984  
CDUS46 KSEW 050827  
CLISEA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SEATTLE  
127 AM PDT THU SEP 05 2024  
   
...............................
 
 
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 4 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 78 300 PM 88 2017 75 3 66  
MINIMUM 56 320 AM 42 1952 56 0 53  
AVERAGE 67 65 2 60  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.97 1945 0.05 -0.05 0.07  
MONTH TO DATE T 0.17 -0.17 0.13  
SINCE OCT 1 35.10 37.90 -2.80 29.40  
SINCE JAN 1 17.95 21.96 -4.01 14.51  
 
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 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 2 -2 5  
MONTH TO DATE 0 8 -8 7  
SINCE SEP 1 0 8 -8 7  
SINCE JUL 1 36 63 -27 19  
 
COOLING  
YESTERDAY 2 2 0 0  
MONTH TO DATE 10 8 2 12  
SINCE SEP 1 10 8 2 12  
SINCE JAN 1 283 241 42 364    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION N (0)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION N (10)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION NE (40)  
AVERAGE WIND SPEED 8.3  
 
SKY COVER  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 400 AM  
LOWEST 52 300 PM  
AVERAGE 76  
   
......................................................
 
 
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 75 88 1973  
MINIMUM TEMPERATURE (F) 55 42 1947  
 
SUNRISE AND SUNSET  
SEPTEMBER 5 2024.....SUNRISE 634 AM PDT SUNSET 740 PM PDT  
SEPTEMBER 6 2024.....SUNRISE 636 AM PDT SUNSET 738 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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