533  
CDUS46 KSEW 180116  
CLISEA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SEATTLE  
616 PM PDT MON JUN 17 2024  
   
...............................
 
 
   
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR JUNE 17 2024
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 61 210 PM 91 1969 71 -10 59  
MINIMUM 50 700 AM 43 1954 53 -3 51  
AVERAGE 56 62 -6 55  
 
PRECIPITATION (IN)  
TODAY 0.04 0.51 1964 0.05 -0.01 0.07  
MONTH TO DATE 1.16 0.91 0.25 0.62  
SINCE OCT 1 33.25 35.62 -2.37 28.31  
SINCE JAN 1 16.10 19.68 -3.58 13.42  
 
SNOWFALL (IN)  
TODAY MM MM MM 0.0  
MONTH TO DATE 0.0 0.0  
SINCE OCT 1 0.3 8.1  
SINCE JUL 1 0.3 8.1  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
TODAY 9 4 5 10  
MONTH TO DATE 108 79 29 73  
SINCE JUN 1 108 79 29 73  
SINCE JUL 1 4259 4337 -78 4394  
 
COOLING  
TODAY 0 1 -1 0  
MONTH TO DATE 1 17 -16 17  
SINCE JUN 1 1 17 -16 17  
SINCE JAN 1 8 27 -19 52    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION S (200)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION W (290)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION W (280)  
AVERAGE WIND SPEED 6.5  
 
SKY COVER  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 86 300 PM  
LOWEST 58 100 PM  
AVERAGE 72  
   
......................................................
 
 
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 71 94 1982  
MINIMUM TEMPERATURE (F) 53 43 1954  
 
SUNRISE AND SUNSET  
JUNE 17 2024..........SUNRISE 512 AM PDT SUNSET 909 PM PDT  
JUNE 18 2024..........SUNRISE 512 AM PDT SUNSET 909 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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