Boston, MA

4:22 AM EDT on September 25, 2017 (GMT -0400)
Logan International

Weather History for KBOS - August, 2012

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Friday, August 10, 2012

  Actual Average Record
Temperature  
Mean Temperature 77 °F 73 °F  
Max Temperature 84 °F 81 °F 101 °F (1949)
Min Temperature 69 °F 65 °F 53 °F (1964)
Degree Days  
Heating Degree Days 0 0  
Month to date heating degree days 0 0  
Since 1 June heating degree days 74 61  
Since 1 July heating degree days 0 6  
Cooling Degree Days 12 8  
Month to date cooling degree days 118 84  
Year to date cooling degree days 641 516  
Since 1 June cooling degree days 582 486  
Growing Degree Days 26 (Base 50)    
Moisture  
Dew Point 70 °F    
Average Humidity 83    
Maximum Humidity 100    
Minimum Humidity 65    
Precipitation  
Precipitation 1.17 in 0.11 in 2.97 in (1917)
Month to date precipitation 2.05 1.20  
Year to date precipitation 22.04 26.47  
Sea Level Pressure  
Sea Level Pressure 29.88 in    
Wind  
Wind Speed 9 mph (SE)    
Max Wind Speed 23 mph    
Max Gust Speed 26 mph    
Visibility 7 miles    
Events Fog , Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Aug. 10, 2012 Rise Set
Actual Time 5:46 AM EDT 7:51 PM EDT
Civil Twilight 5:15 AM EDT 8:22 PM EDT
Nautical Twilight 4:37 AM EDT 8:59 PM EDT
Astronomical Twilight 3:56 AM EDT 9:40 PM EDT
Moon No Moon Rise 2:30 PM EDT (8/10)
Length of Visible Light 15h 06m
Length of Day
14h 05m
Last Quarter, 42% of the Moon is Illuminated
Aug 10
Last Quarter
Aug 17
New
Aug 24
First Quarter
Aug 31
Full
Sep 8
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 73.9 °F - 71.1 °F 91% 29.92 in 10.0 mi South 10.4 mph - N/A   Scattered Clouds
1:54 AM 73.9 °F - 70.0 °F 87% 29.91 in 10.0 mi SSW 8.1 mph - N/A   Scattered Clouds
2:54 AM 73.0 °F - 70.0 °F 90% 29.91 in 10.0 mi SSW 5.8 mph - N/A   Scattered Clouds
3:54 AM 72.0 °F - 70.0 °F 93% 29.91 in 9.0 mi South 5.8 mph - N/A   Scattered Clouds
4:54 AM 71.1 °F - 69.1 °F 93% 29.91 in 7.0 mi SSE 3.5 mph - N/A   Scattered Clouds
5:54 AM 71.1 °F - 69.1 °F 93% 29.93 in 5.0 mi Calm Calm - N/A   Scattered Clouds
6:02 AM 71.6 °F - 69.8 °F 94% 29.93 in 5.0 mi Calm Calm - N/A   Scattered Clouds
6:15 AM 71.6 °F - 69.8 °F 94% 29.93 in 6.0 mi Calm Calm - N/A   Mostly Cloudy
6:54 AM 73.0 °F - 71.1 °F 93% 29.94 in 7.0 mi South 4.6 mph - N/A   Overcast
7:18 AM 71.6 °F - 69.8 °F 94% 29.94 in 5.0 mi SE 4.6 mph - N/A   Mostly Cloudy
7:40 AM 73.4 °F - 69.8 °F 88% 29.93 in 5.0 mi SE 3.5 mph - N/A   Scattered Clouds
7:54 AM 73.0 °F - 71.1 °F 93% 29.94 in 6.0 mi SSE 3.5 mph - N/A   Mostly Cloudy
