344  
CDUS46 KSEW 150825  
CLISEA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SEATTLE  
125 AM PDT MON JUL 15 2024  
   
...............................
 
 
   
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR JULY 14 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 83 452 PM 91 1996 78 5 87  
MINIMUM 58 1159 PM 50 1982 57 1 58  
AVERAGE 71 67 4 73  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.74 1957 0.02 -0.02 0.00  
MONTH TO DATE 0.00 0.32 -0.32 0.00  
SINCE OCT 1 33.28 36.48 -3.20 28.91  
SINCE JAN 1 16.13 20.54 -4.41 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 0.0 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 2 20 -18 2  
SINCE JUN 1 134 138 -4 114  
SINCE JUL 1 2 20 -18 2  
 
COOLING  
YESTERDAY 6 3 3 8  
MONTH TO DATE 107 32 75 48  
SINCE JUN 1 126 61 65 77  
SINCE JAN 1 133 71 62 112    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION SW (210)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION SW (220)  
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION SW (230)  
AVERAGE WIND SPEED 6.7  
 
SKY COVER  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 81 1100 PM  
LOWEST 37 500 PM  
AVERAGE 59  
   
......................................................
 
 
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 78 93 2018  
MINIMUM TEMPERATURE (F) 57 49 1982  
 
SUNRISE AND SUNSET  
JULY 15 2024..........SUNRISE 528 AM PDT SUNSET 902 PM PDT  
JULY 16 2024..........SUNRISE 529 AM PDT SUNSET 901 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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