Seattle, WA

9:56 AM PST on November 19, 2019 (GMT -0800)
Seattle-Tacoma International

Weather History for KSEA - May, 2019

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Tuesday, May 21, 2019

  Actual Average Record
Temperature  
Mean Temperature 56 °F 57 °F  
Max Temperature 62 °F 66 °F 93 °F (1963)
Min Temperature 50 °F 48 °F 39 °F (1960)
Degree Days  
Heating Degree Days 9 8  
Month to date heating degree days 116 210  
Since 1 July heating degree days 3976 4478  
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 47 °F    
Average Humidity 75    
Maximum Humidity 89    
Minimum Humidity 60    
Precipitation  
Precipitation 0.02 in 0.06 in 0.55 in (2012)
Month to date precipitation 0.43 1.31  
Year to date precipitation 13.78 16.81  
Sea Level Pressure  
Sea Level Pressure 29.78 in    
Wind  
Wind Speed 7 mph (NNE)    
Max Wind Speed 15 mph    
Max Gust Speed 18 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. 21, 2019 Rise Set
Actual Time 5:25 AM PDT 8:46 PM PDT
Civil Twilight 4:48 AM PDT 9:24 PM PDT
Nautical Twilight 3:59 AM PDT 10:13 PM PDT
Astronomical Twilight 2:55 AM PDT 11:17 PM PDT
Moon 11:50 PM PDT (5/21) 7:43 AM PDT (5/21)
Length of Visible Light 16h 36m
Length of Day
15h 21m
Waning Gibbous, 91% of the Moon is Illuminated
May 21
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 52.0 °F 44.1 °F 74% 29.73 in 10.0 mi NE 6.9 mph - N/A   Overcast
1:53 AM 51.1 °F 45.0 °F 80% 29.72 in 10.0 mi NNE 8.1 mph - N/A   Overcast
2:53 AM 51.1 °F 46.0 °F 83% 29.72 in 10.0 mi NE 5.8 mph - 0.00 in Rain Light Rain
3:53 AM 51.1 °F 46.0 °F 83% 29.71 in 10.0 mi North 4.6 mph - 0.01 in Rain Light Rain
4:53 AM 51.1 °F 46.9 °F 86% 29.71 in 10.0 mi NNE 5.8 mph - 0.01 in Rain Light Rain
5:31 AM 51.1 °F 46.9 °F 86% 29.70 in 10.0 mi NE 5.8 mph - 0.00 in   Overcast
5:53 AM 51.1 °F 46.9 °F 86% 29.72 in 10.0 mi NE 5.8 mph - 0.00 in   Overcast
6:53 AM 51.1 °F 48.0 °F 89% 29.74 in 10.0 mi North 4.6 mph - N/A   Overcast
7:53 AM 52.0 °F 46.9 °F 83% 29.73 in 10.0 mi NNE 9.2 mph - N/A   Mostly Cloudy
8:53 AM 54.0 °F 46.9 °F 77% 29.75 in 10.0 mi North 9.2 mph - N/A   Mostly Cloudy
9:49 AM 55.4 °F 46.4 °F 72% 29.73 in 10.0 mi North 10.4 mph - N/A   Mostly Cloudy
9:53 AM 55.9 °F 46.9 °F 72% 29.75 in 10.0 mi North 8.1 mph - N/A   Mostly Cloudy
10:53 AM 55.9 °F 48.0 °F 75% 29.77 in 10.0 mi North 9.2 mph - N/A   Mostly Cloudy
11:41 AM 57.9 °F 46.9 °F 67% 29.75 in 10.0 mi NNW 8.1 mph - N/A   Mostly Cloudy
11:53 AM 57.0 °F 46.9 °F 69% 29.77 in 10.0 mi NW 6.9 mph - N/A   Mostly Cloudy
12:53 PM 59.0 °F 46.9 °F 64% 29.78 in 10.0 mi NNE 8.1 mph - N/A   Mostly Cloudy
1:53 PM 61.0 °F 48.0 °F 62% 29.79 in 10.0 mi North 10.4 mph - N/A   Mostly Cloudy
2:53 PM 59.0 °F 46.9 °F 64% 29.80 in 10.0 mi North 10.4 mph - N/A   Mostly Cloudy
3:53 PM 60.1 °F 46.9 °F 62% 29.80 in 10.0 mi NNE 12.7 mph - N/A   Mostly Cloudy
4:15 PM 60.1 °F 48.0 °F 64% 29.78 in 10.0 mi NE 9.2 mph - N/A   Mostly Cloudy
4:53 PM 61.0 °F 48.0 °F 62% 29.81 in 10.0 mi NNE 6.9 mph - N/A   Mostly Cloudy
5:53 PM 61.0 °F 48.0 °F 62% 29.82 in 10.0 mi Variable 6.9 mph - N/A   Mostly Cloudy
6:53 PM 61.0 °F 48.0 °F 62% 29.83 in 10.0 mi NNE 8.1 mph - N/A   Mostly Cloudy
7:53 PM 60.1 °F 48.9 °F 67% 29.85 in 10.0 mi NE 5.8 mph - N/A   Mostly Cloudy
8:53 PM 59.0 °F 48.0 °F 67% 29.87 in 10.0 mi NE 4.6 mph - N/A   Mostly Cloudy
9:53 PM 57.9 °F 48.9 °F 72% 29.90 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
10:53 PM 57.9 °F 48.9 °F 72% 29.91 in 10.0 mi Calm Calm - N/A   Overcast
11:53 PM 55.9 °F 48.0 °F 75% 29.92 in 10.0 mi South 3.5 mph - N/A   Mostly Cloudy