659  
CDUS46 KSEW 210128  
CLIOLM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SEATTLE  
628 PM PDT WED AUG 20 2025  
   
...............................  
 
   
..THE OLYMPIA WA AIRPORT CLIMATE SUMMARY FOR AUGUST 20 2025  
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1941 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 78 352 PM 96 2016 78 0 66  
MINIMUM 56 335 AM 39 1952 50 6 54  
AVERAGE 67 64 3 60  
 
PRECIPITATION (IN)  
TODAY 0.00 0.68 2008 0.04 -0.04 0.20  
MONTH TO DATE 1.05 0.50 0.55 0.90  
SINCE OCT 1 38.92 48.12 -9.20 46.56  
SINCE JAN 1 18.02 26.99 -8.97 26.20  
 
DEGREE DAYS  
HEATING  
TODAY 0 2 -2 5  
MONTH TO DATE 15 40 -25 18  
SINCE JUN 1 227 302 -75 223  
SINCE JUL 1 62 113 -51 42  
 
COOLING  
TODAY 2 1 1 0  
MONTH TO DATE 47 37 10 49  
SINCE JUN 1 143 96 47 171  
SINCE JAN 1 143 98 45 174    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 0 RESULTANT WIND DIRECTION E (90)  
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION N (20)  
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION NE (30)  
AVERAGE WIND SPEED 2.0  
 
SKY COVER  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 300 AM  
LOWEST 40 200 PM  
AVERAGE 68  
   
......................................................  
 
THE OLYMPIA WA AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 78 95 1958  
MINIMUM TEMPERATURE (F) 50 38 1973  
 
SUNRISE AND SUNSET  
AUGUST 20 2025........SUNRISE 616 AM PDT SUNSET 813 PM PDT  
AUGUST 21 2025........SUNRISE 617 AM PDT SUNSET 811 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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