950  
CDUS46 KSEW 080927  
CLISEA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SEATTLE  
127 AM PST SUN DEC 08 2024  
   
...............................
 
 
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR DECEMBER 7 2024...  
 
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)  
YESTERDAY  
MAXIMUM 51 826 AM 58 2014 48 3 47  
MINIMUM 44 1157 PM 18 1972 37 7 37  
AVERAGE 48 42 6 42  
 
PRECIPITATION (IN)  
YESTERDAY 0.55 1.08 2015 0.19 0.36 0.40  
MONTH TO DATE 0.55 1.33 -0.78 5.78  
SINCE OCT 1 8.45 11.55 -3.10 14.45  
SINCE JAN 1 27.23 34.95 -7.72 32.27  
 
SNOWFALL (IN)  
YESTERDAY 0.0 2.0 1966 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  
YESTERDAY 17 22 -5 23  
MONTH TO DATE 177 154 23 120  
SINCE DEC 1 177 154 23 120  
SINCE JUL 1 1218 1215 3 1123  
 
COOLING  
YESTERDAY 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 12 RESULTANT WIND DIRECTION S (200)  
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION SW (210)  
HIGHEST GUST SPEED 36 HIGHEST GUST DIRECTION S (200)  
AVERAGE WIND SPEED 12.8  
 
SKY COVER  
AVERAGE SKY COVER 0.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 500 AM  
LOWEST 83 300 PM  
AVERAGE 90  
   
......................................................
 
 
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 48 60 2015  
MINIMUM TEMPERATURE (F) 37 13 1972  
 
SUNRISE AND SUNSET  
DECEMBER 8 2024......SUNRISE 744 AM PST SUNSET 418 PM PST  
DECEMBER 9 2024......SUNRISE 745 AM PST SUNSET 418 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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