Seattle Boeing, WA

3:20 AM PST on December 15, 2017 (GMT -0800)
Boeing Field-King County International

Weather History for KBFI - September, 2013

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Wednesday, September 11, 2013

  Actual Average Record
Temperature  
Mean Temperature 76 °F -  
Max Temperature 89 °F 68 °F 89 °F (2013)
Min Temperature 63 °F 51 °F 40 °F (1952)
Cooling Degree Days 10    
Growing Degree Days 26 (Base 50)    
Moisture  
Dew Point 57 °F    
Average Humidity 56    
Maximum Humidity 75    
Minimum Humidity 34    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 29.91 in    
Wind  
Wind Speed 3 mph (NW)    
Max Wind Speed 9 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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Astronomy

Sep. 11, 2013 Rise Set
Actual Time 6:41 AM PDT 7:28 PM PDT
Civil Twilight 6:10 AM PDT 7:59 PM PDT
Nautical Twilight 5:33 AM PDT 8:36 PM PDT
Astronomical Twilight 4:54 AM PDT 9:15 PM PDT
Moon 1:42 PM PDT (9/11) 11:02 PM PDT (9/11)
Length of Visible Light 13h 49m
Length of Day
12h 47m
Waxing Crescent, 40% of the Moon is Illuminated
Sep 11
Waxing Crescent
Sep 12
First Quarter
Sep 19
Full
Sep 26
Last Quarter
Oct 4
New

Hourly Weather History & Observations

Time (PDT) Temp. Heat Index Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 70.0 °F - 57.0 °F 63% 29.90 in 10.0 mi North 5.8 mph - N/A   Clear
1:53 AM 68.0 °F - 57.0 °F 68% 29.90 in 10.0 mi Calm Calm - N/A   Clear
2:53 AM 66.0 °F - 57.9 °F 75% 29.91 in 10.0 mi Calm Calm - N/A   Clear
3:53 AM 66.0 °F - 57.0 °F 73% 29.91 in 10.0 mi Calm Calm - N/A   Clear
4:53 AM 64.0 °F - 55.0 °F 73% 29.91 in 10.0 mi Calm Calm - N/A   Clear
5:53 AM 63.0 °F - 55.0 °F 75% 29.92 in 10.0 mi Calm Calm - N/A   Clear
6:53 AM 63.0 °F - 55.0 °F 75% 29.93 in 10.0 mi Calm Calm - N/A   Clear
7:53 AM 66.0 °F - 57.0 °F 73% 29.94 in 10.0 mi Calm Calm - N/A   Clear
8:53 AM 70.0 °F - 59.0 °F 68% 29.94 in 10.0 mi Calm Calm - N/A   Clear
9:53 AM 71.1 °F - 57.9 °F 63% 29.94 in 10.0 mi WNW 4.6 mph - N/A   Clear
10:53 AM 73.9 °F - 59.0 °F 59% 29.94 in 10.0 mi NW 5.8 mph - N/A   Clear
11:53 AM 77.0 °F - 59.0 °F 54% 29.93 in 10.0 mi WNW 5.8 mph - N/A   Clear
12:53 PM 82.0 °F 82.0 °F 57.9 °F 44% 29.92 in 10.0 mi Variable 5.8 mph - N/A   Clear
1:53 PM 84.0 °F 83.5 °F 57.9 °F 41% 29.91 in 10.0 mi Variable 6.9 mph - N/A   Clear
2:53 PM 86.0 °F 85.0 °F 57.9 °F 38% 29.89 in 10.0 mi NW 9.2 mph - N/A   Clear
3:53 PM 88.0 °F 86.7 °F 57.0 °F 35% 29.88 in 10.0 mi NW 9.2 mph - N/A   Clear
4:53 PM 88.0 °F 86.5 °F 55.9 °F 34% 29.87 in 10.0 mi NW 5.8 mph - N/A   Clear
5:53 PM 88.0 °F 86.7 °F 57.0 °F 35% 29.86 in 10.0 mi WNW 4.6 mph - N/A   Clear
6:53 PM 84.9 °F 83.9 °F 57.0 °F 38% 29.86 in 10.0 mi NW 4.6 mph - N/A   Clear
7:53 PM 80.1 °F 80.4 °F 57.0 °F 45% 29.87 in 10.0 mi Calm Calm - N/A   Clear
8:53 PM 78.1 °F - 55.9 °F 46% 29.89 in 10.0 mi Variable 3.5 mph - N/A   Clear
9:53 PM 75.0 °F - 55.9 °F 51% 29.91 in 10.0 mi Calm Calm - N/A   Clear
10:53 PM 73.9 °F - 57.0 °F 55% 29.92 in 10.0 mi Calm Calm - N/A   Clear
11:53 PM 72.0 °F - 57.9 °F 61% 29.93 in 10.0 mi Calm Calm - N/A   Clear