502  
CDUS46 KSEW 250120  
CLISEA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SEATTLE  
620 PM PDT MON AUG 24 2026  
   
...............................  
 
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR AUGUST 24 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 81 345 PM 90 2025 77 4 90  
MINIMUM 57 547 AM 45 1951 57 0 63  
AVERAGE 69 67 2 77  
 
PRECIPITATION (IN)  
TODAY 0.00 1.00 2004 0.04 -0.04 0.00  
MONTH TO DATE T 0.69 -0.69 1.14  
SINCE OCT 1 36.35 37.45 -1.10 28.91  
SINCE JAN 1 19.57 21.51 -1.94 15.51  
 
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 0.0 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 0 1 -1 0  
MONTH TO DATE 1 17 -16 2  
SINCE JUN 1 116 166 -50 117  
SINCE JUL 1 21 48 -27 23  
 
COOLING  
TODAY 4 2 2 12  
MONTH TO DATE 85 84 1 98  
SINCE JUN 1 243 209 34 259  
SINCE JAN 1 253 219 34 262    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 10 RESULTANT WIND DIRECTION N (0)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION N (360)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION N (360)  
AVERAGE WIND SPEED 10.7  
 
SKY COVER  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 600 AM  
LOWEST 44 300 PM  
AVERAGE 69  
   
......................................................  
 
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 77 91 2016  
MINIMUM TEMPERATURE (F) 57 45 1954  
 
SUNRISE AND SUNSET  
AUGUST 24 2026........SUNRISE 618 AM PDT SUNSET 804 PM PDT  
AUGUST 25 2026........SUNRISE 619 AM PDT SUNSET 803 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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