Seattle Boeing, WA

8:23 PM PDT on April 07, 2020 (GMT -0700)
Boeing Field-King County International

Weather History for KBFI - September, 2019

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Friday, September 20, 2019

  Actual Average Record
Temperature  
Mean Temperature 63 °F -  
Max Temperature 68 °F 67 °F 88 °F (1974)
Min Temperature 60 °F 51 °F 40 °F (1949)
Degree Days  
Heating Degree Days 2    
Growing Degree Days 13 (Base 50)    
Moisture  
Dew Point 55 °F    
Average Humidity 76    
Maximum Humidity 86    
Minimum Humidity 61    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.10 in    
Wind  
Wind Speed 4 mph (SE)    
Max Wind Speed 8 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. 20, 2019 Rise Set
Actual Time 6:53 AM PDT 7:11 PM PDT
Civil Twilight 6:22 AM PDT 7:41 PM PDT
Nautical Twilight 5:45 AM PDT 8:18 PM PDT
Astronomical Twilight 5:08 AM PDT 8:55 PM PDT
Moon 10:39 PM PDT (9/20) 1:28 PM PDT (9/20)
Length of Visible Light 13h 19m
Length of Day
12h 18m
Waning Gibbous, 64% of the Moon is Illuminated
Sep 20
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 61.0 °F 55.9 °F 83% 30.06 in 10.0 mi SE 5.8 mph - N/A   Overcast
1:53 AM 60.1 °F 55.9 °F 86% 30.06 in 10.0 mi SSE 3.5 mph - N/A   Overcast
2:00 AM 60.1 °F 55.9 °F 86% 30.07 in 10.0 mi SW 3.5 mph - N/A   Overcast
2:53 AM 61.0 °F 55.9 °F 83% 30.06 in 10.0 mi SSE 3.5 mph - N/A   Overcast
3:27 AM 60.1 °F 55.9 °F 86% 30.06 in 10.0 mi SE 4.6 mph - N/A   Overcast
3:53 AM 60.1 °F 55.9 °F 86% 30.06 in 10.0 mi SSE 8.1 mph - N/A   Overcast
4:53 AM 60.1 °F 55.9 °F 86% 30.06 in 10.0 mi SE 6.9 mph - N/A   Overcast
5:53 AM 60.1 °F 55.0 °F 83% 30.06 in 10.0 mi SE 4.6 mph - N/A   Overcast
6:53 AM 60.1 °F 55.0 °F 83% 30.08 in 10.0 mi ESE 5.8 mph - N/A   Overcast
7:00 AM 60.1 °F 55.0 °F 83% 30.08 in 10.0 mi SE 4.6 mph - N/A   Overcast
7:53 AM 60.1 °F 55.0 °F 83% 30.08 in 10.0 mi ESE 4.6 mph - N/A   Overcast
8:43 AM 61.0 °F 55.0 °F 81% 30.09 in 10.0 mi SSE 4.6 mph - N/A   Overcast
8:51 AM 60.8 °F 55.4 °F 82% 30.10 in 10.0 mi SE 4.6 mph - N/A   Overcast
8:53 AM 61.0 °F 55.0 °F 81% 30.10 in 10.0 mi SE 4.6 mph - N/A   Overcast
9:53 AM 61.0 °F 55.0 °F 81% 30.10 in 10.0 mi SSE 4.6 mph - N/A   Overcast
10:53 AM 62.1 °F 55.0 °F 78% 30.11 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
11:53 AM 63.0 °F 54.0 °F 72% 30.11 in 10.0 mi South 3.5 mph - N/A   Mostly Cloudy
12:53 PM 64.9 °F 54.0 °F 68% 30.12 in 10.0 mi SSE 4.6 mph - N/A   Mostly Cloudy
1:53 PM 66.9 °F 54.0 °F 63% 30.12 in 10.0 mi South 3.5 mph - N/A   Mostly Cloudy
2:53 PM 66.9 °F 54.0 °F 63% 30.12 in 10.0 mi East 4.6 mph - N/A   Overcast
3:29 PM 66.9 °F 54.0 °F 63% 30.12 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
3:53 PM 66.9 °F 54.0 °F 63% 30.13 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
4:53 PM 66.9 °F 53.1 °F 61% 30.12 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
5:53 PM 66.9 °F 54.0 °F 63% 30.12 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
6:53 PM 66.9 °F 53.1 °F 61% 30.11 in 10.0 mi Calm Calm - N/A   Partly Cloudy
7:53 PM 64.9 °F 54.0 °F 68% 30.12 in 10.0 mi Calm Calm - N/A   Partly Cloudy
8:53 PM 62.1 °F 54.0 °F 75% 30.12 in 10.0 mi Calm Calm - N/A   Partly Cloudy
9:53 PM 60.1 °F 54.0 °F 80% 30.13 in 10.0 mi SE 3.5 mph - N/A   Clear
10:53 PM 61.0 °F 54.0 °F 78% 30.13 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
11:53 PM 61.0 °F 54.0 °F 78% 30.14 in 10.0 mi ESE 3.5 mph - N/A   Partly Cloudy