Seattle, WA

12:00 PM PST on February 25, 2017 (GMT -0800)
Boeing Field-King County International

Weather History for KBFI - September, 2011

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Wednesday, September 14, 2011

  Actual Average Record
Temperature  
Mean Temperature 63 °F -  
Max Temperature 66 °F 72 °F 93 °F (1979)
Min Temperature 60 °F 52 °F 46 °F (1955)
Degree Days  
Heating Degree Days 2    
Growing Degree Days 13 (Base 50)    
Moisture  
Dew Point 53 °F    
Average Humidity 69    
Maximum Humidity 80    
Minimum Humidity 57    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.02 in    
Wind  
Wind Speed 2 mph (West)    
Max Wind Speed 6 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

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Date:

Astronomy

Sep. 14, 2011 Rise Set
Actual Time 6:45 AM PDT 7:23 PM PDT
Civil Twilight 6:13 AM PDT 7:54 PM PDT
Nautical Twilight 5:37 AM PDT 8:31 PM PDT
Astronomical Twilight 4:58 AM PDT 9:09 PM PDT
Moon 7:53 PM PDT (9/14) 9:16 AM PDT (9/14)
Length of Visible Light 13h 40m
Length of Day
12h 38m
Waning Gibbous, 95% of the Moon is Illuminated
Sep 14
Waning Gibbous
Sep 20
Last Quarter
Sep 27
New
Oct 3
First Quarter
Oct 11
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 54.0 °F 78% 30.08 in 10.0 mi NW 4.6 mph - N/A   Overcast
1:53 AM 61.0 °F 54.0 °F 78% 30.07 in 10.0 mi Calm Calm - N/A   Overcast
2:53 AM 60.8 °F 53.6 °F 77% 30.06 in 10.0 mi Calm Calm - N/A   Overcast
3:53 AM 61.0 °F 54.0 °F 78% 30.06 in 10.0 mi Calm Calm - N/A   Overcast
4:53 AM 60.8 °F 53.6 °F 77% 30.06 in 10.0 mi Calm Calm - N/A   Overcast
5:53 AM 60.8 °F 53.6 °F 77% 30.05 in 10.0 mi Calm Calm - N/A   Overcast
6:53 AM 60.1 °F 54.0 °F 80% 30.05 in 10.0 mi Calm Calm - N/A   Overcast
7:53 AM 62.1 °F 54.0 °F 75% 30.05 in 10.0 mi Calm Calm - N/A   Overcast
8:53 AM 63.0 °F 54.0 °F 72% 30.05 in 10.0 mi Calm Calm - N/A   Overcast
9:53 AM 63.0 °F 54.0 °F 72% 30.05 in 10.0 mi Calm Calm - N/A   Overcast
10:26 AM 62.6 °F 53.6 °F 72% 30.04 in 2.0 mi West 3.5 mph - N/A   Haze
10:35 AM 64.4 °F 53.6 °F 68% 30.04 in 10.0 mi NW 3.5 mph - N/A   Overcast
10:53 AM 64.0 °F 55.0 °F 73% 30.05 in 10.0 mi NW 3.5 mph - N/A   Overcast
11:53 AM 64.9 °F 54.0 °F 68% 30.04 in 10.0 mi West 5.8 mph - N/A   Overcast
12:53 PM 64.9 °F 52.0 °F 63% 30.03 in 9.0 mi Calm Calm - N/A   Overcast
1:53 PM 66.2 °F 51.8 °F 60% 30.02 in 10.0 mi South 4.6 mph - N/A   Overcast
2:53 PM 66.0 °F 51.1 °F 59% 30.01 in 10.0 mi Calm Calm - N/A   Overcast
3:53 PM 66.2 °F 51.8 °F 60% 29.99 in 10.0 mi WSW 3.5 mph - N/A   Overcast
4:53 PM 66.9 °F 51.1 °F 57% 29.98 in 10.0 mi Calm Calm - N/A   Overcast
5:53 PM 66.0 °F 51.1 °F 59% 29.96 in 10.0 mi Variable 5.8 mph - N/A   Overcast
6:53 PM 64.9 °F 50.0 °F 58% 29.95 in 10.0 mi Calm Calm - N/A   Overcast
7:53 PM 64.9 °F 50.0 °F 58% 29.95 in 10.0 mi Calm Calm - N/A   Overcast
8:53 PM 64.9 °F 51.1 °F 61% 29.95 in 10.0 mi Calm Calm - N/A   Overcast
9:53 PM 64.0 °F 52.0 °F 65% 29.95 in 10.0 mi Calm Calm - N/A   Overcast
10:53 PM 63.0 °F 53.1 °F 70% 29.94 in 10.0 mi Calm Calm - N/A   Overcast
11:53 PM 62.1 °F 53.1 °F 72% 29.94 in 10.0 mi Variable 3.5 mph - N/A   Overcast