548  
CDUS46 KSEW 170835  
CLIOLM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SEATTLE  
135 AM PDT SUN AUG 17 2025  
   
...............................  
 
   
..THE OLYMPIA WA AIRPORT CLIMATE SUMMARY FOR AUGUST 16 2025  
 
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)  
YESTERDAY  
MAXIMUM 72 246 PM 99 2020 78 -6 79  
2023  
MINIMUM 59 1028 PM 40 1986 51 8 54  
2000  
AVERAGE 66 64 2 67  
 
PRECIPITATION (IN)  
YESTERDAY 0.02 0.58 1995 0.03 -0.01 0.00  
MONTH TO DATE 1.05 0.35 0.70 0.00  
SINCE OCT 1 38.92 47.97 -9.05 45.66  
SINCE JAN 1 18.02 26.84 -8.82 25.30  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 2 -2 0  
MONTH TO DATE 13 32 -19 12  
SINCE JUN 1 225 294 -69 217  
SINCE JUL 1 60 105 -45 36  
 
COOLING  
YESTERDAY 1 2 -1 2  
MONTH TO DATE 44 32 12 47  
SINCE JUN 1 140 91 49 169  
SINCE JAN 1 140 93 47 172    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION SW (220)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION SW (240)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION W (250)  
AVERAGE WIND SPEED 6.9  
 
SKY COVER  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 400 AM  
LOWEST 63 300 PM  
AVERAGE 80  
   
......................................................  
 
THE OLYMPIA WA AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 78 98 1977  
MINIMUM TEMPERATURE (F) 51 38 1973  
 
SUNRISE AND SUNSET  
AUGUST 17 2025........SUNRISE 612 AM PDT SUNSET 818 PM PDT  
AUGUST 18 2025........SUNRISE 613 AM PDT SUNSET 816 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