998  
CDUS46 KSEW 150124  
CLISEA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SEATTLE  
624 PM PDT WED AUG 14 2024  
   
...............................
 
 
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR AUGUST 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 77 458 PM 95 2010 78 -1 94  
MINIMUM 60 622 AM 44 1955 58 2 71  
AVERAGE 69 68 1 83  
 
PRECIPITATION (IN)  
TODAY 0.00 1.60 1968 0.03 -0.03 0.00  
MONTH TO DATE 0.00 0.34 -0.34 0.04  
SINCE OCT 1 33.44 37.10 -3.66 29.04  
SINCE JAN 1 16.29 21.16 -4.87 14.15  
 
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 0 1 -1 0  
MONTH TO DATE 2 7 -5 0  
SINCE JUN 1 141 156 -15 114  
SINCE JUL 1 9 38 -29 2  
 
COOLING  
TODAY 4 3 1 18  
MONTH TO DATE 57 55 2 90  
SINCE JUN 1 240 180 60 238  
SINCE JAN 1 247 190 57 273    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION W (260)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION NW (320)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION W (280)  
AVERAGE WIND SPEED 4.9  
 
SKY COVER  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 78 700 AM  
LOWEST 43 300 PM  
AVERAGE 61  
   
......................................................
 
 
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 78 96 2010  
MINIMUM TEMPERATURE (F) 57 47 1955  
 
SUNRISE AND SUNSET  
AUGUST 14 2024........SUNRISE 605 AM PDT SUNSET 822 PM PDT  
AUGUST 15 2024........SUNRISE 606 AM PDT SUNSET 820 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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