Boston, MA

7:39 AM EDT on March 27, 2017 (GMT -0400)
Logan International

Weather History for KBOS - September, 2015

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Week of September 13, 2015 through September 19, 2015

  Max Avg Min Sum
Temperature  
Max Temperature 89 °F 79 °F 66 °F
Mean Temperature 77 °F 71 °F 65 °F
Min Temperature 65 °F 63 °F 57 °F
Degree Days  
Heating Degree Days (base 65) 0 0 0 0
Cooling Degree Days (base 65) 12 6 0 44
Growing Degree Days (base 50) 26 20 14 143
Dew Point  
Dew Point 67 °F 59 °F 51 °F
Precipitation  
Precipitation 0.38 in 0.05 in 0.00 in 0.38 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind  
Wind 24 mph 10 mph 0 mph
Gust Wind 36 mph 22 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.32 in 30.02 in 29.71 in

Weekly Weather History Graph

Weekly Weather History Graph

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Astronomy

Sep. 14, 2015 Rise Set
Actual Time 6:22 AM EDT 6:55 PM EDT
Civil Twilight 5:54 AM EDT 7:24 PM EDT
Nautical Twilight 5:20 AM EDT 7:57 PM EDT
Astronomical Twilight 4:46 AM EDT 8:31 PM EDT
Moon 7:33 AM EDT (9/14) 7:36 PM EDT (9/14)
Length of Visible Light 13h 29m
Length of Day
12h 33m
New Moon, 2% of the Moon is Illuminated
Sep 14
New Moon
Sep 21
First Quarter
Sep 27
Full
Oct 4
Last Quarter
Oct 12
New

Daily Weather History & Observations

2015 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Sep high avg low high avg low high avg low high avg low high avg low high avg high sum  
13 66 65 63 65 62 59 100 94 87 29.79 29.75 29.71 10 6 0 20 10 23 0.38 Rain
14 72 65 57 63 54 51 90 70 49 30.07 29.88 29.72 10 10 10 24 15 36 0.00  
15 84 73 62 58 54 51 67 52 36 30.25 30.20 30.09 10 10 10 16 11 22 0.00  
16 81 73 65 64 59 57 78 62 45 30.32 30.26 30.20 10 10 10 13 7 21 0.00  
17 89 77 64 65 59 53 84 58 31 30.19 30.10 30.02 10 10 10 14 7 20 0.00  
18 85 75 65 62 60 57 87 64 40 30.04 30.00 29.95 10 10 10 17 8 22 0.00  
19 79 71 62 67 62 57 100 74 48 30.00 29.95 29.87 10 8 1 17 10 21 0.00