Seatac, WA

10:44 PM PDT on September 28, 2016 (GMT -0700)
Seattle-Tacoma International

Weather History for KSEA - May, 2013

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Tuesday, May 7, 2013

  Actual Average Record
Temperature  
Mean Temperature 61 °F 54 °F  
Max Temperature 69 °F 63 °F 82 °F (2016)
Min Temperature 52 °F 46 °F 33 °F (1962)
Degree Days  
Heating Degree Days 4 11  
Month to date heating degree days 30 80  
Since 1 July heating degree days 4110 4348  
Cooling Degree Days 0 0  
Month to date cooling degree days 10 0  
Year to date cooling degree days 10 0  
Growing Degree Days 10 (Base 50)    
Moisture  
Dew Point 49 °F    
Average Humidity 72    
Maximum Humidity 89    
Minimum Humidity 55    
Precipitation  
Precipitation 0.00 in 0.06 in 0.66 in (1983)
Month to date precipitation 0.00 0.46  
Year to date precipitation 14.37 15.96  
Sea Level Pressure  
Sea Level Pressure 29.97 in    
Wind  
Wind Speed 7 mph (SSW)    
Max Wind Speed 13 mph    
Max Gust Speed 18 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

Daily Weather History Graph

Daily Weather History Graph

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Date:

Astronomy

May. 07, 2013 Rise Set
Actual Time 5:42 AM PDT 8:29 PM PDT
Civil Twilight 5:07 AM PDT 9:05 PM PDT
Nautical Twilight 4:22 AM PDT 9:50 PM PDT
Astronomical Twilight 3:29 AM PDT 10:43 PM PDT
Moon 4:29 AM PDT (5/7) 6:27 PM PDT (5/7)
Length of Visible Light 15h 57m
Length of Day
14h 46m
Waning Crescent, 5% of the Moon is Illuminated
May 7
Waning Crescent
May 9
New
May 17
First Quarter
May 24
Full
May 31
Last Quarter

Hourly Weather History & Observations

Time (PDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 59.0 °F 48.2 °F 67% 29.86 in 10.0 mi Calm Calm - N/A   Clear
1:53 AM 55.9 °F 48.9 °F 77% 29.88 in 10.0 mi SSW 8.1 mph - N/A   Clear
2:53 AM 54.0 °F 48.9 °F 83% 29.90 in 10.0 mi SW 9.2 mph - N/A   Clear
3:29 AM 51.8 °F 48.2 °F 88% 29.91 in 10.0 mi SSW 9.2 mph - N/A   Partly Cloudy
3:46 AM 51.8 °F 48.2 °F 88% 29.92 in 10.0 mi SSW 11.5 mph - N/A   Mostly Cloudy
3:53 AM 52.0 °F 48.9 °F 89% 29.94 in 10.0 mi SW 8.1 mph - N/A   Mostly Cloudy
4:44 AM 51.8 °F 48.2 °F 88% 29.94 in 10.0 mi SSW 11.5 mph - N/A   Overcast
4:53 AM 52.0 °F 48.0 °F 86% 29.96 in 10.0 mi SSW 9.2 mph - N/A   Overcast
5:47 AM 51.8 °F 48.2 °F 88% 29.95 in 10.0 mi SSW 10.4 mph - N/A   Overcast
5:53 AM 52.0 °F 48.0 °F 86% 29.97 in 10.0 mi SSW 10.4 mph - N/A   Overcast
6:53 AM 53.1 °F 48.0 °F 83% 29.98 in 10.0 mi SSW 9.2 mph - N/A   Overcast
7:53 AM 53.1 °F 48.0 °F 83% 29.99 in 10.0 mi SSW 10.4 mph - N/A   Overcast
8:53 AM 54.0 °F 48.0 °F 80% 30.01 in 10.0 mi SW 6.9 mph - N/A   Overcast
9:40 AM 55.4 °F 48.2 °F 77% 29.99 in 10.0 mi SW 6.9 mph - N/A   Overcast
9:53 AM 55.0 °F 48.0 °F 77% 30.01 in 10.0 mi SSW 6.9 mph - N/A   Overcast
10:53 AM 57.0 °F 48.9 °F 74% 30.01 in 10.0 mi South 4.6 mph - N/A   Overcast
11:36 AM 59.0 °F 50.0 °F 72% 29.99 in 10.0 mi SSW 8.1 mph - N/A   Overcast
11:53 AM 60.1 °F 48.9 °F 67% 30.01 in 10.0 mi SW 5.8 mph - N/A   Mostly Cloudy
12:16 PM 60.8 °F 50.0 °F 68% 29.99 in 10.0 mi Variable 5.8 mph - N/A   Scattered Clouds
12:53 PM 61.0 °F 48.9 °F 64% 30.00 in 10.0 mi WSW 5.8 mph - N/A   Partly Cloudy
1:53 PM 64.0 °F 50.0 °F 60% 29.99 in 10.0 mi WSW 6.9 mph - N/A   Clear
2:53 PM 64.9 °F 50.0 °F 58% 29.99 in 10.0 mi Variable 4.6 mph - N/A   Clear
3:53 PM 66.9 °F 51.1 °F 57% 29.98 in 10.0 mi SSW 8.1 mph - N/A   Clear
4:53 PM 68.0 °F 51.1 °F 55% 29.97 in 10.0 mi Variable 4.6 mph - N/A   Clear
5:53 PM 68.0 °F 52.0 °F 56% 29.97 in 10.0 mi South 5.8 mph - N/A   Clear
6:53 PM 66.9 °F 51.1 °F 57% 29.97 in 10.0 mi SSW 8.1 mph - N/A   Clear
7:53 PM 64.9 °F 51.1 °F 61% 29.97 in 10.0 mi SW 5.8 mph - N/A   Clear
8:53 PM 61.0 °F 50.0 °F 67% 29.99 in 10.0 mi WSW 8.1 mph - N/A   Clear
9:53 PM 57.0 °F 48.9 °F 74% 30.01 in 10.0 mi SW 6.9 mph - N/A   Clear
10:53 PM 55.0 °F 48.0 °F 77% 30.03 in 10.0 mi SSW 6.9 mph - N/A   Clear
11:53 PM 53.1 °F 48.0 °F 83% 30.04 in 10.0 mi SSW 8.1 mph - N/A   Clear