466  
CDUS46 KSTO 220135  
CLIVCB  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SACRAMENTO  
535 PM PST SUN DEC 21 2025  
   
...............................
 
 
   
..THE VACAVILLE CLIMATE SUMMARY FOR DECEMBER 21 2025
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1998 TO 2025  
 
WEATHER ITEM OBSERVED LAST  
VALUE YEAR    
..............................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 62 52  
MINIMUM 55 45  
AVERAGE 59  
 
PRECIPITATION (IN)  
TODAY 0.36 0.14  
MONTH TO DATE 0.81 3.32  
SINCE OCT 1 6.25 8.58  
SINCE JAN 1 17.33 24.80  
 
DEGREE DAYS  
HEATING  
TODAY 6 16  
MONTH TO DATE 380 325  
SINCE JUL 1 765 751  
 
COOLING  
TODAY 0 0  
MONTH TO DATE 0 0  
SINCE JAN 1 1400 1840    
..............................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 10 RESULTANT WIND DIRECTION S (180)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION S (190)  
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION S (200)  
AVERAGE WIND SPEED 10.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 300 AM  
LOWEST 78 300 PM  
AVERAGE 89  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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