Boston, MA

2:46 AM EDT on May 24, 2018 (GMT -0400)
Logan International

Weather History for KBOS - July, 2011

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Saturday, July 30, 2011

  Actual Average Record
Temperature  
Mean Temperature 81 °F 74 °F  
Max Temperature 89 °F 82 °F 98 °F (1933)
Min Temperature 73 °F 66 °F 52 °F (1880)
Degree Days  
Heating Degree Days 0 0  
Month to date heating degree days 0 0  
Since 1 June heating degree days 64 55  
Since 1 July heating degree days 0 0  
Cooling Degree Days 16 9  
Month to date cooling degree days 373 259  
Year to date cooling degree days 566 425  
Since 1 June cooling degree days 508 395  
Growing Degree Days 30 (Base 50)    
Moisture  
Dew Point 64 °F    
Average Humidity 65    
Maximum Humidity 94    
Minimum Humidity 36    
Precipitation  
Precipitation 0.00 in 0.13 in 2.30 in (1926)
Month to date precipitation 2.04 3.30  
Year to date precipitation 25.31 25.14  
Snow  
Snow 0.00 in 0.00 in 0.00 in (2002)
Month to date snowfall 0.0 0.0  
Since 1 June snowfall 0.0 0.0  
Since 1 July snowfall 0.0 0.0  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 29.82 in    
Wind  
Wind Speed 12 mph (WNW)    
Max Wind Speed 22 mph    
Max Gust Speed 31 mph    
Visibility 9 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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Astronomy

Jul. 30, 2011 Rise Set
Actual Time 5:34 AM EDT 8:06 PM EDT
Civil Twilight 5:02 AM EDT 8:37 PM EDT
Nautical Twilight 4:22 AM EDT 9:17 PM EDT
Astronomical Twilight 3:36 AM EDT 10:02 PM EDT
Moon 5:24 AM EDT (7/30) 7:49 PM EDT (7/30)
Length of Visible Light 15h 35m
Length of Day
14h 31m
Waning Crescent, 0% of the Moon is Illuminated
Jul 30
Waning Crescent
Jul 30
New
Aug 6
First Quarter
Aug 13
Full
Aug 21
Last Quarter

Hourly Weather History & Observations

Time (EDT) Temp. Heat Index Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:54 AM 75.0 °F - 72.0 °F 90% 29.73 in 7.0 mi SW 15.0 mph - 0.04 in   Mostly Cloudy
1:02 AM 75.2 °F - 71.6 °F 89% 29.72 in 6.0 mi SW 13.8 mph - N/A   Mostly Cloudy
1:54 AM 75.0 °F - 73.0 °F 94% 29.72 in 6.0 mi SW 11.5 mph - N/A   Mostly Cloudy
2:10 AM 75.2 °F - 73.4 °F 94% 29.71 in 6.0 mi SW 12.7 mph - N/A   Mostly Cloudy
2:25 AM 75.2 °F - 73.4 °F 94% 29.71 in 7.0 mi WSW 11.5 mph - N/A   Mostly Cloudy
2:54 AM 75.9 °F - 72.0 °F 87% 29.72 in 8.0 mi West 13.8 mph - N/A   Mostly Cloudy
3:31 AM 75.2 °F - 71.6 °F 89% 29.73 in 9.0 mi WNW 11.5 mph - N/A   Mostly Cloudy
3:54 AM 75.9 °F - 71.1 °F 85% 29.74 in 10.0 mi NNW 11.5 mph - N/A   Overcast
4:13 AM 75.2 °F - 69.8 °F 83% 29.75 in 10.0 mi NNW 6.9 mph - N/A   Scattered Clouds
4:54 AM 73.9 °F - 68.0 °F 82% 29.76 in 10.0 mi NW 9.2 mph - N/A   Scattered Clouds
5:54 AM 73.0 °F - 68.0 °F 84% 29.78 in 10.0 mi West 6.9 mph - N/A   Scattered Clouds
6:54 AM 73.9 °F - 66.9 °F 79% 29.77 in 10.0 mi West 10.4 mph - N/A   Partly Cloudy
7:54 AM 77.0 °F - 66.9 °F 71% 29.80 in 10.0 mi NW 11.5 mph - N/A   Partly Cloudy
8:54 AM 79.0 °F - 66.0 °F 64% 29.82 in 10.0 mi WNW 13.8 mph 24.2 mph N/A   Partly Cloudy
9:54 AM 82.0 °F 83.4 °F 64.0 °F 54% 29.82 in 10.0 mi NW 12.7 mph 25.3 mph N/A   Partly Cloudy
10:54 AM 84.0 °F 84.9 °F 63.0 °F 49% 29.84 in 10.0 mi NW 16.1 mph 24.2 mph N/A   Partly Cloudy
11:54 AM 84.9 °F 84.8 °F 60.1 °F 43% 29.84 in 10.0 mi WNW 16.1 mph 24.2 mph N/A   Partly Cloudy
12:54 PM 86.0 °F 85.4 °F 59.0 °F 40% 29.84 in 10.0 mi NW 16.1 mph 23.0 mph N/A   Partly Cloudy
1:54 PM 87.1 °F 86.5 °F 59.0 °F 39% 29.84 in 10.0 mi North 9.2 mph 20.7 mph N/A   Partly Cloudy
2:54 PM 88.0 °F 87.1 °F 59.0 °F 37% 29.85 in 10.0 mi NW 15.0 mph 21.9 mph N/A   Partly Cloudy
3:54 PM 88.0 °F 86.9 °F 57.9 °F 36% 29.86 in 10.0 mi NNW 18.4 mph 26.5 mph N/A   Partly Cloudy
4:54 PM 87.1 °F 86.5 °F 59.0 °F 39% 29.87 in 10.0 mi NNW 12.7 mph 24.2 mph N/A   Partly Cloudy
5:54 PM 86.0 °F 84.9 °F 57.0 °F 37% 29.87 in 10.0 mi NNW 16.1 mph 21.9 mph N/A   Partly Cloudy
6:54 PM 84.9 °F 83.9 °F 57.0 °F 38% 29.89 in 10.0 mi NNW 13.8 mph 21.9 mph N/A   Partly Cloudy
7:54 PM 82.9 °F 82.4 °F 57.0 °F 41% 29.91 in 10.0 mi NW 11.5 mph - N/A   Partly Cloudy
8:54 PM 81.0 °F 81.0 °F 57.0 °F 44% 29.93 in 10.0 mi NW 8.1 mph - N/A   Partly Cloudy
9:54 PM 80.1 °F 80.4 °F 57.0 °F 45% 29.94 in 10.0 mi NNW 6.9 mph - N/A   Partly Cloudy
10:54 PM 79.0 °F - 57.9 °F 48% 29.96 in 10.0 mi NW 8.1 mph - N/A   Clear
11:54 PM 78.1 °F - 57.9 °F 50% 29.97 in 10.0 mi WNW 9.2 mph - N/A   Clear