531  
CDUS46 KSEW 080826  
CLISEA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SEATTLE  
126 AM PDT THU AUG 08 2024  
   
...............................
 
 
   
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR AUGUST 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 80 503 PM 95 1972 79 1 77  
MINIMUM 54 415 AM 48 1948 58 -4 61  
AVERAGE 67 68 -1 69  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.95 1976 0.02 -0.02 0.02  
MONTH TO DATE 0.00 0.15 -0.15 0.04  
SINCE OCT 1 33.44 36.91 -3.47 29.04  
SINCE JAN 1 16.29 20.97 -4.68 14.15  
 
SNOWFALL (IN)  
YESTERDAY 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 MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 2 0 2 0  
SINCE JUN 1 141 149 -8 114  
SINCE JUL 1 9 31 -22 2  
 
COOLING  
YESTERDAY 2 4 -2 4  
MONTH TO DATE 35 28 7 38  
SINCE JUN 1 218 153 65 186  
SINCE JAN 1 225 163 62 221    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION N (340)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION N (10)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION N (10)  
AVERAGE WIND SPEED 6.4  
 
SKY COVER  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 89 300 AM  
LOWEST 42 500 PM  
AVERAGE 66  
   
......................................................
 
 
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 79 98 1960  
MINIMUM TEMPERATURE (F) 58 47 1974  
 
SUNRISE AND SUNSET  
AUGUST 8 2024........SUNRISE 557 AM PDT SUNSET 832 PM PDT  
AUGUST 9 2024........SUNRISE 558 AM PDT SUNSET 830 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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