Seattle Boeing, WA

1:23 AM PST on November 20, 2017 (GMT -0800)
Boeing Field-King County International

Weather History for KBFI - September, 2017

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Wednesday, September 13, 2017

  Actual Average Record
Temperature  
Mean Temperature 62 °F -  
Max Temperature 70 °F 71 °F 86 °F (1961)
Min Temperature 54 °F 51 °F 39 °F (1952)
Degree Days  
Heating Degree Days 4    
Growing Degree Days 12 (Base 50)    
Moisture  
Dew Point 50 °F    
Average Humidity 68    
Maximum Humidity 87    
Minimum Humidity 45    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 29.96 in    
Wind  
Wind Speed 4 mph (WSW)    
Max Wind Speed 7 mph    
Max Gust Speed -    
Visibility 10 miles    
Events      
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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Daily Weather History Graph

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Date:

Astronomy

Sep. 13, 2017 Rise Set
Actual Time 6:44 AM PDT 7:24 PM PDT
Civil Twilight 6:13 AM PDT 7:55 PM PDT
Nautical Twilight 5:36 AM PDT 8:32 PM PDT
Astronomical Twilight 4:57 AM PDT 9:10 PM PDT
Moon No Moon Rise 3:04 PM PDT (9/13)
Length of Visible Light 13h 42m
Length of Day
12h 40m
Last Quarter, 44% of the Moon is Illuminated
Sep 13
Last Quarter
Sep 19
New
Sep 27
First Quarter
Oct 5
Full
Oct 12
Last Quarter

Hourly Weather History & Observations

Time (PDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 62.1 °F 50.0 °F 65% 29.97 in 10.0 mi Variable 4.6 mph - N/A   Scattered Clouds
1:53 AM 61.0 °F 48.9 °F 64% 29.98 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
2:53 AM 57.9 °F 53.1 °F 84% 29.98 in 10.0 mi SW 5.8 mph - N/A   Overcast
3:53 AM 57.0 °F 51.1 °F 81% 29.98 in 10.0 mi SW 6.9 mph - N/A   Mostly Cloudy
4:53 AM 55.0 °F 51.1 °F 86% 29.99 in 10.0 mi South 4.6 mph - N/A   Partly Cloudy
5:53 AM 54.0 °F 50.0 °F 86% 29.99 in 10.0 mi South 5.8 mph - N/A   Mostly Cloudy
6:53 AM 55.0 °F 51.1 °F 86% 30.00 in 10.0 mi South 5.8 mph - N/A   Mostly Cloudy
7:53 AM 55.9 °F 52.0 °F 87% 30.01 in 10.0 mi SSW 4.6 mph - N/A   Mostly Cloudy
8:53 AM 57.0 °F 52.0 °F 83% 30.01 in 10.0 mi SSW 4.6 mph - N/A   Overcast
9:53 AM 60.1 °F 52.0 °F 75% 30.01 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
10:53 AM 60.1 °F 51.1 °F 72% 30.00 in 10.0 mi Calm Calm - N/A   Overcast
11:23 AM 61.0 °F 51.1 °F 70% 30.00 in 10.0 mi NW 4.6 mph - N/A   Overcast
11:53 AM 63.0 °F 51.1 °F 65% 29.99 in 10.0 mi Variable 3.5 mph - N/A   Mostly Cloudy
12:53 PM 64.0 °F 51.1 °F 63% 29.98 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
1:53 PM 64.9 °F 50.0 °F 58% 29.97 in 10.0 mi Variable 3.5 mph - N/A   Scattered Clouds
2:53 PM 66.9 °F 50.0 °F 54% 29.95 in 10.0 mi NW 5.8 mph - N/A   Partly Cloudy
3:53 PM 68.0 °F 50.0 °F 52% 29.94 in 10.0 mi WNW 5.8 mph - N/A   Partly Cloudy
4:53 PM 69.1 °F 46.9 °F 45% 29.93 in 10.0 mi WNW 5.8 mph - N/A   Scattered Clouds
5:53 PM 68.0 °F 48.9 °F 50% 29.91 in 10.0 mi WNW 5.8 mph - N/A   Scattered Clouds
6:53 PM 66.0 °F 48.9 °F 54% 29.91 in 10.0 mi NNW 4.6 mph - N/A   Scattered Clouds
7:53 PM 64.9 °F 48.9 °F 56% 29.91 in 10.0 mi NW 3.5 mph - N/A   Scattered Clouds
8:53 PM 64.0 °F 48.9 °F 58% 29.91 in 10.0 mi Calm Calm - N/A   Partly Cloudy
9:53 PM 63.0 °F 50.0 °F 63% 29.91 in 10.0 mi Calm Calm - N/A   Clear
10:53 PM 63.0 °F 51.1 °F 65% 29.91 in 10.0 mi Calm Calm - N/A   Overcast
11:53 PM 61.0 °F 52.0 °F 72% 29.90 in 10.0 mi Calm Calm - N/A   Partly Cloudy