A   Clear
3:54 AM 54.0 °F 45.0 °F 72% 29.97 in 10.0 mi Calm Calm - N/A   Clear
4:54 AM 52.0 °F 46.9 °F 83% 29.97 in 10.0 mi NNE 3.5 mph - N/A   Partly Cloudy
5:54 AM 54.0 °F 48.0 °F 80% 29.99 in 10.0 mi Calm Calm - N/A   Partly Cloudy
6:54 AM 55.9 °F 48.0 °F 75% 30.01 in 10.0 mi NNE 3.5 mph - N/A   Scattered Clouds
7:54 AM 59.0 °F 48.9 °F 69% 30.00 in 10.0 mi East 6.9 mph - N/A   Scattered Clouds
8:54 AM 60.1 °F 48.9 °F 67% 30.01 in 10.0 mi ENE 5.8 mph - N/A   Scattered Clouds
9:54 AM 61.0 °F 50.0 °F 67% 30.01 in 10.0 mi Variable 6.9 mph - N/A   Scattered Clouds
10:54 AM 61.0 °F 51.1 °F 70% 30.01 in 10.0 mi ESE 10.4 mph - N/A   Scattered Clouds
11:54 AM 62.1 °F 51.1 °F 67% 29.99 in 10.0 mi ESE 10.4 mph - N/A   Scattered Clouds
12:54 PM 62.1 °F 51.1 °F 67% 29.99 in 10.0 mi SE 11.5 mph - N/A   Scattered Clouds
1:54 PM 64.9 °F 51.1 °F 61% 29.98 in 10.0 mi East 11.5 mph - N/A   Scattered Clouds
2:54 PM 63.0 °F 50.0 °F 63% 29.96 in 10.0 mi East 15.0 mph - N/A   Scattered Clouds
3:54 PM 61.0 °F 51.1 °F 70% 29.96 in 10.0 mi ESE 12.7 mph - N/A   Scattered Clouds
4:54 PM 60.1 °F 51.1 °F 72% 29.95 in 10.0 mi East 12.7 mph - N/A   Scattered Clouds
5:54 PM 59.0 °F 50.0 °F 72% 29.96 in 10.0 mi ESE 13.8 mph - N/A   Scattered Clouds
6:54 PM 60.1 °F 48.9 °F 67% 29.96 in 10.0 mi ESE 11.5 mph - N/A   Scattered Clouds
7:54 PM 59.0 °F 50.0 °F 72% 29.95 in 10.0 mi East 9.2 mph - N/A   Scattered Clouds
8:54 PM 57.0 °F 51.1 °F 81% 29.97 in 10.0 mi ESE 5.8 mph - N/A   Scattered Clouds
9:54 PM 57.0 °F 52.0 °F 83% 29.96 in 10.0 mi ESE 8.1 mph - N/A   Mostly Cloudy
10:54 PM 55.9 °F 52.0 °F 87% 29.96 in 10.0 mi ESE 4.6 mph - N/A   Mostly Cloudy
11:54 PM 57.0 °F 51.1 °F 81% 29.97 in 10.0 mi Calm Calm - N/A   Mostly Cloudy