462  
CDUS46 KSEW 150217  
CLISEA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SEATTLE  
617 PM PST SAT DEC 14 2024  
   
...............................  
 
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR DECEMBER 14 2024...  
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1945 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 50 1111 AM 59 2002 47 3 48  
MINIMUM 44 322 AM 18 1945 37 7 43  
AVERAGE 47 42 5 46  
 
PRECIPITATION (IN)  
TODAY 0.04 1.67 1979 0.18 -0.14 0.14  
MONTH TO DATE 1.18 2.61 -1.43 6.70  
SINCE OCT 1 9.08 12.83 -3.75 15.37  
SINCE JAN 1 27.86 36.23 -8.37 33.19  
 
SNOWFALL (IN)  
TODAY 0.0 0.7 2008 0.0  
MONTH TO DATE 0.0 0.0  
SINCE OCT 1 0.0 0.0  
SINCE JUL 1 0.0 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 18 23 -5 19  
MONTH TO DATE 331 315 16 272  
SINCE DEC 1 331 315 16 272  
SINCE JUL 1 1372 1376 -4 1275  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 315 263 52 378    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 16 RESULTANT WIND DIRECTION S (180)  
HIGHEST WIND SPEED 36 HIGHEST WIND DIRECTION S (190)  
HIGHEST GUST SPEED 47 HIGHEST GUST DIRECTION S (190)  
AVERAGE WIND SPEED 18.3  
 
SKY COVER  
AVERAGE SKY COVER 0.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 82 400 PM  
LOWEST 58 600 AM  
AVERAGE 70  
   
......................................................  
 
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 47 63 1980  
MINIMUM TEMPERATURE (F) 37 19 2008  
 
SUNRISE AND SUNSET  
DECEMBER 14 2024......SUNRISE 750 AM PST SUNSET 419 PM PST  
DECEMBER 15 2024......SUNRISE 751 AM PST SUNSET 419 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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