Seattle, WA

6:25 AM PDT on September 19, 2019 (GMT -0700)
Seattle-Tacoma International

Weather History for KSEA - May, 2019

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Monday, May 20, 2019

  Actual Average Record
Temperature  
Mean Temperature 55 °F 57 °F  
Max Temperature 57 °F 66 °F 92 °F (1963)
Min Temperature 52 °F 48 °F 40 °F (1960)
Degree Days  
Heating Degree Days 10 8  
Month to date heating degree days 107 202  
Since 1 July heating degree days 3967 4470  
Cooling Degree Days 0 0  
Month to date cooling degree days 14 0  
Year to date cooling degree days 20 0  
Growing Degree Days 6 (Base 50)    
Moisture  
Dew Point 48 °F    
Average Humidity 83    
Maximum Humidity 89    
Minimum Humidity 77    
Precipitation  
Precipitation 0.05 in 0.06 in 0.56 in (2007)
Month to date precipitation 0.41 1.25  
Year to date precipitation 13.76 16.75  
Sea Level Pressure  
Sea Level Pressure 29.79 in    
Wind  
Wind Speed 8 mph (South)    
Max Wind Speed 15 mph    
Max Gust Speed 19 mph    
Visibility 10 miles    
Events Rain    
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. 20, 2019 Rise Set
Actual Time 5:26 AM PDT 8:45 PM PDT
Civil Twilight 4:49 AM PDT 9:23 PM PDT
Nautical Twilight 4:00 AM PDT 10:12 PM PDT
Astronomical Twilight 2:58 AM PDT 11:15 PM PDT
Moon 10:54 PM PDT (5/20) 6:58 AM PDT (5/20)
Length of Visible Light 16h 33m
Length of Day
15h 18m
Waning Gibbous, 96% of the Moon is Illuminated
May 20
Waning Gibbous
May 26
Last Quarter
Jun 3
New
Jun 9
First Quarter
Jun 17
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 55.9 °F 50.0 °F 80% 29.79 in 10.0 mi SW 6.9 mph - N/A   Overcast
1:15 AM 57.0 °F 50.0 °F 77% 29.78 in 10.0 mi SSW 5.8 mph - N/A   Overcast
1:53 AM 55.9 °F 48.9 °F 77% 29.80 in 10.0 mi SW 6.9 mph - N/A   Overcast
2:53 AM 55.9 °F 48.9 °F 77% 29.80 in 10.0 mi SW 6.9 mph - N/A   Overcast
3:53 AM 55.0 °F 48.9 °F 80% 29.79 in 10.0 mi SSW 8.1 mph - N/A   Overcast
4:14 AM 55.0 °F 48.0 °F 77% 29.78 in 10.0 mi SSW 9.2 mph - N/A   Overcast
4:53 AM 55.0 °F 48.0 °F 77% 29.80 in 10.0 mi SW 5.8 mph - N/A   Overcast
5:22 AM 55.0 °F 48.0 °F 77% 29.78 in 10.0 mi South 5.8 mph - N/A   Overcast
5:53 AM 55.0 °F 48.9 °F 80% 29.80 in 10.0 mi South 9.2 mph - 0.00 in Rain Light Rain
6:53 AM 54.0 °F 48.9 °F 83% 29.80 in 10.0 mi South 9.2 mph - 0.00 in Rain Light Rain
7:53 AM 54.0 °F 50.0 °F 86% 29.80 in 6.0 mi South 10.4 mph - 0.01 in Rain Light Rain
8:53 AM 55.0 °F 50.0 °F 83% 29.80 in 10.0 mi South 9.2 mph - 0.00 in Rain Light Rain
9:00 AM 55.0 °F 51.1 °F 86% 29.78 in 10.0 mi South 8.1 mph - 0.00 in Rain Light Rain
9:38 AM 55.0 °F 51.1 °F 86% 29.78 in 10.0 mi South 9.2 mph - 0.01 in Rain Light Rain
9:53 AM 55.0 °F 50.0 °F 83% 29.80 in 10.0 mi South 10.4 mph - 0.01 in Rain Light Rain
10:16 AM 55.9 °F 51.1 °F 84% 29.78 in 10.0 mi South 6.9 mph - 0.00 in Rain Light Rain
10:38 AM 55.9 °F 48.9 °F 77% 29.79 in 10.0 mi SSW 10.4 mph - 0.00 in Rain Light Rain
10:53 AM 55.9 °F 48.9 °F 77% 29.80 in 10.0 mi South 6.9 mph - 0.00 in Rain Light Rain
11:53 AM 57.0 °F 48.9 °F 74% 29.80 in 10.0 mi SSW 9.2 mph - 0.00 in   Overcast
12:34 PM 55.9 °F 48.0 °F 75% 29.78 in 10.0 mi SW 8.1 mph - N/A   Overcast
12:53 PM 55.0 °F 51.1 °F 86% 29.81 in 10.0 mi SSW 12.7 mph - 0.00 in Rain Light Rain
1:53 PM 55.0 °F 48.9 °F 80% 29.81 in 10.0 mi SSW 11.5 mph - 0.00 in   Overcast
2:50 PM 55.4 °F 48.2 °F 77% 29.79 in 10.0 mi SSW 10.4 mph - 0.00 in Rain Light Rain
2:53 PM 55.0 °F 48.9 °F 80% 29.81 in 10.0 mi SSW 10.4 mph - 0.00 in Rain Light Rain
3:53 PM 55.0 °F 48.9 °F 80% 29.82 in 9.0 mi SSW 6.9 mph - 0.02 in Rain Light Rain
4:53 PM 55.9 °F 46.9 °F 72% 29.81 in 10.0 mi SSW 6.9 mph - 0.00 in   Overcast
5:53 PM 55.9 °F 46.9 °F 72% 29.80 in 10.0 mi Variable 3.5 mph - 0.00 in Rain Light Rain
6:53 PM 55.0 °F 48.9 °F 80% 29.78 in 10.0 mi East 9.2 mph - 0.01 in   Overcast
7:53 PM 54.0 °F 46.9 °F 77% 29.78 in 10.0 mi East 6.9 mph - 0.00 in   Overcast
8:53 PM 53.1 °F 46.0 °F 77% 29.76 in 10.0 mi ENE 12.7 mph - 0.00 in Rain Light Rain
9:53 PM 52.0 °F 45.0 °F 77% 29.75 in 10.0 mi ENE 11.5 mph - 0.00 in   Overcast
10:53 PM 52.0 °F 46.0 °F 80% 29.75 in 10.0 mi Calm Calm - N/A   Overcast
11:53 PM 52.0 °F 44.1 °F 74% 29.74 in 10.0 mi NE 5.8 mph - N/A   Overcast