8:01 AM 73.4 °F - 71.6 °F 94% 29.94 in 6.0 mi SSE 4.6 mph - N/A   Mostly Cloudy
8:20 AM 75.2 °F - 71.6 °F 89% 29.93 in 8.0 mi SE 4.6 mph - N/A   Scattered Clouds
8:54 AM 75.9 °F - 71.1 °F 85% 29.93 in 9.0 mi East 5.8 mph - N/A   Mostly Cloudy
8:57 AM 75.2 °F - 71.6 °F 89% 29.93 in 8.0 mi East 8.1 mph - N/A   Mostly Cloudy
9:24 AM 75.2 °F - 69.8 °F 83% 29.93 in 8.0 mi East 8.1 mph - N/A   Mostly Cloudy
9:54 AM 78.1 °F - 71.1 °F 79% 29.93 in 10.0 mi East 9.2 mph - N/A   Mostly Cloudy
10:54 AM 75.9 °F - 70.0 °F 82% 29.93 in 10.0 mi East 10.4 mph - N/A   Overcast
11:54 AM 77.0 °F - 70.0 °F 79% 29.91 in 10.0 mi East 13.8 mph - N/A   Overcast
12:54 PM 77.0 °F - 70.0 °F 79% 29.89 in 10.0 mi ESE 15.0 mph - N/A   Overcast
1:54 PM 80.1 °F 83.2 °F 70.0 °F 71% 29.87 in 8.0 mi ESE 10.4 mph - N/A   Overcast
2:54 PM 82.0 °F 85.5 °F 69.1 °F 65% 29.87 in 8.0 mi South 16.1 mph - N/A   Overcast
3:54 PM 78.1 °F - 69.1 °F 74% 29.86 in 10.0 mi SSE 12.7 mph - N/A   Overcast
4:27 PM 75.2 °F - 71.6 °F 89% 29.87 in 7.0 mi South 15.0 mph - 0.00 in Rain Light Rain
4:54 PM 75.0 °F - 71.1 °F 87% 29.86 in 5.0 mi SSE 15.0 mph 23.0 mph 0.04 in Rain Light Rain
5:07 PM 73.4 °F - 71.6 °F 94% 29.86 in 4.0 mi SE 9.2 mph - 0.02 in Rain Rain
5:35 PM 71.6 °F - 69.8 °F 94% 29.84 in 3.0 mi ESE 11.5 mph - 0.07 in Rain Rain
5:45 PM 71.6 °F - 69.8 °F 94% 29.84 in 2.5 mi East 11.5 mph - 0.10 in Rain Rain
5:54 PM 71.1 °F - 69.1 °F 93% 29.83 in 2.0 mi East 12.7 mph - 0.12 in Rain Light Rain
6:11 PM 69.8 °F - 69.8 °F 100% 29.84 in 1.0 mi ESE 13.8 mph - 0.02 in Rain Light Rain
6:33 PM 71.6 °F - 69.8 °F 94% 29.84 in 0.8 mi ESE 12.7 mph - 0.29 in Rain Heavy Rain
6:54 PM 70.0 °F - 69.1 °F 97% 29.82 in 1.2 mi NNE 5.8 mph - 0.70 in Rain Heavy Rain
6:59 PM 69.8 °F - 69.8 °F 100% 29.82 in 0.5 mi Variable 3.5 mph - 0.11 in Fog , Rain Heavy Rain
7:10 PM 69.8 °F - 68.0 °F 94% 29.81 in 1.5 mi ESE 21.9 mph 26.5 mph 0.29 in Rain Rain
7:14 PM 69.8 °F - 68.0 °F 94% 29.80 in 2.0 mi ESE 16.1 mph 26.5 mph 0.29 in Rain Light Rain
7:24 PM 69.8 °F - 69.8 °F 100% 29.81 in 3.0 mi SE 12.7 mph - 0.29 in Rain Light Rain
7:54 PM 70.0 °F - 69.1 °F 97% 29.81 in 4.0 mi SE 8.1 mph - 0.31 in Rain Light Rain
8:54 PM 73.9 °F - 71.1 °F 91% 29.81 in 7.0 mi South 8.1 mph - 0.00 in   Overcast
9:01 PM 73.4 °F - 71.6 °F 94% 29.81 in 10.0 mi South 9.2 mph - N/A   Overcast
9:54 PM 73.9 °F - 72.0 °F 93% 29.81 in 10.0 mi SSW 9.2 mph - N/A   Overcast
10:15 PM 75.2 °F - 71.6 °F 89% 29.80 in 10.0 mi SSW 11.5 mph - N/A   Overcast
10:54 PM 73.9 °F - 71.1 °F 91% 29.81 in 10.0 mi SSW 9.2 mph - N/A   Overcast
11:54 PM 73.9 °F - 71.1 °F 91% 29.81 in 10.0 mi WSW 11.5 mph - N/A   Overcast