459  
CDUS46 KSEW 240928  
CLISEA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SEATTLE  
128 AM PST MON FEB 24 2025  
   
...............................  
 
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR FEBRUARY 23 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 53 537 PM 61 1958 51 2 52  
1983  
MINIMUM 46 630 AM 23 2022 38 8 35  
AVERAGE 50 44 6 44  
 
PRECIPITATION (IN)  
YESTERDAY 0.42 1.16 1986 0.12 0.30 0.00  
MONTH TO DATE 2.76 3.12 -0.36 2.03  
SINCE OCT 1 18.08 24.84 -6.76 25.70  
SINCE JAN 1 4.68 8.90 -4.22 8.55  
 
SNOWFALL (IN)  
YESTERDAY 0.0 3.0 1956 0.0  
MONTH TO DATE 2.3 T  
SINCE OCT 1 2.3 T  
SINCE JUL 1 2.3 T  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 15 20 -5 21  
MONTH TO DATE 595 487 108 454  
SINCE DEC 1 2033 1885 148 1769  
SINCE JUL 1 3074 2946 128 2772  
 
COOLING  
YESTERDAY 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 7 RESULTANT WIND DIRECTION S (190)  
HIGHEST WIND SPEED 26 HIGHEST WIND DIRECTION SW (220)  
HIGHEST GUST SPEED 43 HIGHEST GUST DIRECTION SW (220)  
AVERAGE WIND SPEED 9.6  
 
SKY COVER  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 600 AM  
LOWEST 80 1000 PM  
AVERAGE 90  
   
......................................................  
 
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 51 62 1949  
MINIMUM TEMPERATURE (F) 38 22 2023  
 
SUNRISE AND SUNSET  
FEBRUARY 24 2025......SUNRISE 658 AM PST SUNSET 547 PM PST  
FEBRUARY 25 2025......SUNRISE 656 AM PST SUNSET 549 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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