Seattle Boeing, WA

10:16 PM PDT on August 17, 2017 (GMT -0700)
Boeing Field-King County International

Weather History for KBFI - September, 2014

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Sunday, September 21, 2014

  Actual Average Record
Temperature  
Mean Temperature 70 °F -  
Max Temperature 82 °F 69 °F 88 °F (1952)
Min Temperature 57 °F 51 °F 39 °F (1955)
Cooling Degree Days 4    
Growing Degree Days 20 (Base 50)    
Moisture  
Dew Point 55 °F    
Average Humidity 63    
Maximum Humidity 88    
Minimum Humidity 38    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 29.87 in    
Wind  
Wind Speed 3 mph (SSE)    
Max Wind Speed 10 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. 21, 2014 Rise Set
Actual Time 6:54 AM PDT 7:08 PM PDT
Civil Twilight 6:24 AM PDT 7:39 PM PDT
Nautical Twilight 5:47 AM PDT 8:15 PM PDT
Astronomical Twilight 5:10 AM PDT 8:52 PM PDT
Moon 4:25 AM PDT (9/21) 5:53 PM PDT (9/21)
Length of Visible Light 13h 15m
Length of Day
12h 14m
Waning Crescent, 6% of the Moon is Illuminated
Sep 21
Waning Crescent
Sep 23
New
Oct 1
First Quarter
Oct 8
Full
Oct 15
Last Quarter

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 63.0 °F - 55.0 °F 75% 29.88 in 10.0 mi Calm Calm - N/A   Clear
1:53 AM 62.1 °F - 54.0 °F 75% 29.88 in 10.0 mi Calm Calm - N/A   Clear
2:53 AM 62.1 °F - 54.0 °F 75% 29.86 in 10.0 mi Calm Calm - N/A   Clear
3:53 AM 60.1 °F - 54.0 °F 80% 29.86 in 10.0 mi Calm Calm - N/A   Clear
4:53 AM 60.1 °F - 54.0 °F 80% 29.86 in 10.0 mi Calm Calm - N/A   Clear
5:53 AM 59.0 °F - 53.1 °F 81% 29.86 in 10.0 mi Calm Calm - N/A   Clear
6:53 AM 57.2 °F - 53.6 °F 88% 29.86 in 10.0 mi SE 3.5 mph - N/A   Scattered Clouds
7:53 AM 59.0 °F - 54.0 °F 83% 29.88 in 10.0 mi SE 4.6 mph - N/A   Clear
8:53 AM 62.1 °F - 55.0 °F 78% 29.88 in 10.0 mi SE 5.8 mph - N/A   Clear
9:53 AM 66.9 °F - 55.9 °F 68% 29.88 in 10.0 mi ESE 4.6 mph - N/A   Clear
10:53 AM 73.0 °F - 57.0 °F 57% 29.88 in 10.0 mi SSE 6.9 mph - N/A   Clear
11:53 AM 77.0 °F - 55.9 °F 48% 29.87 in 10.0 mi SE 6.9 mph - N/A   Clear
12:53 PM 80.6 °F 80.3 °F 53.6 °F 39% 29.86 in 10.0 mi Variable 4.6 mph - N/A   Clear
1:53 PM 82.9 °F 82.0 °F 55.0 °F 38% 29.84 in 10.0 mi South 6.9 mph - N/A   Clear
2:53 PM 82.9 °F 82.4 °F 57.0 °F 41% 29.83 in 10.0 mi Variable 6.9 mph - N/A   Clear
3:53 PM 82.9 °F 82.0 °F 55.0 °F 38% 29.83 in 10.0 mi South 8.1 mph - N/A   Clear
4:53 PM 82.0 °F 81.4 °F 55.0 °F 39% 29.84 in 10.0 mi SSW 4.6 mph - N/A   Clear
5:53 PM 79.0 °F - 55.9 °F 45% 29.85 in 10.0 mi SSE 6.9 mph - N/A   Clear
6:53 PM 75.0 °F - 55.9 °F 51% 29.86 in 10.0 mi SSE 5.8 mph - N/A   Clear
7:53 PM 71.1 °F - 55.0 °F 57% 29.88 in 10.0 mi Variable 4.6 mph - N/A   Partly Cloudy
8:53 PM 68.0 °F - 55.0 °F 63% 29.91 in 10.0 mi South 10.4 mph - N/A   Clear
9:53 PM 66.0 °F - 55.0 °F 68% 29.93 in 10.0 mi South 6.9 mph - N/A   Clear
10:53 PM 64.9 °F - 55.9 °F 73% 29.94 in 10.0 mi South 9.2 mph - N/A   Clear
11:53 PM 64.0 °F - 55.9 °F 75% 29.95 in 10.0 mi SE 9.2 mph - N/A   Partly Cloudy