395  
CDUS46 KSEW 300220  
CLISEA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SEATTLE  
620 PM PST SUN DEC 29 2024  
   
...............................  
 
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR DECEMBER 29 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 47 1253 AM 63 2023 47 0 63  
MINIMUM 43 235 AM 8 1968 37 6 53  
AVERAGE 45 42 3 58  
 
PRECIPITATION (IN)  
TODAY 0.11 1.92 1996 0.18 -0.07 T  
MONTH TO DATE 5.49 5.36 0.13 8.38  
SINCE OCT 1 13.39 15.58 -2.19 17.05  
SINCE JAN 1 32.17 38.98 -6.81 34.87  
 
SNOWFALL (IN)  
TODAY 0.0 2.1 1971 0.0  
MONTH TO DATE 0.0 0.0  
SINCE OCT 1 0.0 0.0  
SINCE JUL 1 0.0 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 20 23 -3 7  
MONTH TO DATE 596 663 -67 560  
SINCE DEC 1 596 663 -67 560  
SINCE JUL 1 1637 1724 -87 1563  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 315 263 52 378    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION S (200)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION SW (230)  
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION SW (240)  
AVERAGE WIND SPEED 6.8  
 
SKY COVER  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 700 AM  
LOWEST 80 100 AM  
AVERAGE 89  
   
......................................................  
 
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 47 56 1945  
1958  
2023  
MINIMUM TEMPERATURE (F) 37 6 1968  
 
SUNRISE AND SUNSET  
DECEMBER 29 2024......SUNRISE 757 AM PST SUNSET 427 PM PST  
DECEMBER 30 2024......SUNRISE 757 AM PST SUNSET 428 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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