450  
CDUS46 KSEW 240826  
CLISEA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SEATTLE  
126 AM PDT MON JUN 24 2024  
   
...............................
 
 
   
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR JUNE 23 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 67 512 PM 92 1992 72 -5 81  
MINIMUM 54 1159 PM 40 1952 54 0 54  
AVERAGE 61 63 -2 68  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.58 1969 0.05 -0.05 0.00  
MONTH TO DATE 1.16 1.19 -0.03 1.22  
SINCE OCT 1 33.25 35.90 -2.65 28.91  
SINCE JAN 1 16.10 19.96 -3.86 14.02  
 
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 4 3 1 0  
MONTH TO DATE 120 99 21 107  
SINCE JUN 1 120 99 21 107  
SINCE JUL 1 4271 4357 -86 4428  
 
COOLING  
YESTERDAY 0 1 -1 3  
MONTH TO DATE 14 23 -9 20  
SINCE JUN 1 14 23 -9 20  
SINCE JAN 1 21 33 -12 55    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 12 RESULTANT WIND DIRECTION SW (220)  
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION SW (210)  
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION S (200)  
AVERAGE WIND SPEED 12.1  
 
SKY COVER  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 81 1200 AM  
LOWEST 47 500 PM  
AVERAGE 64  
   
......................................................
 
 
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 73 92 1992  
MINIMUM TEMPERATURE (F) 54 45 1952  
1985  
 
SUNRISE AND SUNSET  
JUNE 24 2024..........SUNRISE 513 AM PDT SUNSET 910 PM PDT  
JUNE 25 2024..........SUNRISE 514 AM PDT SUNSET 910 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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