622  
CDUS46 KSEW 310836  
CLISEA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SEATTLE  
136 AM PDT WED JUL 31 2024  
   
...............................
 
 
   
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR JULY 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 76 307 PM 96 2009 79 -3 77  
MINIMUM 61 1159 PM 48 1951 58 3 58  
AVERAGE 69 68 1 68  
 
PRECIPITATION (IN)  
YESTERDAY 0.03 0.39 1955 0.02 0.01 0.00  
MONTH TO DATE 0.16 0.58 -0.42 0.09  
SINCE OCT 1 33.44 36.74 -3.30 29.00  
SINCE JAN 1 16.29 20.80 -4.51 14.11  
 
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 1 -1 0  
MONTH TO DATE 7 36 -29 2  
SINCE JUN 1 139 154 -15 114  
SINCE JUL 1 7 36 -29 2  
 
COOLING  
YESTERDAY 4 4 0 3  
MONTH TO DATE 159 92 67 116  
SINCE JUN 1 178 121 57 145  
SINCE JAN 1 185 131 54 180    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 9 RESULTANT WIND DIRECTION SW (210)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION SW (210)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION SW (220)  
AVERAGE WIND SPEED 9.4  
 
SKY COVER  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 600 AM  
LOWEST 57 300 PM  
AVERAGE 75  
   
......................................................
 
 
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 79 95 2022  
MINIMUM TEMPERATURE (F) 58 47 1954  
 
SUNRISE AND SUNSET  
JULY 31 2024..........SUNRISE 547 AM PDT SUNSET 843 PM PDT  
AUGUST 1 2024........SUNRISE 548 AM PDT SUNSET 842 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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