247  
CDUS46 KSEW 240827  
CLISEA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SEATTLE  
127 AM PDT SAT AUG 24 2024  
   
...............................  
 
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR AUGUST 23 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 59 143 AM 91 1988 77 -18 73  
MINIMUM 55 1142 PM 46 1955 57 -2 57  
AVERAGE 57 67 -10 65  
 
PRECIPITATION (IN)  
YESTERDAY 0.44 1.49 1977 0.03 0.41 0.04  
MONTH TO DATE 1.18 0.65 0.53 0.10  
SINCE OCT 1 34.62 37.41 -2.79 29.10  
SINCE JAN 1 17.47 21.47 -4.00 14.21  
 
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 8 1 7 0  
MONTH TO DATE 13 16 -3 3  
SINCE JUN 1 152 165 -13 117  
SINCE JUL 1 20 47 -27 5  
 
COOLING  
YESTERDAY 0 3 -3 0  
MONTH TO DATE 69 82 -13 140  
SINCE JUN 1 252 207 45 288  
SINCE JAN 1 259 217 42 323    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION S (190)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION S (180)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION S (180)  
AVERAGE WIND SPEED 8.1  
 
SKY COVER  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 1200 AM  
LOWEST 87 400 PM  
AVERAGE 94  
   
......................................................  
 
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 77 88 1982  
MINIMUM TEMPERATURE (F) 57 45 1951  
 
SUNRISE AND SUNSET  
AUGUST 24 2024........SUNRISE 618 AM PDT SUNSET 803 PM PDT  
AUGUST 25 2024........SUNRISE 620 AM PDT SUNSET 802 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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