403  
CDUS46 KSEW 160830  
CLISEA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SEATTLE  
130 AM PDT SUN JUN 16 2024  
   
...............................  
 
   
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR JUNE 15 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 60 349 PM 88 1963 71 -11 72  
MINIMUM 48 823 AM 43 1949 53 -5 47  
AVERAGE 54 62 -8 60  
 
PRECIPITATION (IN)  
YESTERDAY T 1.05 2017 0.06 -0.06 0.00  
MONTH TO DATE 1.12 0.82 0.30 0.42  
SINCE OCT 1 33.21 35.53 -2.32 28.11  
SINCE JAN 1 16.06 19.59 -3.53 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 11 4 7 5  
MONTH TO DATE 90 71 19 60  
SINCE JUN 1 90 71 19 60  
SINCE JUL 1 4241 4329 -88 4381  
 
COOLING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 1 15 -14 17  
SINCE JUN 1 1 15 -14 17  
SINCE JAN 1 8 25 -17 52    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 14 RESULTANT WIND DIRECTION SW (210)  
HIGHEST WIND SPEED 26 HIGHEST WIND DIRECTION SW (220)  
HIGHEST GUST SPEED 37 HIGHEST GUST DIRECTION SW (220)  
AVERAGE WIND SPEED 13.7  
 
SKY COVER  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 83 400 AM  
LOWEST 49 200 PM  
AVERAGE 66  
   
......................................................  
 
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 71 88 1961  
1969  
MINIMUM TEMPERATURE (F) 53 42 1954  
 
SUNRISE AND SUNSET  
JUNE 16 2024..........SUNRISE 512 AM PDT SUNSET 909 PM PDT  
JUNE 17 2024..........SUNRISE 512 AM PDT SUNSET 909 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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