Seattle Boeing, WA

2:14 PM PST on February 21, 2018 (GMT -0800)
Boeing Field-King County International

Weather History for KBFI - December, 2012

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Tuesday, December 18, 2012

  Actual Average Record
Temperature  
Mean Temperature 36 °F -  
Max Temperature 39 °F 44 °F 57 °F (2003)
Min Temperature 34 °F 34 °F 18 °F (1964)
Degree Days  
Heating Degree Days 28    
Moisture  
Dew Point 32 °F    
Average Humidity 81    
Maximum Humidity 92    
Minimum Humidity 67    
Precipitation  
Precipitation 0.05 in - - ()
Sea Level Pressure  
Sea Level Pressure 29.95 in    
Wind  
Wind Speed 10 mph (SSE)    
Max Wind Speed 13 mph    
Max Gust Speed 23 mph    
Visibility 9 miles    
Events Rain , Snow    
Averages and records for this station are not official NWS values.
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Dec. 18, 2012 Rise Set
Actual Time 7:52 AM PST 4:19 PM PST
Civil Twilight 7:16 AM PST 4:55 PM PST
Nautical Twilight 6:37 AM PST 5:34 PM PST
Astronomical Twilight 6:00 AM PST 6:12 PM PST
Moon 11:12 AM PST (12/18) 11:16 PM PST (12/18)
Length of Visible Light 9h 38m
Length of Day
8h 26m
Waxing Crescent, 36% of the Moon is Illuminated
Dec 18
Waxing Crescent
Dec 19
First Quarter
Dec 28
Full
Jan 4
Last Quarter
Jan 11
New

Hourly Weather History & Observations

Time (PST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 37.0 °F 29.3 °F 30.9 °F 79% 29.90 in 10.0 mi SSE 11.5 mph - N/A   Mostly Cloudy
1:53 AM 36.0 °F 28.5 °F 32.0 °F 86% 29.90 in 10.0 mi SE 10.4 mph - 0.00 in Rain Light Rain
2:47 AM 35.6 °F 27.1 °F 32.0 °F 87% 29.90 in 5.0 mi South 12.7 mph 16.1 mph 0.02 in Rain Light Freezing Rain
2:53 AM 35.1 °F 27.9 °F 32.0 °F 89% 29.90 in 5.0 mi SSE 9.2 mph - 0.02 in Rain Light Freezing Rain
3:05 AM 35.6 °F 29.2 °F 32.0 °F 87% 29.90 in 6.0 mi SSE 8.1 mph - 0.01 in Snow Light Snow
3:53 AM 34.0 °F 25.5 °F 32.0 °F 92% 29.88 in 6.0 mi SE 11.5 mph - 0.03 in Snow Light Snow
4:53 AM 34.0 °F 26.0 °F 32.0 °F 92% 29.89 in 10.0 mi SE 10.4 mph - 0.00 in   Overcast
5:53 AM 37.0 °F 29.3 °F 33.1 °F 86% 29.90 in 10.0 mi South 11.5 mph 19.6 mph N/A   Overcast
6:53 AM 36.0 °F 27.5 °F 33.1 °F 89% 29.90 in 10.0 mi SE 12.7 mph - N/A   Overcast
7:53 AM 37.0 °F 30.4 °F 32.0 °F 82% 29.91 in 10.0 mi SSE 9.2 mph - N/A   Overcast
8:53 AM 36.0 °F 29.0 °F 33.1 °F 89% 29.93 in 10.0 mi SSE 9.2 mph - N/A   Overcast
9:53 AM 37.9 °F 32.1 °F 33.1 °F 83% 29.94 in 10.0 mi SSE 8.1 mph - N/A   Overcast
10:53 AM 37.9 °F 32.1 °F 33.1 °F 83% 29.96 in 10.0 mi South 8.1 mph - N/A   Mostly Cloudy
11:53 AM 39.9 °F 32.5 °F 32.0 °F 73% 29.96 in 10.0 mi South 12.7 mph 20.7 mph N/A   Overcast
12:53 PM 39.9 °F 32.9 °F 32.0 °F 73% 29.96 in 10.0 mi SSW 11.5 mph 17.3 mph N/A   Mostly Cloudy
1:15 PM 39.2 °F 33.6 °F 33.8 °F 81% 29.96 in 10.0 mi South 8.1 mph 16.1 mph N/A   Overcast
1:53 PM 39.0 °F 31.8 °F 32.0 °F 76% 29.96 in 10.0 mi South 11.5 mph - N/A   Mostly Cloudy
2:53 PM 39.9 °F 32.9 °F 32.0 °F 73% 29.96 in 10.0 mi South 11.5 mph 23.0 mph N/A   Mostly Cloudy
3:53 PM 39.0 °F 32.3 °F 30.9 °F 73% 29.97 in 10.0 mi South 10.4 mph - N/A   Overcast
4:53 PM 39.0 °F 33.4 °F 28.9 °F 67% 29.98 in 10.0 mi South 8.1 mph 17.3 mph N/A   Mostly Cloudy
5:40 PM 37.4 °F 31.4 °F 30.2 °F 75% 29.98 in 10.0 mi South 8.1 mph 18.4 mph 0.00 in Rain Light Rain
5:53 PM 37.9 °F 30.9 °F 30.9 °F 76% 29.99 in 10.0 mi South 10.4 mph 18.4 mph 0.00 in Rain Light Rain
6:25 PM 37.4 °F 32.1 °F 32.0 °F 81% 29.99 in 10.0 mi SSW 6.9 mph 16.1 mph 0.00 in Rain Light Rain
6:53 PM 37.9 °F 32.1 °F 32.0 °F 79% 29.99 in 10.0 mi SSE 8.1 mph - 0.00 in   Overcast
7:53 PM 37.9 °F 32.1 °F 32.0 °F 79% 29.99 in 10.0 mi South 8.1 mph - N/A   Overcast
8:53 PM 37.9 °F 32.1 °F 30.9 °F 76% 29.99 in 10.0 mi SSE 8.1 mph - N/A   Overcast
9:53 PM 37.0 °F 31.0 °F 30.0 °F 76% 29.99 in 10.0 mi SSE 8.1 mph - N/A   Mostly Cloudy
10:53 PM 35.1 °F 28.6 °F 28.9 °F 78% 29.98 in 10.0 mi SE 8.1 mph - N/A   Mostly Cloudy
11:53 PM 36.0 °F 29.6 °F 28.9 °F 76% 29.97 in 10.0 mi SE 8.1 mph - N/A   Overcast