Seattle, WA

1:19 AM PDT on July 17, 2019 (GMT -0700)
Seattle-Tacoma International

Weather History for KSEA - May, 2019

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Saturday, May 18, 2019

  Actual Average Record
Temperature  
Mean Temperature 61 °F 56 °F  
Max Temperature 71 °F 65 °F 89 °F (1958)
Min Temperature 51 °F 48 °F 37 °F (1950)
Degree Days  
Heating Degree Days 4 9  
Month to date heating degree days 94 186  
Since 1 July heating degree days 3954 4454  
Cooling Degree Days 0 0  
Month to date cooling degree days 14 0  
Year to date cooling degree days 20 0  
Growing Degree Days 10 (Base 50)    
Moisture  
Dew Point 44 °F    
Average Humidity 56    
Maximum Humidity 77    
Minimum Humidity 35    
Precipitation  
Precipitation 0.00 in 0.06 in 0.72 in (2005)
Month to date precipitation 0.36 1.13  
Year to date precipitation 13.71 16.63  
Sea Level Pressure  
Sea Level Pressure 29.79 in    
Wind  
Wind Speed 6 mph (NNW)    
Max Wind Speed 16 mph    
Max Gust Speed 19 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. 18, 2019 Rise Set
Actual Time 5:28 AM PDT 8:43 PM PDT
Civil Twilight 4:51 AM PDT 9:20 PM PDT
Nautical Twilight 4:03 AM PDT 10:08 PM PDT
Astronomical Twilight 3:03 AM PDT 11:10 PM PDT
Moon 8:41 PM PDT (5/18) 5:45 AM PDT (5/18)
Length of Visible Light 16h 28m
Length of Day
15h 14m
Full, 100% of the Moon is Illuminated
May 18
Full
May 18
Full
May 26
Last Quarter
Jun 3
New
Jun 9
First 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 53.1 °F 46.0 °F 77% 29.97 in 10.0 mi SSE 3.5 mph - N/A   Overcast
1:53 AM 53.1 °F 46.0 °F 77% 29.96 in 10.0 mi SSW 3.5 mph - N/A   Overcast
2:53 AM 54.0 °F 46.0 °F 75% 29.95 in 10.0 mi Calm Calm - N/A   Overcast
3:53 AM 54.0 °F 45.0 °F 72% 29.94 in 10.0 mi Calm Calm - N/A   Overcast
4:53 AM 53.1 °F 45.0 °F 74% 29.92 in 10.0 mi East 4.6 mph - N/A   Mostly Cloudy
5:53 AM 53.1 °F 46.0 °F 77% 29.90 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
6:53 AM 53.1 °F 46.0 °F 77% 29.90 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
7:53 AM 55.9 °F 45.0 °F 67% 29.88 in 10.0 mi East 5.8 mph - N/A   Mostly Cloudy
8:53 AM 57.9 °F 45.0 °F 62% 29.87 in 10.0 mi East 4.6 mph - N/A   Mostly Cloudy
9:53 AM 60.1 °F 44.1 °F 55% 29.85 in 10.0 mi SSE 3.5 mph - N/A   Mostly Cloudy
10:53 AM 63.0 °F 43.0 °F 48% 29.83 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
11:53 AM 64.9 °F 45.0 °F 48% 29.81 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
12:53 PM 66.0 °F 45.0 °F 47% 29.79 in 10.0 mi SW 6.9 mph - N/A   Mostly Cloudy
1:53 PM 69.1 °F 43.0 °F 39% 29.76 in 10.0 mi NNW 8.1 mph - N/A   Mostly Cloudy
2:53 PM 69.1 °F 42.1 °F 38% 29.74 in 10.0 mi NW 6.9 mph - N/A   Mostly Cloudy
3:53 PM 71.1 °F 42.1 °F 35% 29.71 in 10.0 mi WNW 9.2 mph - N/A   Mostly Cloudy
4:53 PM 69.1 °F 43.0 °F 39% 29.68 in 10.0 mi NW 10.4 mph - N/A   Mostly Cloudy
5:53 PM 68.0 °F 42.1 °F 39% 29.66 in 10.0 mi NNW 11.5 mph - N/A   Mostly Cloudy
6:53 PM 66.9 °F 42.1 °F 40% 29.65 in 10.0 mi North 10.4 mph - N/A   Overcast
7:53 PM 66.9 °F 41.0 °F 39% 29.65 in 10.0 mi NNE 13.8 mph - N/A   Overcast
8:53 PM 66.0 °F 42.1 °F 42% 29.65 in 10.0 mi NNE 13.8 mph - N/A   Overcast
9:53 PM 64.9 °F 44.1 °F 47% 29.66 in 10.0 mi NNE 13.8 mph - N/A   Overcast
10:53 PM 59.0 °F 45.0 °F 60% 29.69 in 10.0 mi WSW 8.1 mph - N/A   Overcast
11:53 PM 59.0 °F 44.1 °F 58% 29.70 in 10.0 mi West 4.6 mph - N/A   Overcast