Boston, MA

4:45 PM EDT on June 19, 2018 (GMT -0400)
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Weather History for KBOS - September, 2017

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Week of September 24, 2017 through September 30, 2017

  Max Avg Min Sum
Temperature  
Max Temperature 86 °F 75 °F 59 °F
Mean Temperature 76 °F 67 °F 55 °F
Min Temperature 65 °F 59 °F 50 °F
Degree Days  
Heating Degree Days (base 65) 10 2 0 15
Cooling Degree Days (base 65) 11 5 0 32
Growing Degree Days (base 50) 25 17 4 120
Dew Point  
Dew Point 73 °F 59 °F 38 °F
Precipitation  
Precipitation 1.55 in 0.22 in 0.00 in 1.55 in
Snowdepth - - - -
Wind  
Wind 26 mph 8 mph 0 mph
Gust Wind 36 mph 23 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.34 in 29.99 in 29.69 in

Weekly Weather History Graph

Weekly Weather History Graph

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Astronomy

Sep. 29, 2017 Rise Set
Actual Time 6:39 AM EDT 6:28 PM EDT
Civil Twilight 6:11 AM EDT 6:56 PM EDT
Nautical Twilight 5:38 AM EDT 7:29 PM EDT
Astronomical Twilight 5:05 AM EDT 8:02 PM EDT
Moon 3:08 PM EDT (9/29) 12:12 AM EDT (9/29)
Length of Visible Light 12h 45m
Length of Day
11h 49m
Waxing Gibbous, 65% of the Moon is Illuminated
Sep 29
Waxing Gibbous
Oct 5
Full
Oct 12
Last Quarter
Oct 19
New
Oct 27
First Quarter

Daily Weather History & Observations

2017 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  
24 79 70 61 65 63 61 100 80 60 30.07 30.04 30.01 10 10 10 13 3 16 0.00  
25 78 71 64 67 65 61 100 78 56 30.09 30.06 30.03 10 10 10 13 5 15 0.00  
26 80 72 63 69 67 64 100 87 74 30.06 30.02 29.97 10 5 0 12 5 13 0.00 Fog
27 86 76 65 73 69 65 100 83 65 29.97 29.87 29.76 10 10 10 16 9 21 0.00  
28 78 68 57 73 58 40 100 67 33 29.91 29.74 29.69 10 10 10 25 13 31 0.00  
29 68 60 52 51 43 38 86 62 37 30.05 29.99 29.91 10 10 10 15 9 20 0.00  
30 59 55 50 53 50 45 93 83 72 30.34 30.18 30.04 10 8 2 26 11 36 1.55 Rain , Thunderstorm