087  
CDUS46 KSEW 130116  
CLISEA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SEATTLE  
616 PM PDT TUE MAY 12 2026  
   
...............................
 
 
   
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR MAY 12 2026
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1945 TO 2026  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 82R 252 PM 82 2023 66 16 67  
MINIMUM 52 526 AM 38 1964 48 4 45  
1985  
2011  
AVERAGE 67 57 10 56  
 
PRECIPITATION (IN)  
TODAY T 0.71 1996 0.06 -0.06 T  
MONTH TO DATE T 0.80 -0.80 0.02  
SINCE OCT 1 33.45 33.63 -0.18 26.53  
SINCE JAN 1 16.67 17.69 -1.02 13.13  
 
SNOWFALL (IN)  
TODAY 0.0 MM MM 0.0  
MONTH TO DATE 0.0 0.0  
SINCE OCT 1 3.0 2.3  
SINCE JUL 1 3.0 2.3  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 0 8 -8 9  
MONTH TO DATE 58 114 -56 104  
SINCE MAR 1 1014 1083 -69 1031  
SINCE JUL 1 3764 4130 -366 4188  
 
COOLING  
TODAY 2 0 2 0  
MONTH TO DATE 6 0 6 0  
SINCE MAR 1 6 1 5 0  
SINCE JAN 1 6 1 5 0    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION NW (310)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION SW (230)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION SW (230)  
AVERAGE WIND SPEED 7.1  
 
SKY COVER  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 83 500 AM  
LOWEST 26 300 PM  
AVERAGE 55  
   
......................................................
 
 
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 66 86 2023  
MINIMUM TEMPERATURE (F) 48 37 1956  
 
SUNRISE AND SUNSET  
MAY 12 2026...........SUNRISE 536 AM PDT SUNSET 836 PM PDT  
MAY 13 2026...........SUNRISE 535 AM PDT SUNSET 837 PM PDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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