815  
CDUS46 KSEW 210119  
CLISEA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SEATTLE  
619 PM PDT SAT APR 20 2024  
   
...............................  
 
   
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR APRIL 20 2024  
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 72 1217 PM 81 2016 60 12 47  
MINIMUM 53 459 PM 30 1961 44 9 37  
AVERAGE 63 52 11 42  
 
PRECIPITATION (IN)  
TODAY T 0.49 1946 0.10 -0.10 0.31  
MONTH TO DATE 0.40 2.28 -1.88 3.23  
SINCE OCT 1 30.06 31.93 -1.87 26.13  
SINCE JAN 1 12.91 15.99 -3.08 11.24  
 
SNOWFALL (IN)  
TODAY 0.0 MM MM 0.0  
MONTH TO DATE 0.0 T  
SINCE OCT 1 0.3 8.1  
SINCE JUL 1 0.3 8.1  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 2 13 -11 23  
MONTH TO DATE 289 293 -4 391  
SINCE MAR 1 838 850 -12 983  
SINCE JUL 1 3728 3897 -169 4070  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE MAR 1 0 0 0 0  
SINCE JAN 1 0 0 0 0    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION SE (140)  
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION W (250)  
HIGHEST GUST SPEED 36 HIGHEST GUST DIRECTION W (270)  
AVERAGE WIND SPEED 12.7  
 
SKY COVER  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 54 400 PM  
LOWEST 19 1100 AM  
AVERAGE 37  
   
......................................................  
 
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 60 76 1982  
MINIMUM TEMPERATURE (F) 44 29 1951  
 
SUNRISE AND SUNSET  
APRIL 20 2024.........SUNRISE 610 AM PDT SUNSET 807 PM PDT  
APRIL 21 2024.........SUNRISE 608 AM PDT SUNSET 808 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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