Seattle Boeing, WA

4:35 PM PDT on September 20, 2019 (GMT -0700)
Boeing Field-King County International

Weather History for KBFI - August, 2019

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Sunday, August 18, 2019

  Actual Average Record
Temperature  
Mean Temperature 68 °F -  
Max Temperature 77 °F 74 °F 88 °F (1991)
Min Temperature 60 °F 55 °F 47 °F (1951)
Cooling Degree Days 2    
Growing Degree Days 18 (Base 50)    
Moisture  
Dew Point 54 °F    
Average Humidity 65    
Maximum Humidity 80    
Minimum Humidity 45    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 29.88 in    
Wind  
Wind Speed 3 mph (SW)    
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

Daily Weather History Graph

Daily Weather History Graph

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Astronomy

Aug. 18, 2019 Rise Set
Actual Time 6:09 AM PDT 8:16 PM PDT
Civil Twilight 5:35 AM PDT 8:49 PM PDT
Nautical Twilight 4:54 AM PDT 9:30 PM PDT
Astronomical Twilight 4:07 AM PDT 10:16 PM PDT
Moon 10:01 PM PDT (8/18) 9:08 AM PDT (8/18)
Length of Visible Light 15h 13m
Length of Day
14h 07m
Waning Gibbous, 91% of the Moon is Illuminated
Aug 18
Waning Gibbous
Aug 23
Last Quarter
Aug 30
New
Sep 5
First Quarter
Sep 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 64.0 °F 54.0 °F 70% 29.92 in 10.0 mi South 5.8 mph - N/A   Overcast
1:53 AM 63.0 °F 54.0 °F 72% 29.91 in 10.0 mi South 4.6 mph - N/A   Overcast
2:53 AM 61.0 °F 54.0 °F 78% 29.91 in 10.0 mi South 3.5 mph - N/A   Scattered Clouds
3:53 AM 61.0 °F 54.0 °F 78% 29.90 in 10.0 mi South 3.5 mph - N/A   Clear
4:46 AM 60.1 °F 54.0 °F 80% 29.89 in 10.0 mi Calm Calm - N/A   Overcast
4:53 AM 61.0 °F 54.0 °F 78% 29.90 in 10.0 mi Calm Calm - N/A   Overcast
5:53 AM 61.0 °F 54.0 °F 78% 29.89 in 10.0 mi Calm Calm - N/A   Overcast
6:30 AM 60.1 °F 54.0 °F 80% 29.89 in 10.0 mi NNW 4.6 mph - N/A   Mostly Cloudy
6:53 AM 60.1 °F 54.0 °F 80% 29.88 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
7:51 AM 62.6 °F 55.4 °F 77% 29.88 in 10.0 mi Calm Calm - N/A   Scattered Clouds
7:53 AM 62.1 °F 55.0 °F 78% 29.88 in 10.0 mi Calm Calm - N/A   Partly Cloudy
8:53 AM 64.0 °F 55.0 °F 73% 29.89 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
9:53 AM 64.9 °F 54.0 °F 68% 29.89 in 10.0 mi West 4.6 mph - N/A   Overcast
10:53 AM 66.9 °F 54.0 °F 63% 29.89 in 10.0 mi Variable 3.5 mph - N/A   Overcast
11:53 AM 69.1 °F 54.0 °F 58% 29.89 in 10.0 mi South 6.9 mph - N/A   Mostly Cloudy
12:53 PM 71.1 °F 54.0 °F 55% 29.89 in 10.0 mi ESE 4.6 mph - N/A   Mostly Cloudy
1:53 PM 73.9 °F 53.1 °F 48% 29.88 in 10.0 mi Calm Calm - N/A   Scattered Clouds
2:53 PM 73.9 °F 53.1 °F 48% 29.86 in 10.0 mi Calm Calm - N/A   Scattered Clouds
3:53 PM 75.9 °F 53.1 °F 45% 29.85 in 10.0 mi Variable 3.5 mph - N/A   Partly Cloudy
4:53 PM 75.9 °F 53.1 °F 45% 29.85 in 10.0 mi WSW 3.5 mph - N/A   Partly Cloudy
5:53 PM 75.9 °F 54.0 °F 46% 29.84 in 10.0 mi WSW 5.8 mph - N/A   Partly Cloudy
6:53 PM 75.0 °F 54.0 °F 48% 29.84 in 10.0 mi SSW 6.9 mph - N/A   Clear
7:53 PM 71.1 °F 54.0 °F 55% 29.84 in 10.0 mi West 4.6 mph - N/A   Clear
8:53 PM 64.9 °F 53.1 °F 65% 29.86 in 10.0 mi NW 4.6 mph - N/A   Clear
9:53 PM 66.0 °F 53.1 °F 63% 29.88 in 10.0 mi Calm Calm - N/A   Clear
10:53 PM 66.0 °F 54.0 °F 65% 29.88 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
11:53 PM 66.0 °F 52.0 °F 60% 29.89 in 10.0 mi North 3.5 mph - N/A   Overcast