195  
CDUS46 KSEW 290826  
CLISEA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SEATTLE  
126 AM PDT THU AUG 29 2024  
   
...............................
 
 
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR AUGUST 28 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 70 335 PM 95 1967 76 -6 67  
MINIMUM 50 552 AM 46 1952 56 -6 61  
AVERAGE 60 66 -6 64  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.47 1975 0.04 -0.04 0.00  
MONTH TO DATE 1.66 0.85 0.81 0.12  
SINCE OCT 1 35.10 37.61 -2.51 29.12  
SINCE JAN 1 17.95 21.67 -3.72 14.23  
 
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 5 1 4 1  
MONTH TO DATE 29 21 8 4  
SINCE JUN 1 168 170 -2 118  
SINCE JUL 1 36 52 -16 6  
 
COOLING  
YESTERDAY 0 2 -2 0  
MONTH TO DATE 69 92 -23 167  
SINCE JUN 1 252 217 35 315  
SINCE JAN 1 259 227 32 350    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION N (20)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION N (340)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION NW (330)  
AVERAGE WIND SPEED 8.2  
 
SKY COVER  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 89 400 AM  
LOWEST 43 500 PM  
AVERAGE 66  
   
......................................................
 
 
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 76 91 1974  
MINIMUM TEMPERATURE (F) 56 44 1951  
 
SUNRISE AND SUNSET  
AUGUST 29 2024........SUNRISE 625 AM PDT SUNSET 754 PM PDT  
AUGUST 30 2024........SUNRISE 626 AM PDT SUNSET 752 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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