Seattle Boeing, WA

3:59 AM PDT on April 07, 2020 (GMT -0700)
Boeing Field-King County International

Weather History for KBFI - September, 2019

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Wednesday, September 18, 2019

  Actual Average Record
Temperature  
Mean Temperature 60 °F -  
Max Temperature 68 °F 68 °F 85 °F (1991)
Min Temperature 55 °F 51 °F 41 °F (1948)
Degree Days  
Heating Degree Days 4    
Growing Degree Days 10 (Base 50)    
Moisture  
Dew Point 53 °F    
Average Humidity 78    
Maximum Humidity 93    
Minimum Humidity 54    
Precipitation  
Precipitation 0.08 in - - ()
Sea Level Pressure  
Sea Level Pressure 29.87 in    
Wind  
Wind Speed 3 mph (WNW)    
Max Wind Speed 9 mph    
Max Gust Speed -    
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. 18, 2019 Rise Set
Actual Time 6:50 AM PDT 7:15 PM PDT
Civil Twilight 6:19 AM PDT 7:46 PM PDT
Nautical Twilight 5:43 AM PDT 8:22 PM PDT
Astronomical Twilight 5:05 AM PDT 9:00 PM PDT
Moon 9:34 PM PDT (9/18) 11:15 AM PDT (9/18)
Length of Visible Light 13h 26m
Length of Day
12h 24m
Waning Gibbous, 82% of the Moon is Illuminated
Sep 18
Waning Gibbous
Sep 21
Last Quarter
Sep 28
New
Oct 5
First Quarter
Oct 13
Full

Hourly Weather History & Observations

Time (PDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 57.0 °F 54.0 °F 89% 29.77 in 7.0 mi SSE 4.6 mph - 0.01 in Rain Light Rain
1:53 AM 55.9 °F 54.0 °F 93% 29.77 in 6.0 mi Calm Calm - 0.07 in Rain Light Rain
2:53 AM 55.9 °F 54.0 °F 93% 29.77 in 10.0 mi South 4.6 mph - 0.00 in   Overcast
3:53 AM 55.9 °F 53.1 °F 90% 29.78 in 10.0 mi Calm Calm - 0.00 in Rain Light Rain
4:26 AM 57.0 °F 54.0 °F 89% 29.78 in 10.0 mi SSE 5.8 mph - 0.00 in Rain Light Rain
4:36 AM 57.0 °F 54.0 °F 89% 29.79 in 10.0 mi Calm Calm - 0.00 in Rain Light Rain
4:53 AM 57.0 °F 54.0 °F 89% 29.79 in 10.0 mi ESE 3.5 mph - 0.00 in Rain Light Rain
5:53 AM 57.0 °F 54.0 °F 89% 29.80 in 10.0 mi Calm Calm - 0.00 in   Overcast
6:53 AM 57.0 °F 55.0 °F 93% 29.82 in 10.0 mi Calm Calm - N/A   Overcast
7:53 AM 57.9 °F 53.1 °F 84% 29.83 in 10.0 mi Calm Calm - N/A   Overcast
8:53 AM 60.1 °F 55.0 °F 83% 29.85 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
9:00 AM 60.1 °F 55.0 °F 83% 29.85 in 10.0 mi West 3.5 mph - N/A   Mostly Cloudy
9:53 AM 60.1 °F 54.0 °F 80% 29.86 in 10.0 mi NW 4.6 mph - N/A   Mostly Cloudy
10:53 AM 60.1 °F 53.1 °F 78% 29.88 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
11:53 AM 63.0 °F 53.1 °F 70% 29.88 in 10.0 mi Calm Calm - N/A   Scattered Clouds
12:53 PM 64.0 °F 53.1 °F 67% 29.89 in 10.0 mi WNW 4.6 mph - N/A   Mostly Cloudy
1:53 PM 66.0 °F 52.0 °F 60% 29.89 in 10.0 mi Variable 5.8 mph - N/A   Scattered Clouds
2:53 PM 66.0 °F 51.1 °F 59% 29.89 in 10.0 mi NW 6.9 mph - N/A   Scattered Clouds
3:53 PM 66.0 °F 51.1 °F 59% 29.90 in 10.0 mi NW 9.2 mph - N/A   Scattered Clouds
4:53 PM 66.9 °F 50.0 °F 54% 29.91 in 10.0 mi WNW 9.2 mph - N/A   Scattered Clouds
6:53 PM 63.0 °F 51.1 °F 65% 29.94 in 10.0 mi NW 6.9 mph - N/A   Scattered Clouds
7:53 PM 63.0 °F 51.1 °F 65% 29.96 in 10.0 mi North 3.5 mph - N/A   Partly Cloudy
8:53 PM 61.0 °F 51.1 °F 70% 29.97 in 10.0 mi Calm Calm - N/A   Clear
9:53 PM 57.9 °F 51.1 °F 78% 29.99 in 10.0 mi Calm Calm - N/A   Clear
10:53 PM 57.0 °F 51.1 °F 81% 29.99 in 10.0 mi Calm Calm - N/A   Clear
11:53 PM 55.9 °F 50.0 °F 80% 30.00 in 10.0 mi Calm Calm - N/A   Clear