Seattle Boeing, WA

4:44 AM PDT on September 20, 2017 (GMT -0700)
Boeing Field-King County International

Weather History for KBFI - September, 2013

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Week of September 15, 2013 through September 21, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 79 °F 71 °F 64 °F
Mean Temperature 66 °F 64 °F 62 °F
Min Temperature 62 °F 58 °F 53 °F
Degree Days  
Heating Degree Days (base 65) 3 1 0 9
Cooling Degree Days (base 65) 2 0 0 2
Growing Degree Days (base 50) 16 14 12 100
Dew Point  
Dew Point 61 °F 52 °F 44 °F
Precipitation  
Precipitation 0.21 in 0.05 in 0.00 in 0.37 in
Snowdepth - - - -
Wind  
Wind 13 mph 5 mph 0 mph
Gust Wind 21 mph 21 mph 21 mph
Sea Level Pressure  
Sea Level Pressure 30.08 in 29.84 in 29.60 in

Weekly Weather History Graph

Weekly Weather History Graph

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Astronomy

Sep. 18, 2013 Rise Set
Actual Time 6:51 AM PDT 7:14 PM PDT
Civil Twilight 6:20 AM PDT 7:45 PM PDT
Nautical Twilight 5:43 AM PDT 8:21 PM PDT
Astronomical Twilight 5:05 AM PDT 8:59 PM PDT
Moon 6:38 PM PDT (9/18) 5:58 AM PDT (9/18)
Length of Visible Light 13h 24m
Length of Day
12h 23m
Waxing Gibbous, 99% of the Moon is Illuminated
Sep 18
Waxing Gibbous
Sep 19
Full
Sep 26
Last Quarter
Oct 4
New
Oct 11
First Quarter

Daily Weather History & Observations

2013 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  
15 68 64 59 61 58 55 90 84 73 29.82 29.77 29.72 10 7 1 9 4 - 0.21 Rain , Thunderstorm
16 72 66 62 57 55 51 81 72 59 29.94 29.90 29.82 10 10 10 13 7 21 0.00  
17 64 62 60 52 50 46 75 65 50 29.94 29.90 29.87 10 10 10 7 3 - 0.00  
18 71 64 57 53 50 47 81 65 42 30.08 30.04 29.95 10 10 10 10 5 - 0.00  
19 79 66 53 51 48 44 80 59 30 30.04 29.90 29.77 10 10 10 6 1 - 0.00  
20 75 64 55 57 51 49 84 66 42 29.76 29.67 29.60 10 10 4 10 7 - 0.15 Rain
21 71 64 57 56 53 50 88 72 51 29.73 29.69 29.66 10 10 10 8 5 - 0.01