Boston, MA

4:33 AM EDT on May 23, 2017 (GMT -0400)
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Weather History for KBOS - August, 2012

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Saturday, August 4, 2012

  Actual Average Record
Temperature  
Mean Temperature 78 °F 73 °F  
Max Temperature 82 °F 81 °F 96 °F (1928)
Min Temperature 74 °F 66 °F 52 °F (1900)
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 13 9  
Month to date cooling degree days 50 36  
Year to date cooling degree days 573 468  
Since 1 June cooling degree days 514 438  
Growing Degree Days 28 (Base 50)    
Moisture  
Dew Point 70 °F    
Average Humidity 75    
Maximum Humidity 87    
Minimum Humidity 62    
Precipitation  
Precipitation 0.00 in 0.13 in 2.28 in (1915)
Month to date precipitation 0.80 0.49  
Year to date precipitation 20.79 25.76  
Sea Level Pressure  
Sea Level Pressure 30.18 in    
Wind  
Wind Speed 7 mph (SE)    
Max Wind Speed 14 mph    
Max Gust Speed 17 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

Aug. 04, 2012 Rise Set
Actual Time 5:40 AM EDT 7:59 PM EDT
Civil Twilight 5:08 AM EDT 8:30 PM EDT
Nautical Twilight 4:29 AM EDT 9:09 PM EDT
Astronomical Twilight 3:46 AM EDT 9:52 PM EDT
Moon 9:01 PM EDT (8/4) 8:28 AM EDT (8/4)
Length of Visible Light 15h 21m
Length of Day
14h 19m
Waning Gibbous, 92% of the Moon is Illuminated
Aug 4
Waning Gibbous
Aug 9
Last Quarter
Aug 17
New
Aug 24
First Quarter
Aug 31
Full

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 79.0 °F - 71.1 °F 77% 30.10 in 9.0 mi SW 5.8 mph - N/A   Scattered Clouds
1:54 AM 77.0 °F - 71.1 °F 82% 30.10 in 8.0 mi SSW 6.9 mph - N/A   Scattered Clouds
2:54 AM 77.0 °F - 71.1 °F 82% 30.10 in 8.0 mi SW 9.2 mph - N/A   Scattered Clouds
3:54 AM 78.1 °F - 71.1 °F 79% 30.11 in 9.0 mi WSW 5.8 mph - N/A   Partly Cloudy
4:54 AM 75.0 °F - 70.0 °F 84% 30.13 in 8.0 mi Calm Calm - N/A   Partly Cloudy
5:54 AM 75.0 °F - 71.1 °F 87% 30.15 in 6.0 mi SW 5.8 mph - N/A   Partly Cloudy
6:54 AM 75.9 °F - 71.1 °F 85% 30.18 in 7.0 mi SW 4.6 mph - N/A   Partly Cloudy
7:54 AM 80.1 °F 83.6 °F 71.1 °F 74% 30.19 in 7.0 mi North 3.5 mph - N/A   Partly Cloudy
8:54 AM 82.0 °F 85.9 °F 70.0 °F 67% 30.20 in 9.0 mi Variable 3.5 mph - N/A   Clear
9:54 AM 81.0 °F 84.4 °F 70.0 °F 69% 30.21 in 10.0 mi East 5.8 mph - N/A   Clear
10:54 AM 81.0 °F 84.1 °F 69.1 °F 67% 30.20 in 10.0 mi ENE 8.1 mph - N/A   Clear
11:54 AM 81.0 °F 83.3 °F 66.9 °F 62% 30.20 in 10.0 mi ENE 9.2 mph - N/A   Scattered Clouds
12:54 PM 80.1 °F 82.7 °F 68.0 °F 67% 30.20 in 9.0 mi East 10.4 mph - N/A   Scattered Clouds
1:54 PM 78.1 °F - 68.0 °F 71% 30.20 in 10.0 mi East 11.5 mph - N/A   Scattered Clouds
2:54 PM 78.1 °F - 69.1 °F 74% 30.19 in 10.0 mi East 11.5 mph - N/A   Scattered Clouds
3:54 PM 78.1 °F - 69.1 °F 74% 30.18 in 10.0 mi ENE 10.4 mph - N/A   Scattered Clouds
4:54 PM 75.9 °F - 69.1 °F 79% 30.18 in 9.0 mi ENE 10.4 mph - N/A   Scattered Clouds
5:54 PM 75.0 °F - 70.0 °F 84% 30.19 in 7.0 mi NE 6.9 mph - N/A   Scattered Clouds
6:54 PM 75.9 °F - 70.0 °F 82% 30.20 in 7.0 mi Calm Calm - N/A   Mostly Cloudy
7:54 PM 81.0 °F 84.4 °F 70.0 °F 69% 30.21 in 9.0 mi NW 8.1 mph - N/A   Mostly Cloudy
8:54 PM 78.1 °F - 70.0 °F 76% 30.20 in 10.0 mi SSE 5.8 mph - N/A   Mostly Cloudy
9:54 PM 79.0 °F - 69.1 °F 72% 30.19 in 10.0 mi SSW 9.2 mph - N/A   Overcast
10:54 PM 75.9 °F - 70.0 °F 82% 30.20 in 10.0 mi South 10.4 mph - N/A   Scattered Clouds
11:54 PM 75.0 °F - 71.1 °F 87% 30.21 in 10.0 mi South 9.2 mph - N/A   Scattered Clouds