Seattle Boeing, WA

11:53 PM PDT on April 08, 2020 (GMT -0700)
Boeing Field-King County International

Weather History for KBFI - September, 2019

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Sunday, September 1, 2019

  Actual Average Record
Temperature  
Mean Temperature 72 °F -  
Max Temperature 80 °F 73 °F 91 °F (1987)
Min Temperature 64 °F 54 °F 46 °F (1973)
Cooling Degree Days 7    
Growing Degree Days 22 (Base 50)    
Moisture  
Dew Point 56 °F    
Average Humidity 61    
Maximum Humidity 75    
Minimum Humidity 40    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 29.99 in    
Wind  
Wind Speed 5 mph (SSW)    
Max Wind Speed 13 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

Daily Weather History Graph

Daily Weather History Graph

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Astronomy

Sep. 01, 2019 Rise Set
Actual Time 6:27 AM PDT 7:49 PM PDT
Civil Twilight 5:55 AM PDT 8:21 PM PDT
Nautical Twilight 5:17 AM PDT 8:59 PM PDT
Astronomical Twilight 4:35 AM PDT 9:41 PM PDT
Moon 9:13 AM PDT (9/1) 9:28 PM PDT (9/1)
Length of Visible Light 14h 25m
Length of Day
13h 22m
Waxing Crescent, 8% of the Moon is Illuminated
Sep 1
Waxing Crescent
Sep 5
First Quarter
Sep 13
Full
Sep 21
Last Quarter
Sep 28
New

Hourly Weather History & Observations

Time (PDT) Temp. Heat Index Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 68.0 °F - 55.9 °F 65% 29.96 in 10.0 mi SSE 5.8 mph - N/A   Mostly Cloudy
1:53 AM 68.0 °F - 57.0 °F 68% 29.97 in 10.0 mi South 3.5 mph - N/A   Overcast
2:53 AM 66.0 °F - 57.0 °F 73% 29.97 in 10.0 mi SSW 3.5 mph - N/A   Overcast
3:53 AM 66.0 °F - 57.0 °F 73% 29.98 in 10.0 mi SSW 3.5 mph - N/A   Overcast
4:53 AM 66.0 °F - 57.0 °F 73% 29.98 in 10.0 mi South 4.6 mph - N/A   Mostly Cloudy
5:53 AM 64.9 °F - 57.0 °F 75% 29.98 in 10.0 mi South 5.8 mph - N/A   Overcast
6:53 AM 64.9 °F - 57.0 °F 75% 29.99 in 10.0 mi South 4.6 mph - N/A   Mostly Cloudy
7:53 AM 66.0 °F - 57.0 °F 73% 30.00 in 10.0 mi South 4.6 mph - N/A   Mostly Cloudy
8:53 AM 68.0 °F - 57.0 °F 68% 30.01 in 10.0 mi Variable 4.6 mph - N/A   Mostly Cloudy
9:53 AM 71.1 °F - 57.9 °F 63% 30.01 in 10.0 mi SW 8.1 mph - N/A   Mostly Cloudy
10:53 AM 70.0 °F - 57.0 °F 63% 30.01 in 10.0 mi SSW 6.9 mph - N/A   Mostly Cloudy
11:53 AM 73.9 °F - 57.0 °F 55% 30.01 in 10.0 mi SW 8.1 mph - N/A   Mostly Cloudy
12:53 PM 75.0 °F - 55.9 °F 51% 30.00 in 10.0 mi SW 10.4 mph - N/A   Scattered Clouds
1:53 PM 77.0 °F - 54.0 °F 45% 30.00 in 10.0 mi Variable 5.8 mph - N/A   Partly Cloudy
2:53 PM 77.0 °F - 55.0 °F 47% 29.99 in 10.0 mi South 4.6 mph - N/A   Scattered Clouds
3:53 PM 79.0 °F - 54.0 °F 42% 29.98 in 10.0 mi SSW 5.8 mph - N/A   Clear
4:53 PM 78.1 °F - 54.0 °F 43% 29.97 in 10.0 mi Variable 4.6 mph - N/A   Scattered Clouds
5:53 PM 80.1 °F 80.0 °F 54.0 °F 40% 29.97 in 10.0 mi Variable 3.5 mph - N/A   Scattered Clouds
6:53 PM 75.0 °F - 55.0 °F 50% 29.98 in 10.0 mi NW 12.7 mph - N/A   Scattered Clouds
7:53 PM 71.1 °F - 55.9 °F 59% 29.99 in 10.0 mi NW 4.6 mph - N/A   Partly Cloudy
8:53 PM 70.0 °F - 55.0 °F 59% 30.01 in 10.0 mi Calm Calm - N/A   Clear
9:53 PM 68.0 °F - 55.0 °F 63% 30.01 in 10.0 mi NW 3.5 mph - N/A   Clear
10:53 PM 68.0 °F - 55.9 °F 65% 30.03 in 10.0 mi Calm Calm - N/A   Partly Cloudy
11:53 PM 66.9 °F - 55.9 °F 68% 30.03 in 10.0 mi Calm Calm - N/A   Clear