865  
CDUS46 KSEW 270829  
CLISEA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SEATTLE  
129 AM PDT SAT JUL 27 2024  
   
...............................  
 
   
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR JULY 26 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 78 346 PM 94 2022 79 -1 76  
MINIMUM 52 450 AM 49 1952 58 -6 58  
AVERAGE 65 68 -3 67  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.73 1978 0.01 -0.01 0.00  
MONTH TO DATE T 0.51 -0.51 0.09  
SINCE OCT 1 33.28 36.67 -3.39 29.00  
SINCE JAN 1 16.13 20.73 -4.60 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 4 32 -28 2  
SINCE JUN 1 136 150 -14 114  
SINCE JUL 1 4 32 -28 2  
 
COOLING  
YESTERDAY 0 4 -4 2  
MONTH TO DATE 152 76 76 105  
SINCE JUN 1 171 105 66 134  
SINCE JAN 1 178 115 63 169    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION N (350)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION N (350)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION N (10)  
AVERAGE WIND SPEED 8.4  
 
SKY COVER  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 80 500 AM  
LOWEST 32 500 PM  
AVERAGE 56  
   
......................................................  
 
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 79 95 1958  
1998  
MINIMUM TEMPERATURE (F) 58 46 1956  
 
SUNRISE AND SUNSET  
JULY 27 2024..........SUNRISE 542 AM PDT SUNSET 849 PM PDT  
JULY 28 2024..........SUNRISE 543 AM PDT SUNSET 848 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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