032  
CDUS46 KSEW 090117  
CLISEA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SEATTLE  
617 PM PDT TUE APR 08 2025  
   
...............................  
 
   
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR APRIL 8 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 56 117 PM 76 2016 58 -2 53  
MINIMUM 45 355 AM 29 1952 42 3 41  
AVERAGE 51 50 1 47  
 
PRECIPITATION (IN)  
TODAY 0.37 0.83 1993 0.11 0.26 0.20  
MONTH TO DATE 1.48 0.95 0.53 0.36  
SINCE OCT 1 25.44 30.60 -5.16 30.23  
SINCE JAN 1 12.04 14.66 -2.62 13.08  
 
SNOWFALL (IN)  
TODAY 0.0 T 1972 0.0  
1991  
MONTH TO DATE 0.0 0.0  
SINCE OCT 1 2.3 0.3  
SINCE JUL 1 2.3 0.3  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 14 15 -1 18  
MONTH TO DATE 113 125 -12 133  
SINCE MAR 1 659 682 -23 682  
SINCE JUL 1 3816 3729 87 3593  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE MAR 1 0 0 0 0  
SINCE JAN 1 0 0 0 0    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 9 RESULTANT WIND DIRECTION S (180)  
HIGHEST WIND SPEED 30 HIGHEST WIND DIRECTION S (180)  
HIGHEST GUST SPEED 41 HIGHEST GUST DIRECTION S (170)  
AVERAGE WIND SPEED 10.6  
 
SKY COVER  
AVERAGE SKY COVER 0.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
RAIN  
LIGHT RAIN  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 200 AM  
LOWEST 68 400 PM  
AVERAGE 81  
   
......................................................  
 
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 58 73 1959  
MINIMUM TEMPERATURE (F) 42 33 1945  
 
SUNRISE AND SUNSET  
APRIL 8 2025.........SUNRISE 633 AM PDT SUNSET 749 PM PDT  
APRIL 9 2025.........SUNRISE 631 AM PDT SUNSET 751 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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