510  
CDUS46 KSEW 020217  
CLISEA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SEATTLE  
617 PM PST MON JAN 01 2024  
   
...............................
 
 
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR JANUARY 1 2024...  
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1945 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 47 204 PM 58 2006 47 0 46  
MINIMUM 34 539 AM 10 1952 37 -3 35  
AVERAGE 41 42 -1 41  
 
PRECIPITATION (IN)  
TODAY 0.00 1.37 1964 0.19 -0.19 0.01  
MONTH TO DATE 0.00 0.19 -0.19 0.01  
SINCE OCT 1 17.15 16.13 1.02 14.90  
SINCE JAN 1 0.00 0.19 -0.19 0.01  
 
SNOWFALL (IN)  
TODAY 0.0 6.8 1950 0.0  
MONTH TO DATE 0.0 0.0  
SINCE OCT 1 0.0 5.8  
SINCE JUL 1 0.0 5.8  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 24 23 1 24  
MONTH TO DATE 24 23 1 24  
SINCE DEC 1 620 734 -114 829  
SINCE JUL 1 1623 1795 -172 1779  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 0 0 0 0    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION E (70)  
HIGHEST WIND SPEED 7 HIGHEST WIND DIRECTION NE (40)  
HIGHEST GUST SPEED 9 HIGHEST GUST DIRECTION S (170)  
AVERAGE WIND SPEED 2.7  
 
SKY COVER  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 600 AM  
LOWEST 71 200 PM  
AVERAGE 84  
   
......................................................
 
 
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 47 56 2003  
2007  
MINIMUM TEMPERATURE (F) 37 6 1950  
 
SUNRISE AND SUNSET  
JANUARY 1 2024.......SUNRISE 757 AM PST SUNSET 429 PM PST  
JANUARY 2 2024.......SUNRISE 757 AM PST SUNSET 430 PM PST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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