Seattle Boeing, WA

5:21 PM PDT on July 25, 2017 (GMT -0700)
Boeing Field-King County International

Weather History for KBFI - December, 2012

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Week of December 16, 2012 through December 22, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 55 °F 47 °F 39 °F
Mean Temperature 47 °F 41 °F 36 °F
Min Temperature 39 °F 35 °F 30 °F
Degree Days  
Heating Degree Days (base 65) 28 24 18 169
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 0 0 0 0
Dew Point  
Dew Point 48 °F 35 °F 28 °F
Precipitation  
Precipitation 0.99 in 0.41 in 0.05 in 2.90 in
Snowdepth - - - -
Wind  
Wind 23 mph 8 mph 0 mph
Gust Wind 39 mph 22 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 29.99 in 29.67 in 28.94 in

Weekly Weather History Graph

Weekly Weather History Graph

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Date:

Astronomy

Dec. 19, 2012 Rise Set
Actual Time 7:53 AM PST 4:19 PM PST
Civil Twilight 7:17 AM PST 4:55 PM PST
Nautical Twilight 6:38 AM PST 5:35 PM PST
Astronomical Twilight 6:00 AM PST 6:12 PM PST
Moon 11:36 AM PST (12/19) No Moon Set
Length of Visible Light 9h 38m
Length of Day
8h 26m
Waxing Crescent, 46% of the Moon is Illuminated
Dec 19
Waxing Crescent
Dec 19
First Quarter
Dec 28
Full
Jan 4
Last Quarter
Jan 11
New

Daily Weather History & Observations

2012 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Dec high avg low high avg low high avg low high avg low high avg low high avg high sum  
16 55 47 39 48 37 34 89 84 76 29.75 29.49 28.97 10 9 4 20 11 28 0.92 Rain
17 48 42 37 43 35 30 86 73 60 29.89 29.50 28.94 10 10 10 23 15 39 0.11 Rain
18 39 36 34 34 32 29 92 81 67 29.99 29.95 29.88 10 9 5 13 10 23 0.05 Rain , Snow
19 46 40 33 40 34 28 94 81 63 29.95 29.72 29.57 10 8 4 22 8 30 0.99 Rain , Snow
20 44 38 32 43 36 30 99 83 76 29.83 29.67 29.52 10 8 5 16 6 25 0.64 Rain
21 46 38 30 37 32 28 100 89 68 29.83 29.76 29.67 10 6 0 6 1 - 0.07 Fog , Rain
22 48 44 39 41 37 34 89 79 59 29.74 29.60 29.51 10 10 8 15 3 29 0.12 Rain