925  
CDUS46 KSEW 130122  
CLISEA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SEATTLE  
622 PM PDT WED AUG 12 2026  
   
...............................  
 
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR AUGUST 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 79 314 PM 96 1977 78 1 92  
MINIMUM 58 513 AM 49 1949 58 0 64  
1950  
1953  
AVERAGE 69 68 1 78  
 
PRECIPITATION (IN)  
TODAY 0.00 0.56 1965 0.03 -0.03 0.00  
MONTH TO DATE T 0.29 -0.29 0.16  
SINCE OCT 1 36.35 37.05 -0.70 27.93  
SINCE JAN 1 19.57 21.11 -1.54 14.53  
 
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 5 -4 2  
SINCE JUN 1 116 154 -38 117  
SINCE JUL 1 21 36 -15 23  
 
COOLING  
TODAY 4 4 0 13  
MONTH TO DATE 43 48 -5 48  
SINCE JUN 1 201 173 28 209  
SINCE JAN 1 211 183 28 212    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION W (260)  
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION W (250)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION W (280)  
AVERAGE WIND SPEED 3.8  
 
SKY COVER  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 500 AM  
LOWEST 46 100 PM  
AVERAGE 70  
   
......................................................  
 
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 78 92 2002  
MINIMUM TEMPERATURE (F) 58 44 1955  
 
SUNRISE AND SUNSET  
AUGUST 12 2026........SUNRISE 602 AM PDT SUNSET 826 PM PDT  
AUGUST 13 2026........SUNRISE 603 AM PDT SUNSET 824 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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