603  
CDUS46 KSEW 100828  
CLISEA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SEATTLE  
128 AM PDT MON JUN 10 2024  
   
...............................
 
 
   
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR JUNE 9 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 71 345 PM 96 1955 70 1 56  
MINIMUM 53 1159 PM 44 1946 52 1 52  
1971  
2008  
AVERAGE 62 61 1 54  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.10 2022 0.05 -0.05 0.19  
MONTH TO DATE 1.10 0.50 0.60 0.19  
SINCE OCT 1 33.19 35.21 -2.02 27.88  
SINCE JAN 1 16.04 19.27 -3.23 12.99  
 
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 0.3 8.1  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 3 5 -2 11  
MONTH TO DATE 48 46 2 33  
SINCE JUN 1 48 46 2 33  
SINCE JUL 1 4199 4304 -105 4354  
 
COOLING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 1 9 -8 11  
SINCE JUN 1 1 9 -8 11  
SINCE JAN 1 8 19 -11 46    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 8 RESULTANT WIND DIRECTION SW (210)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION SW (230)  
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION SW (240)  
AVERAGE WIND SPEED 8.2  
 
SKY COVER  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 80 1100 PM  
LOWEST 53 400 PM  
AVERAGE 67  
   
......................................................
 
 
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 70 83 1982  
1986  
MINIMUM TEMPERATURE (F) 52 43 1946  
 
SUNRISE AND SUNSET  
JUNE 10 2024..........SUNRISE 512 AM PDT SUNSET 906 PM PDT  
JUNE 11 2024..........SUNRISE 512 AM PDT SUNSET 906 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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