Weather History for KBOS - April, 2014

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Monday, April 21, 2014

  Actual Average Record
Temperature  
Mean Temperature 53 °F 50 °F  
Max Temperature 69 °F 58 °F 88 °F (1957)
Min Temperature 36 °F 42 °F 21 °F (1875)
Degree Days  
Heating Degree Days 12 15  
Month to date heating degree days 354 388  
Since 1 July heating degree days 5472 5259  
Cooling Degree Days 0 0  
Month to date cooling degree days 1 0  
Year to date cooling degree days 1 0  
Growing Degree Days 2 (Base 50)    
Moisture  
Dew Point 32 °F    
Average Humidity 52    
Maximum Humidity 82    
Minimum Humidity 22    
Precipitation  
Precipitation 0.00 in 0.11 in 3.32 in (1991)
Month to date precipitation 2.26 2.72  
Year to date precipitation 14.11 13.65  
Sea Level Pressure  
Sea Level Pressure 30.08 in    
Wind  
Wind Speed 9 mph (SSW)    
Max Wind Speed 17 mph    
Max Gust Speed 24 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Apr. 21, 2014 Rise Set
Actual Time 5:53 AM EDT 7:32 PM EDT
Civil Twilight 5:24 AM EDT 8:02 PM EDT
Nautical Twilight 4:48 AM EDT 8:38 PM EDT
Astronomical Twilight 4:09 AM EDT 9:16 PM EDT
Moon 1:01 AM EDT (4/21) 11:15 AM EDT (4/21)
Length of Visible Light 14h 38m
Length of Day
13h 38m
Waning Gibbous, 58% of the Moon is Illuminated
Apr 21
Waning Gibbous
Apr 22
Last Quarter
Apr 29
New
May 6
First Quarter
May 14
Full

Hourly Weather History & Observations

Time (EDT) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:54 AM 39.9 °F 35.8 °F 33.1 °F 77% 30.33 in 10.0 mi SSW 5.8 mph - N/A   Partly Cloudy
1:54 AM 39.9 °F 36.7 °F 32.0 °F 73% 30.30 in 10.0 mi SSW 4.6 mph - N/A   Scattered Clouds
2:54 AM 37.9 °F 33.5 °F 30.9 °F 76% 30.27 in 10.0 mi SSW 5.8 mph - N/A   Clear
3:54 AM 37.9 °F 33.5 °F 32.0 °F 79% 30.27 in 10.0 mi SSW 5.8 mph - N/A   Clear
4:54 AM 37.9 °F 33.5 °F 30.9 °F 76% 30.25 in 10.0 mi SW 5.8 mph - N/A   Partly Cloudy
5:54 AM 37.0 °F 31.6 °F 30.0 °F 76% 30.24 in 10.0 mi SSW 6.9 mph - N/A   Scattered Clouds
6:54 AM 39.0 °F 34.8 °F 30.9 °F 73% 30.23 in 10.0 mi SSW 5.8 mph - N/A   Scattered Clouds
7:54 AM 42.1 °F 37.7 °F 35.1 °F 76% 30.23 in 10.0 mi South 6.9 mph - N/A   Scattered Clouds
8:54 AM 48.0 °F - 32.0 °F 54% 30.20 in 10.0 mi SSW 9.2 mph - N/A   Scattered Clouds
9:54 AM 52.0 °F - 27.0 °F 38% 30.18 in 10.0 mi SSW 6.9 mph - N/A   Scattered Clouds
10:54 AM 55.0 °F - 23.0 °F 29% 30.15 in 10.0 mi SSW 8.1 mph - N/A   Mostly Cloudy
11:54 AM 59.0 °F - 23.0 °F 25% 30.12 in 10.0 mi South 8.1 mph - N/A   Mostly Cloudy
12:54 PM 55.0 °F - 35.1 °F 47% 30.06 in 10.0 mi ESE 10.4 mph - N/A   Mostly Cloudy
1:54 PM 57.9 °F - 36.0 °F 44% 30.03 in 10.0 mi ESE 9.2 mph - N/A   Mostly Cloudy
2:54 PM 63.0 °F - 34.0 °F 34% 29.99 in 10.0 mi SE 8.1 mph - N/A   Mostly Cloudy
3:54 PM 66.9 °F - 28.0 °F 23% 29.95 in 10.0 mi South 13.8 mph - N/A   Mostly Cloudy
4:54 PM 68.0 °F - 28.9 °F 23% 29.92 in 10.0 mi SSW 11.5 mph - N/A   Mostly Cloudy
5:54 PM 64.9 °F - 34.0 °F 32% 29.90 in 10.0 mi South 15.0 mph - N/A   Scattered Clouds
6:54 PM 62.1 °F - 35.1 °F 37% 29.88 in 10.0 mi SSW 11.5 mph - N/A   Scattered Clouds
7:54 PM 57.9 °F - 32.0 °F 37% 29.89 in 10.0 mi South 10.4 mph - N/A   Scattered Clouds
8:54 PM 55.0 °F - 37.0 °F 51% 29.88 in 10.0 mi South 10.4 mph - N/A   Scattered Clouds
9:54 PM 53.1 °F - 37.0 °F 55% 29.88 in 10.0 mi SSW 12.7 mph - N/A   Scattered Clouds
10:54 PM 52.0 °F - 37.9 °F 59% 29.87 in 10.0 mi SW 10.4 mph - N/A   Scattered Clouds
11:54 PM 51.1 °F - 37.9 °F 61% 29.86 in 10.0 mi SW 11.5 mph - N/A   Mostly Cloudy