005  
CDUS46 KSEW 050127  
CLISEA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SEATTLE  
627 PM PDT SAT OCT 04 2025  
   
...............................  
 
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR OCTOBER 4 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 65 309 PM 76 1966 65 0 61  
MINIMUM 55 635 AM 38 1957 50 5 48  
AVERAGE 60 57 3 55  
 
PRECIPITATION (IN)  
TODAY T 0.92 1950 0.09 -0.09 0.42  
MONTH TO DATE 0.30 0.33 -0.03 0.42  
SINCE OCT 1 0.30 0.33 -0.03 0.42  
SINCE JAN 1 16.57 23.73 -7.16 19.20  
 
SNOWFALL (IN)  
TODAY 0.0 MM MM 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 5 8 -3 10  
MONTH TO DATE 20 29 -9 36  
SINCE SEP 1 71 131 -60 142  
SINCE JUL 1 95 186 -91 180  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE SEP 1 34 30 4 42  
SINCE JAN 1 328 263 65 315    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION N (10)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION N (360)  
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION N (360)  
AVERAGE WIND SPEED 5.0  
 
SKY COVER  
AVERAGE SKY COVER 0.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 200 AM  
LOWEST 65 200 PM  
AVERAGE 78  
   
......................................................  
 
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 65 82 1980  
MINIMUM TEMPERATURE (F) 50 38 1974  
 
SUNRISE AND SUNSET  
OCTOBER 4 2025.......SUNRISE 713 AM PDT SUNSET 642 PM PDT  
OCTOBER 5 2025.......SUNRISE 714 AM PDT SUNSET 640 PM PDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.
The Nexlab WA Page
Main Text Page