Seattle Boeing, WA

3:39 AM PDT on September 20, 2019 (GMT -0700)
Boeing Field-King County International

Weather History for KBFI - September, 2019

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Thursday, September 12, 2019

  Actual Average Record
Temperature  
Mean Temperature 68 °F -  
Max Temperature 80 °F 69 °F 85 °F (1961)
Min Temperature 59 °F 51 °F 44 °F (1949)
Cooling Degree Days 4    
Growing Degree Days 18 (Base 50)    
Moisture  
Dew Point 53 °F    
Average Humidity 61    
Maximum Humidity 87    
Minimum Humidity 35    
Precipitation  
Precipitation 0.12 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.10 in    
Wind  
Wind Speed 6 mph (SSE)    
Max Wind Speed 10 mph    
Max Gust Speed 18 mph    
Visibility 10 miles    
Events Rain    
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. 12, 2019 Rise Set
Actual Time 6:42 AM PDT 7:27 PM PDT
Civil Twilight 6:11 AM PDT 7:58 PM PDT
Nautical Twilight 5:34 AM PDT 8:35 PM PDT
Astronomical Twilight 4:55 AM PDT 9:14 PM PDT
Moon 7:23 PM PDT (9/12) 4:56 AM PDT (9/12)
Length of Visible Light 13h 47m
Length of Day
12h 45m
Waxing Gibbous, 98% of the Moon is Illuminated
Sep 12
Waxing Gibbous
Sep 13
Full
Sep 21
Last Quarter
Sep 28
New
Oct 5
First 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 64.0 °F 55.0 °F 73% 30.18 in 10.0 mi SE 4.6 mph - N/A   Clear
1:53 AM 62.1 °F 55.0 °F 78% 30.17 in 10.0 mi SE 5.8 mph - N/A   Clear
2:53 AM 61.0 °F 54.0 °F 78% 30.17 in 10.0 mi SE 5.8 mph - N/A   Clear
3:53 AM 59.0 °F 53.1 °F 81% 30.15 in 10.0 mi SSE 6.9 mph - N/A   Clear
4:53 AM 59.0 °F 54.0 °F 83% 30.14 in 10.0 mi SE 4.6 mph - N/A   Clear
5:53 AM 60.1 °F 53.1 °F 78% 30.13 in 10.0 mi SE 6.9 mph - N/A   Clear
7:53 AM 60.1 °F 53.1 °F 78% 30.14 in 10.0 mi SSE 9.2 mph - N/A   Mostly Cloudy
8:53 AM 64.0 °F 53.1 °F 67% 30.15 in 10.0 mi SE 6.9 mph - N/A   Mostly Cloudy
9:53 AM 66.9 °F 53.1 °F 61% 30.14 in 10.0 mi SE 6.9 mph - N/A   Scattered Clouds
10:53 AM 71.1 °F 53.1 °F 53% 30.12 in 10.0 mi ESE 5.8 mph - N/A   Mostly Cloudy
11:53 AM 73.9 °F 51.1 °F 45% 30.12 in 10.0 mi Variable 6.9 mph - N/A   Mostly Cloudy
12:53 PM 73.9 °F 48.9 °F 41% 30.10 in 10.0 mi SSW 8.1 mph - N/A   Mostly Cloudy
1:53 PM 77.0 °F 48.9 °F 37% 30.08 in 10.0 mi SW 9.2 mph 18.4 mph N/A   Clear
2:53 PM 78.1 °F 48.0 °F 35% 30.06 in 10.0 mi SW 6.9 mph - N/A   Clear
3:53 PM 78.1 °F 48.0 °F 35% 30.04 in 10.0 mi Variable 6.9 mph - N/A   Scattered Clouds
4:53 PM 77.0 °F 51.1 °F 40% 30.03 in 10.0 mi Variable 5.8 mph - N/A   Mostly Cloudy
5:53 PM 77.0 °F 53.1 °F 43% 30.01 in 10.0 mi WSW 9.2 mph - N/A   Mostly Cloudy
6:53 PM 73.9 °F 50.0 °F 43% 30.01 in 10.0 mi SSW 6.9 mph - N/A   Mostly Cloudy
7:53 PM 73.0 °F 50.0 °F 44% 30.01 in 10.0 mi Variable 5.8 mph - N/A   Mostly Cloudy
8:53 PM 64.9 °F 57.0 °F 75% 30.04 in 7.0 mi SSW 8.1 mph - 0.09 in Rain Light Rain
9:53 PM 64.9 °F 59.0 °F 81% 30.05 in 9.0 mi South 8.1 mph - 0.03 in Rain Light Rain
11:53 PM 64.0 °F 60.1 °F 87% 30.06 in 10.0 mi South 10.4 mph - 0.00 in   Mostly Cloudy