808  
CDUS46 KSEW 130827  
CLISEA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SEATTLE  
127 AM PDT THU JUN 13 2024  
   
...............................
 
 
   
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR JUNE 12 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 67 357 PM 95 2019 70 -3 84  
MINIMUM 51 456 AM 38 1952 53 -2 57  
AVERAGE 59 61 -2 71  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.60 1953 0.05 -0.05 0.00  
MONTH TO DATE 1.11 0.66 0.45 0.42  
SINCE OCT 1 33.20 35.37 -2.17 28.11  
SINCE JAN 1 16.05 19.43 -3.38 13.22  
 
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 6 4 2 0  
MONTH TO DATE 64 59 5 43  
SINCE JUN 1 64 59 5 43  
SINCE JUL 1 4215 4317 -102 4364  
 
COOLING  
YESTERDAY 0 1 -1 6  
MONTH TO DATE 1 12 -11 17  
SINCE JUN 1 1 12 -11 17  
SINCE JAN 1 8 22 -14 52    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 8 RESULTANT WIND DIRECTION N (10)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION NE (30)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION N (350)  
AVERAGE WIND SPEED 9.9  
 
SKY COVER  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 71 400 AM  
LOWEST 37 300 PM  
AVERAGE 54  
   
......................................................
 
 
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 70 94 2002  
MINIMUM TEMPERATURE (F) 53 42 1945  
1952  
 
SUNRISE AND SUNSET  
JUNE 13 2024..........SUNRISE 512 AM PDT SUNSET 907 PM PDT  
JUNE 14 2024..........SUNRISE 512 AM PDT SUNSET 908 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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