Boston, MA

1:12 AM EDT on June 25, 2018 (GMT -0400)
Logan International

Weather History for KBOS - August, 2017

Change the Weather History Date:

Saturday, August 12, 2017

  Actual Average Record
Temperature  
Mean Temperature 70 °F 73 °F  
Max Temperature 76 °F 80 °F 101 °F (1944)
Min Temperature 63 °F 65 °F 53 °F (1930)
Degree Days  
Heating Degree Days 0 0  
Month to date heating degree days 0 0  
Since 1 June heating degree days 60 61  
Since 1 July heating degree days 10 6  
Cooling Degree Days 5 8  
Month to date cooling degree days 93 100  
Year to date cooling degree days 594 532  
Since 1 June cooling degree days 534 502  
Growing Degree Days 19 (Base 50)    
Moisture  
Dew Point 62 °F    
Average Humidity 76    
Maximum Humidity 90    
Minimum Humidity 61    
Precipitation  
Precipitation 0.10 in 0.10 in 2.29 in (1892)
Month to date precipitation 1.22 1.42  
Year to date precipitation 30.93 26.69  
Sea Level Pressure  
Sea Level Pressure 29.94 in    
Wind  
Wind Speed 9 mph (South)    
Max Wind Speed 16 mph    
Max Gust Speed 22 mph    
Visibility 10 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

Daily Weather History Graph

Daily Weather History Graph

Search for Another Location

Airport or City:

Astronomy

Aug. 12, 2017 Rise Set
Actual Time 5:48 AM EDT 7:48 PM EDT
Civil Twilight 5:17 AM EDT 8:19 PM EDT
Nautical Twilight 4:40 AM EDT 8:56 PM EDT
Astronomical Twilight 3:59 AM EDT 9:37 PM EDT
Moon 10:38 PM EDT (8/12) 10:45 AM EDT (8/12)
Length of Visible Light 15h 01m
Length of Day
14h 00m
Waning Gibbous, 75% of the Moon is Illuminated
Aug 12
Waning Gibbous
Aug 14
Last Quarter
Aug 21
New
Aug 29
First Quarter
Sep 6
Full

Hourly Weather History & Observations

Time (EDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:54 AM 70.0 °F 55.9 °F 61% 30.03 in 10.0 mi SSW 6.9 mph - N/A   Overcast
1:54 AM 68.0 °F 59.0 °F 73% 30.03 in 10.0 mi SW 10.4 mph - 0.00 in   Mostly Cloudy
2:54 AM 66.0 °F 60.1 °F 81% 30.03 in 10.0 mi SW 6.9 mph - 0.03 in   Overcast
3:54 AM 64.9 °F 59.0 °F 81% 30.03 in 7.0 mi WSW 8.1 mph - 0.04 in Rain Light Rain
4:54 AM 64.0 °F 59.0 °F 84% 30.03 in 10.0 mi SSW 10.4 mph - 0.00 in Rain Light Rain
6:54 AM 64.0 °F 55.0 °F 73% 30.00 in 10.0 mi South 3.5 mph - 0.00 in   Overcast
7:54 AM 64.9 °F 57.0 °F 75% 30.00 in 10.0 mi SSW 3.5 mph - N/A   Mostly Cloudy
8:54 AM 64.0 °F 59.0 °F 84% 29.98 in 10.0 mi SE 6.9 mph - N/A   Mostly Cloudy
9:54 AM 66.0 °F 55.9 °F 70% 29.98 in 10.0 mi SSE 6.9 mph - N/A   Scattered Clouds
10:54 AM 66.9 °F 60.1 °F 79% 29.97 in 10.0 mi ESE 4.6 mph - N/A   Scattered Clouds
11:54 AM 69.1 °F 61.0 °F 75% 29.95 in 10.0 mi East 6.9 mph - N/A   Mostly Cloudy
12:54 PM 69.1 °F 61.0 °F 75% 29.95 in 10.0 mi SE 9.2 mph - N/A   Mostly Cloudy
1:54 PM 68.0 °F 62.1 °F 81% 29.93 in 10.0 mi ESE 12.7 mph - N/A   Overcast
2:54 PM 70.0 °F 63.0 °F 78% 29.92 in 10.0 mi SE 8.1 mph - N/A   Overcast
3:27 PM 72.0 °F 63.0 °F 73% 29.91 in 10.0 mi SSE 9.2 mph - N/A   Overcast
3:54 PM 72.0 °F 64.0 °F 76% 29.90 in 10.0 mi SSE 10.4 mph - N/A   Overcast
4:54 PM 73.9 °F 64.9 °F 73% 29.88 in 10.0 mi SSE 9.2 mph - N/A   Mostly Cloudy
5:54 PM 75.0 °F 64.9 °F 71% 29.87 in 10.0 mi South 11.5 mph - N/A   Mostly Cloudy
6:54 PM 73.0 °F 64.9 °F 76% 29.88 in 10.0 mi South 12.7 mph - N/A   Mostly Cloudy
7:54 PM 72.0 °F 66.0 °F 81% 29.87 in 10.0 mi South 10.4 mph - N/A   Mostly Cloudy
8:54 PM 71.1 °F 66.9 °F 87% 29.87 in 10.0 mi South 12.7 mph - N/A   Mostly Cloudy
9:54 PM 70.0 °F 66.9 °F 90% 29.86 in 10.0 mi SSW 10.4 mph - N/A   Overcast
10:54 PM 71.1 °F 66.9 °F 87% 29.86 in 10.0 mi SSW 9.2 mph - N/A   Overcast
11:54 PM 71.1 °F 66.9 °F 87% 29.87 in 10.0 mi SSW 10.4 mph - N/A   Overcast