477  
CDUS46 KSEW 310826  
CLISEA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SEATTLE  
126 AM PDT SAT AUG 31 2024  
   
...............................  
 
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR AUGUST 30 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 83 435 PM 90 2022 76 7 74  
MINIMUM 58 619 AM 45 1950 56 2 59  
AVERAGE 71 66 5 67  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.40 2015 0.04 -0.04 0.01  
MONTH TO DATE 1.66 0.93 0.73 0.25  
SINCE OCT 1 35.10 37.69 -2.59 29.25  
SINCE JAN 1 17.95 21.75 -3.80 14.36  
 
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 1 -1 0  
MONTH TO DATE 29 23 6 9  
SINCE JUN 1 168 172 -4 123  
SINCE JUL 1 36 54 -18 11  
 
COOLING  
YESTERDAY 6 2 4 2  
MONTH TO DATE 76 96 -20 169  
SINCE JUN 1 259 221 38 317  
SINCE JAN 1 266 231 35 352    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION N (0)  
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION N (350)  
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION N (20)  
AVERAGE WIND SPEED 7.4  
 
SKY COVER  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87 400 AM  
LOWEST 40 500 PM  
AVERAGE 64  
   
......................................................  
 
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 76 92 1987  
MINIMUM TEMPERATURE (F) 56 46 1950  
 
SUNRISE AND SUNSET  
AUGUST 31 2024........SUNRISE 628 AM PDT SUNSET 750 PM PDT  
SEPTEMBER 1 2024.....SUNRISE 629 AM PDT SUNSET 748 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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