267  
CDUS46 KSEW 210125  
CLISEA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SEATTLE  
625 PM PDT WED MAR 20 2024  
   
...............................
 
 
   
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR MARCH 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 51 134 PM 79 2019 55 -4 56  
MINIMUM 46 915 AM 26 1955 40 6 46  
AVERAGE 49 48 1 51  
 
PRECIPITATION (IN)  
TODAY 0.00 0.76 1984 0.13 -0.13 0.14  
MONTH TO DATE 1.14 2.76 -1.62 2.12  
SINCE OCT 1 28.44 28.24 0.20 22.46  
SINCE JAN 1 11.29 12.30 -1.01 7.57  
 
SNOWFALL (IN)  
TODAY 0.0 2.3 1966 0.0  
MONTH TO DATE 0.3 T  
SINCE OCT 1 0.3 8.1  
SINCE JUL 1 0.3 8.1  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 16 17 -1 14  
MONTH TO DATE 382 374 8 392  
SINCE MAR 1 382 374 8 392  
SINCE JUL 1 3272 3421 -149 3479  
 
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 8 RESULTANT WIND DIRECTION S (200)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION SW (220)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION SW (210)  
AVERAGE WIND SPEED 8.3  
 
SKY COVER  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 79 1200 AM  
LOWEST 65 100 PM  
AVERAGE 72  
   
......................................................
 
 
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 55 69 1992  
MINIMUM TEMPERATURE (F) 41 29 1952  
1954  
2009  
 
SUNRISE AND SUNSET  
MARCH 20 2024.........SUNRISE 711 AM PDT SUNSET 723 PM PDT  
MARCH 21 2024.........SUNRISE 709 AM PDT SUNSET 724 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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