Seattle, WA

3:17 AM PDT on July 17, 2019 (GMT -0700)
Seattle-Tacoma International

Weather History for KSEA - May, 2019

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Wednesday, May 1, 2019

  Actual Average Record
Temperature  
Mean Temperature 54 °F 53 °F  
Max Temperature 64 °F 62 °F 85 °F (2014)
Min Temperature 43 °F 44 °F 28 °F (1954)
Degree Days  
Heating Degree Days 11 12  
Month to date heating degree days 11 12  
Since 1 July heating degree days 3871 4280  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 6 0  
Growing Degree Days 3 (Base 50)    
Moisture  
Dew Point 34 °F    
Average Humidity 47    
Maximum Humidity 66    
Minimum Humidity 27    
Precipitation  
Precipitation 0.00 in 0.07 in 0.81 in (1949)
Month to date precipitation 0.00 0.07  
Year to date precipitation 13.35 15.57  
Snow  
Snow 0.00 in - T in (1965)
Month to date snowfall 0.0  
Since 1 July snowfall 21.0  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.07 in    
Wind  
Wind Speed 11 mph (SSW)    
Max Wind Speed 18 mph    
Max Gust Speed 24 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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Astronomy

May. 01, 2019 Rise Set
Actual Time 5:52 AM PDT 8:20 PM PDT
Civil Twilight 5:18 AM PDT 8:55 PM PDT
Nautical Twilight 4:35 AM PDT 9:38 PM PDT
Astronomical Twilight 3:46 AM PDT 10:28 PM PDT
Moon 5:01 AM PDT (5/1) 4:55 PM PDT (5/1)
Length of Visible Light 15h 36m
Length of Day
14h 28m
Waning Crescent, 10% of the Moon is Illuminated
May 1
Waning Crescent
May 4
New
May 11
First Quarter
May 18
Full
May 26
Last Quarter

Hourly Weather History & Observations

Time (PDT) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 52.0 °F - 27.0 °F 38% 30.08 in 10.0 mi SE 9.2 mph - N/A   Clear
1:53 AM 48.9 °F - 27.0 °F 43% 30.09 in 10.0 mi SE 8.1 mph - N/A   Clear
2:53 AM 46.9 °F - 27.0 °F 46% 30.08 in 10.0 mi SSE 6.9 mph - N/A   Clear
3:53 AM 48.0 °F - 27.0 °F 44% 30.06 in 10.0 mi SSE 4.6 mph - N/A   Clear
4:53 AM 46.0 °F 41.9 °F 28.0 °F 50% 30.06 in 10.0 mi SSE 8.1 mph - N/A   Clear
5:53 AM 44.1 °F 40.1 °F 30.0 °F 58% 30.07 in 10.0 mi South 6.9 mph - N/A   Partly Cloudy
6:53 AM 46.0 °F 41.9 °F 33.1 °F 61% 30.08 in 10.0 mi South 8.1 mph - N/A   Scattered Clouds
7:53 AM 48.0 °F - 36.0 °F 63% 30.08 in 10.0 mi SSW 10.4 mph - N/A   Scattered Clouds
8:53 AM 50.0 °F - 39.0 °F 66% 30.09 in 10.0 mi SW 10.4 mph - N/A   Scattered Clouds
9:53 AM 52.0 °F - 39.9 °F 63% 30.09 in 10.0 mi SSW 11.5 mph - N/A   Scattered Clouds
10:53 AM 55.0 °F - 39.0 °F 55% 30.09 in 10.0 mi WSW 10.4 mph - N/A   Scattered Clouds
11:53 AM 57.9 °F - 39.9 °F 51% 30.08 in 10.0 mi SSW 13.8 mph 18.4 mph N/A   Scattered Clouds
12:53 PM 60.1 °F - 39.9 °F 47% 30.07 in 10.0 mi South 13.8 mph 20.7 mph N/A   Scattered Clouds
1:53 PM 61.0 °F - 33.1 °F 35% 30.06 in 10.0 mi SSW 16.1 mph 23.0 mph N/A   Scattered Clouds
2:53 PM 63.0 °F - 33.1 °F 33% 30.05 in 10.0 mi SSW 15.0 mph 21.9 mph N/A   Scattered Clouds
3:53 PM 63.0 °F - 30.0 °F 29% 30.04 in 10.0 mi SSW 15.0 mph - N/A   Scattered Clouds
4:53 PM 63.0 °F - 28.9 °F 28% 30.03 in 10.0 mi SW 12.7 mph - N/A   Scattered Clouds
5:53 PM 61.0 °F - 32.0 °F 34% 30.02 in 10.0 mi WSW 12.7 mph - N/A   Partly Cloudy
6:53 PM 57.9 °F - 37.0 °F 46% 30.02 in 10.0 mi SW 16.1 mph - N/A   Partly Cloudy
7:53 PM 54.0 °F - 37.0 °F 53% 30.04 in 10.0 mi SW 10.4 mph - N/A   Scattered Clouds
8:53 PM 51.1 °F - 37.9 °F 61% 30.06 in 10.0 mi SW 11.5 mph - N/A   Scattered Clouds
9:53 PM 50.0 °F - 37.9 °F 63% 30.07 in 10.0 mi SSW 15.0 mph - N/A   Partly Cloudy
10:53 PM 50.0 °F - 37.9 °F 63% 30.08 in 10.0 mi SSW 11.5 mph - N/A   Mostly Cloudy
11:15 PM 50.0 °F - 37.9 °F 63% 30.06 in 10.0 mi SSW 9.2 mph - N/A   Overcast
11:53 PM 50.0 °F - 37.0 °F 61% 30.09 in 10.0 mi South 9.2 mph - N/A   Overcast