626  
CDUS46 KSEW 120117  
CLISEA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SEATTLE  
617 PM PDT MON MAR 11 2024  
   
...............................
 
 
   
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR MARCH 11 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 49 159 PM 65 1965 54 -5 52  
2005  
MINIMUM 41 637 AM 23 1956 39 2 39  
AVERAGE 45 46 -1 46  
 
PRECIPITATION (IN)  
TODAY 0.07 1.01 2002 0.14 -0.07 0.03  
MONTH TO DATE 0.86 1.53 -0.67 1.33  
SINCE OCT 1 28.16 27.01 1.15 21.67  
SINCE JAN 1 11.01 11.07 -0.06 6.78  
 
SNOWFALL (IN)  
TODAY MM 1.2 1954 0.0  
MONTH TO DATE 0.3 T  
SINCE OCT 1 0.3 8.1  
SINCE JUL 1 0.3 8.1  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
TODAY 20 19 1 19  
MONTH TO DATE 260 213 47 264  
SINCE MAR 1 260 213 47 264  
SINCE JUL 1 3150 3260 -110 3351  
 
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 9 RESULTANT WIND DIRECTION S (180)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION S (160)  
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION S (180)  
AVERAGE WIND SPEED 9.7  
 
SKY COVER  
AVERAGE SKY COVER 0.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 86 200 AM  
LOWEST 61 1200 PM  
AVERAGE 74  
   
......................................................
 
 
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 54 73 2018  
MINIMUM TEMPERATURE (F) 40 25 1954  
1956  
 
SUNRISE AND SUNSET  
MARCH 11 2024.........SUNRISE 729 AM PDT SUNSET 710 PM PDT  
MARCH 12 2024.........SUNRISE 727 AM PDT SUNSET 711 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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