875  
CDUS46 KSEW 190122  
CLISEA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SEATTLE  
622 PM PDT SAT JUL 18 2026  
   
...............................
 
 
   
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR JULY 18 2026
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1945 TO 2026  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 75 419 PM 93 1995 78 -3 70  
MINIMUM 56 543 AM 47 1952 57 -1 56  
AVERAGE 66 68 -2 63  
 
PRECIPITATION (IN)  
TODAY 0.00 0.29 2007 0.02 -0.02 0.00  
MONTH TO DATE 0.36 0.39 -0.03 T  
SINCE OCT 1 36.29 36.55 -0.26 27.76  
SINCE JAN 1 19.51 20.61 -1.10 14.36  
 
SNOWFALL (IN)  
TODAY 0.0 MM MM 0.0  
MONTH TO DATE 0.0 0.0  
SINCE OCT 1 3.0 2.3  
SINCE JUL 1 0.0 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 0 1 -1 2  
MONTH TO DATE 20 24 -4 7  
SINCE JUN 1 115 142 -27 101  
SINCE JUL 1 20 24 -4 7  
 
COOLING  
TODAY 1 3 -2 0  
MONTH TO DATE 27 44 -17 87  
SINCE JUN 1 98 73 25 129  
SINCE JAN 1 108 83 25 132    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION SW (240)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION W (290)  
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION SW (240)  
AVERAGE WIND SPEED 6.6  
 
SKY COVER  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 400 AM  
LOWEST 43 400 PM  
AVERAGE 67  
   
......................................................
 
 
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 78 95 1988  
2015  
MINIMUM TEMPERATURE (F) 57 48 1962  
 
SUNRISE AND SUNSET  
JULY 18 2026..........SUNRISE 531 AM PDT SUNSET 859 PM PDT  
JULY 19 2026..........SUNRISE 532 AM PDT SUNSET 858 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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