Boston, MA

9:31 PM EDT on September 25, 2017 (GMT -0400)
Logan International

Weather History for KBOS - July, 2011

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Saturday, July 9, 2011

  Actual Average Record
Temperature  
Mean Temperature 77 °F 73 °F  
Max Temperature 86 °F 81 °F 99 °F (1981)
Min Temperature 67 °F 65 °F 53 °F (1909)
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 12 8  
Month to date cooling degree days 101 71  
Year to date cooling degree days 294 237  
Since 1 June cooling degree days 236 207  
Growing Degree Days 25 (Base 50)    
Moisture  
Dew Point 61 °F    
Average Humidity 67    
Maximum Humidity 100    
Minimum Humidity 34    
Precipitation  
Precipitation 0.12 in 0.10 in 6.04 in (1921)
Month to date precipitation 0.44 0.83  
Year to date precipitation 23.71 22.67  
Sea Level Pressure  
Sea Level Pressure 29.79 in    
Wind  
Wind Speed 10 mph (NNW)    
Max Wind Speed 21 mph    
Max Gust Speed 31 mph    
Visibility 6 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

Daily Weather History Graph

Daily Weather History Graph

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Date:

Astronomy

Jul. 09, 2011 Rise Set
Actual Time 5:15 AM EDT 8:22 PM EDT
Civil Twilight 4:41 AM EDT 8:56 PM EDT
Nautical Twilight 3:57 AM EDT 9:39 PM EDT
Astronomical Twilight 3:05 AM EDT 10:31 PM EDT
Moon 2:57 PM EDT (7/9) 12:20 AM EDT (7/9)
Length of Visible Light 16h 14m
Length of Day
15h 06m
Waxing Gibbous, 66% of the Moon is Illuminated
Jul 9
Waxing Gibbous
Jul 15
Full
Jul 23
Last Quarter
Jul 30
New
Aug 6
First 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 71.1 °F - 68.0 °F 90% 29.77 in 2.0 mi North 6.9 mph - 0.07 in Rain Light Rain
1:29 AM 69.8 °F - 68.0 °F 94% 29.76 in 0.5 mi NNE 9.2 mph - 0.05 in Rain Rain
1:54 AM 66.9 °F - 66.9 °F 100% 29.75 in 0.5 mi NE 6.9 mph - 0.08 in Rain Light Rain
2:54 AM 68.0 °F - 66.9 °F 96% 29.74 in 0.5 mi East 5.8 mph - 0.04 in Rain Light Rain
3:31 AM 68.0 °F - 66.2 °F 94% 29.72 in 1.5 mi ENE 3.5 mph - 0.00 in Rain Light Rain
3:54 AM 69.1 °F - 66.0 °F 90% 29.73 in 3.0 mi NW 3.5 mph - 0.01 in Rain Light Rain
4:22 AM 69.8 °F - 66.2 °F 88% 29.72 in 3.0 mi North 5.8 mph - 0.00 in   Mostly Cloudy
4:54 AM 69.1 °F - 66.0 °F 90% 29.71 in 3.0 mi Calm Calm - 0.00 in   Overcast
5:54 AM 70.0 °F - 66.9 °F 90% 29.70 in 3.0 mi NW 3.5 mph - N/A   Mostly Cloudy
6:54 AM 70.0 °F - 66.9 °F 90% 29.72 in 3.0 mi NW 12.7 mph - N/A   Mostly Cloudy
7:01 AM 69.8 °F - 66.2 °F 88% 29.72 in 3.0 mi NW 10.4 mph - N/A   Mostly Cloudy
7:47 AM 73.4 °F - 66.2 °F 78% 29.71 in 3.0 mi NNW 8.1 mph - N/A   Mostly Cloudy
7:54 AM 73.0 °F - 68.0 °F 84% 29.71 in 3.0 mi NNW 6.9 mph - N/A   Mostly Cloudy
8:54 AM 75.9 °F - 68.0 °F 76% 29.72 in 10.0 mi NNW 8.1 mph - N/A   Scattered Clouds
9:54 AM 78.1 °F - 66.9 °F 68% 29.74 in 10.0 mi NW 10.4 mph 19.6 mph N/A   Scattered Clouds
10:54 AM 81.0 °F 82.5 °F 64.0 °F 56% 29.75 in 10.0 mi NW 15.0 mph 21.9 mph N/A   Scattered Clouds
11:54 AM 82.9 °F 83.3 °F 61.0 °F 47% 29.76 in 10.0 mi NNW 15.0 mph 24.2 mph N/A   Partly Cloudy
12:54 PM 84.9 °F 83.7 °F 55.9 °F 37% 29.78 in 10.0 mi NW 15.0 mph 25.3 mph N/A   Partly Cloudy
1:54 PM 84.0 °F 82.6 °F 54.0 °F 35% 29.79 in 10.0 mi NW 16.1 mph 24.2 mph N/A   Partly Cloudy
2:54 PM 84.0 °F 83.0 °F 55.9 °F 38% 29.79 in 10.0 mi NNW 13.8 mph 23.0 mph N/A   Scattered Clouds
3:54 PM 84.0 °F 82.9 °F 55.0 °F 37% 29.81 in 10.0 mi NNW 12.7 mph 21.9 mph N/A   Scattered Clouds
4:54 PM 82.9 °F 81.8 °F 53.1 °F 36% 29.82 in 10.0 mi NW 17.3 mph 26.5 mph N/A   Partly Cloudy
5:54 PM 82.9 °F 81.9 °F 54.0 °F 37% 29.84 in 10.0 mi North 16.1 mph 23.0 mph N/A   Partly Cloudy
6:54 PM 81.0 °F 80.5 °F 54.0 °F 39% 29.86 in 10.0 mi NNW 17.3 mph 24.2 mph N/A   Partly Cloudy
7:54 PM 80.1 °F 79.9 °F 53.1 °F 39% 29.88 in 10.0 mi NNW 11.5 mph 20.7 mph N/A   Partly Cloudy
8:54 PM 78.1 °F - 52.0 °F 40% 29.92 in 10.0 mi NNW 9.2 mph - N/A   Partly Cloudy
9:54 PM 75.9 °F - 52.0 °F 43% 29.96 in 10.0 mi NNW 10.4 mph - N/A   Partly Cloudy
10:54 PM 75.0 °F - 52.0 °F 44% 29.98 in 10.0 mi NNW 10.4 mph - N/A   Scattered Clouds
11:54 PM 73.9 °F - 52.0 °F 46% 29.99 in 10.0 mi NNW 6.9 mph - N/A   Mostly Cloudy