581  
CDUS46 KSEW 120117  
CLISEA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SEATTLE  
617 PM PDT SUN JUN 11 2023  
   
...............................
 
 
   
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR JUNE 11 2023
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1945 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 71 452 PM 87 2019 70 1 69  
MINIMUM 54 254 AM 40 1952 52 2 54  
AVERAGE 63 61 2 62  
 
PRECIPITATION (IN)  
TODAY 0.00 1.16 2001 0.05 -0.05 0.01  
MONTH TO DATE 0.42 0.61 -0.19 2.31  
SINCE OCT 1 28.11 35.32 -7.21 44.64  
SINCE JAN 1 13.22 19.38 -6.16 24.54  
 
SNOWFALL (IN)  
TODAY 0.0 MM MM 0.0  
MONTH TO DATE 0.0 0.0  
SINCE OCT 1 8.1 9.2  
SINCE JUL 1 8.1 9.2  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 2 4 -2 3  
MONTH TO DATE 43 55 -12 50  
SINCE JUN 1 43 55 -12 50  
SINCE JUL 1 4364 4313 51 4764  
 
COOLING  
TODAY 0 1 -1 0  
MONTH TO DATE 11 11 0 0  
SINCE JUN 1 11 11 0 0  
SINCE JAN 1 46 21 25 0    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 8 RESULTANT WIND DIRECTION N (10)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION N (340)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION N (340)  
AVERAGE WIND SPEED 8.2  
 
SKY COVER  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 300 AM  
LOWEST 53 300 PM  
AVERAGE 73  
   
......................................................
 
 
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 70 95 2019  
MINIMUM TEMPERATURE (F) 53 38 1952  
 
SUNRISE AND SUNSET  
JUNE 11 2023..........SUNRISE 512 AM PDT SUNSET 906 PM PDT  
JUNE 12 2023..........SUNRISE 512 AM PDT SUNSET 907 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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