043  
CDUS46 KSEW 210217  
CLISEA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SEATTLE  
617 PM PST THU FEB 20 2025  
   
...............................  
 
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR FEBRUARY 20 2025...  
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 49 425 PM 62 1977 51 -2 54  
MINIMUM 42 749 AM 25 1955 38 4 42  
AVERAGE 46 44 2 48  
 
PRECIPITATION (IN)  
TODAY 0.03 0.74 1948 0.13 -0.10 0.16  
1984  
MONTH TO DATE 1.26 2.76 -1.50 1.65  
SINCE OCT 1 16.58 24.48 -7.90 25.32  
SINCE JAN 1 3.18 8.54 -5.36 8.17  
 
SNOWFALL (IN)  
TODAY 0.0 1.4 1993 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  
TODAY 19 21 -2 17  
MONTH TO DATE 545 425 120 400  
SINCE DEC 1 1983 1823 160 1715  
SINCE JUL 1 3024 2884 140 2718  
 
COOLING  
TODAY 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 9 RESULTANT WIND DIRECTION S (200)  
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION S (200)  
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION S (200)  
AVERAGE WIND SPEED 9.5  
 
SKY COVER  
AVERAGE SKY COVER 0.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 400 AM  
LOWEST 71 100 PM  
AVERAGE 84  
   
......................................................  
 
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 51 67 1973  
MINIMUM TEMPERATURE (F) 38 25 1957  
 
SUNRISE AND SUNSET  
FEBRUARY 20 2025......SUNRISE 705 AM PST SUNSET 541 PM PST  
FEBRUARY 21 2025......SUNRISE 703 AM PST SUNSET 543 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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