764  
CDUS46 KSEW 220931  
CLISEA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SEATTLE  
131 AM PST SAT FEB 22 2025  
   
...............................  
 
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR FEBRUARY 21 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 50 325 PM 67 1973 51 -1 51  
MINIMUM 39 204 AM 25 1957 38 1 45  
AVERAGE 45 44 1 48  
 
PRECIPITATION (IN)  
YESTERDAY 0.28 0.97 1949 0.12 0.16 0.38  
MONTH TO DATE 1.54 2.88 -1.34 2.03  
SINCE OCT 1 16.86 24.60 -7.74 25.70  
SINCE JAN 1 3.46 8.66 -5.20 8.55  
 
SNOWFALL (IN)  
YESTERDAY 0.0 T 1993 0.0  
2022  
2023  
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 20 21 -1 17  
MONTH TO DATE 565 446 119 417  
SINCE DEC 1 2003 1844 159 1732  
SINCE JUL 1 3044 2905 139 2735  
 
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 2 RESULTANT WIND DIRECTION SE (150)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION SE (140)  
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION SE (150)  
AVERAGE WIND SPEED 5.1  
 
SKY COVER  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 800 PM  
LOWEST 68 100 PM  
AVERAGE 84  
   
......................................................  
 
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 51 64 1966  
MINIMUM TEMPERATURE (F) 38 26 2018  
 
SUNRISE AND SUNSET  
FEBRUARY 22 2025......SUNRISE 702 AM PST SUNSET 544 PM PST  
FEBRUARY 23 2025......SUNRISE 700 AM PST SUNSET 546 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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