885  
CDUS46 KSEW 280116  
CLISEA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SEATTLE  
616 PM PDT TUE AUG 27 2024  
   
...............................
 
 
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR AUGUST 27 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 68 225 PM 88 1986 76 -8 84  
1994  
2009  
MINIMUM 54 451 AM 44 1952 56 -2 59  
AVERAGE 61 66 -5 72  
 
PRECIPITATION (IN)  
TODAY 0.08 0.76 1951 0.04 0.04 0.00  
MONTH TO DATE 1.66 0.81 0.85 0.12  
SINCE OCT 1 35.10 37.57 -2.47 29.12  
SINCE JAN 1 17.95 21.63 -3.68 14.23  
 
SNOWFALL (IN)  
TODAY 0.0 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 4 1 3 0  
MONTH TO DATE 25 20 5 3  
SINCE JUN 1 164 169 -5 117  
SINCE JUL 1 32 51 -19 5  
 
COOLING  
TODAY 0 2 -2 7  
MONTH TO DATE 69 90 -21 167  
SINCE JUN 1 252 215 37 315  
SINCE JAN 1 259 225 34 350    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION E (110)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION NE (60)  
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION NE (40)  
AVERAGE WIND SPEED 8.7  
 
SKY COVER  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
THUNDERSTORM  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 1200 AM  
LOWEST 48 100 PM  
AVERAGE 73  
   
......................................................
 
 
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 76 95 1967  
MINIMUM TEMPERATURE (F) 56 46 1952  
 
SUNRISE AND SUNSET  
AUGUST 27 2024........SUNRISE 622 AM PDT SUNSET 758 PM PDT  
AUGUST 28 2024........SUNRISE 624 AM PDT SUNSET 756 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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