244  
CDUS46 KSEW 210217  
CLISEA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SEATTLE  
617 PM PST TUE JAN 20 2026  
   
...............................
 
 
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR JANUARY 20 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 50 MM 64 1981 48 2 43  
MINIMUM 31 MM 16 1954 38 -7 28  
1962  
AVERAGE 41 43 -2 36  
 
PRECIPITATION (IN)  
TODAY 0.00 1.66 1972 0.19 -0.19 0.00  
MONTH TO DATE 3.31 3.83 -0.52 1.04  
SINCE OCT 1 20.09 19.77 0.32 14.44  
SINCE JAN 1 3.31 3.83 -0.52 1.04  
 
SNOWFALL (IN)  
TODAY 0.0 1.5 1951 0.0  
MONTH TO DATE 0.0 0.0  
SINCE OCT 1 0.0 0.0  
SINCE JUL 1 0.0 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 24 22 2 29  
MONTH TO DATE 407 448 -41 488  
SINCE DEC 1 1013 1159 -146 1134  
SINCE JUL 1 1927 2220 -293 2175  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 0 0 0 0    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION N (10)  
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION N (360)  
HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM  
AVERAGE WIND SPEED 5.5  
 
SKY COVER  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 100 AM  
LOWEST 52 300 PM  
AVERAGE 76  
   
......................................................
 
 
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 49 62 1981  
MINIMUM TEMPERATURE (F) 38 13 1962  
 
SUNRISE AND SUNSET  
JANUARY 20 2026.......SUNRISE 748 AM PST SUNSET 453 PM PST  
JANUARY 21 2026.......SUNRISE 747 AM PST SUNSET 454 PM PST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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