113  
CDUS46 KSEW 070118  
CLISEA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SEATTLE  
618 PM PDT FRI SEP 06 2024  
   
...............................
 
 
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 6 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 88 328 PM 90 2014 74 14 74  
MINIMUM 61 551 AM 44 1947 55 6 53  
AVERAGE 75 65 10 64  
 
PRECIPITATION (IN)  
TODAY 0.00 0.93 2009 0.05 -0.05 0.00  
MONTH TO DATE T 0.26 -0.26 0.13  
SINCE OCT 1 35.10 37.99 -2.89 29.40  
SINCE JAN 1 17.95 22.05 -4.10 14.51  
 
SNOWFALL (IN)  
TODAY MM MM MM 0.0  
MONTH TO DATE 0.0 0.0  
SINCE OCT 1 0.3 8.1  
SINCE JUL 1 0.0 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 0 2 -2 1  
MONTH TO DATE 0 12 -12 11  
SINCE SEP 1 0 12 -12 11  
SINCE JUL 1 36 67 -31 23  
 
COOLING  
TODAY 10 2 8 0  
MONTH TO DATE 30 12 18 12  
SINCE SEP 1 30 12 18 12  
SINCE JAN 1 303 245 58 364    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION N (350)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION N (350)  
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION N (350)  
AVERAGE WIND SPEED 5.5  
 
SKY COVER  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 600 AM  
LOWEST 37 200 PM  
AVERAGE 64  
   
......................................................
 
 
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 74 94 1981  
MINIMUM TEMPERATURE (F) 55 45 1960  
1992  
 
SUNRISE AND SUNSET  
SEPTEMBER 6 2024.....SUNRISE 636 AM PDT SUNSET 738 PM PDT  
SEPTEMBER 7 2024.....SUNRISE 637 AM PDT SUNSET 736 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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