296  
CDUS46 KSEW 210223  
CLISEA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SEATTLE  
623 PM PST MON JAN 20 2025  
   
...............................  
 
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR JANUARY 20 2025...  
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1945 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 43 340 PM 64 1981 48 -5 51  
MINIMUM 28 359 AM 16 1954 38 -10 35  
1962  
AVERAGE 36 43 -7 43  
 
PRECIPITATION (IN)  
TODAY 0.00 1.66 1972 0.19 -0.19 0.26  
MONTH TO DATE 1.04 3.83 -2.79 3.29  
SINCE OCT 1 14.43 19.77 -5.34 20.44  
SINCE JAN 1 1.04 3.83 -2.79 3.29  
 
SNOWFALL (IN)  
TODAY 0.0 1.5 1951 0.0  
MONTH TO DATE 0.0 T  
SINCE OCT 1 0.0 T  
SINCE JUL 1 0.0 T  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 29 22 7 22  
MONTH TO DATE 488 448 40 564  
SINCE DEC 1 1134 1159 -25 1160  
SINCE JUL 1 2175 2220 -45 2163  
 
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 5 RESULTANT WIND DIRECTION E (80)  
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION E (100)  
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION NE (60)  
AVERAGE WIND SPEED 6.4  
 
SKY COVER  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 69 400 AM  
LOWEST 34 1200 PM  
AVERAGE 52  
   
......................................................  
 
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 49 62 1981  
MINIMUM TEMPERATURE (F) 38 13 1962  
 
SUNRISE AND SUNSET  
JANUARY 20 2025.......SUNRISE 748 AM PST SUNSET 453 PM PST  
JANUARY 21 2025.......SUNRISE 747 AM PST SUNSET 455 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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