187  
CDUS46 KSEW 050826  
CLISEA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SEATTLE  
126 AM PDT TUE AUG 05 2025  
   
...............................  
 
   
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR AUGUST 4 2025  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1945 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 71 341 PM 95 1993 79 -8 85  
MINIMUM 58 651 AM 44 1950 58 0 57  
AVERAGE 65 68 -3 71  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.61 1962 0.02 -0.02 0.00  
MONTH TO DATE 0.00 0.09 -0.09 0.00  
SINCE OCT 1 27.77 36.85 -9.08 33.65  
SINCE JAN 1 14.37 20.91 -6.54 16.50  
 
SNOWFALL (IN)  
YESTERDAY 0.0 MM MM 0.0  
MONTH TO DATE 0.0 0.0  
SINCE OCT 1 2.3 0.3  
SINCE JUL 1 0.0 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 1 0 1 0  
SINCE JUN 1 116 149 -33 139  
SINCE JUL 1 22 31 -9 7  
 
COOLING  
YESTERDAY 0 4 -4 6  
MONTH TO DATE 2 16 -14 31  
SINCE JUN 1 163 141 22 214  
SINCE JAN 1 166 151 15 221    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION SW (210)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION S (200)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION SW (210)  
AVERAGE WIND SPEED 7.8  
 
SKY COVER  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 81 100 AM  
LOWEST 55 200 PM  
AVERAGE 68  
   
......................................................  
 
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 79 93 2012  
MINIMUM TEMPERATURE (F) 58 46 1947  
 
SUNRISE AND SUNSET  
AUGUST 5 2025........SUNRISE 553 AM PDT SUNSET 837 PM PDT  
AUGUST 6 2025........SUNRISE 554 AM PDT SUNSET 835 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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