481  
CDUS46 KSTO 160031  
CLIVCB  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SACRAMENTO  
531 PM PDT FRI MAY 15 2026  
   
...............................  
 
   
..THE VACAVILLE CLIMATE SUMMARY FOR MAY 15 2026  
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1998 TO 2026  
 
WEATHER ITEM OBSERVED LAST  
VALUE YEAR    
..............................  
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 89 85  
MINIMUM 50 46  
AVERAGE 70  
 
PRECIPITATION (IN)  
TODAY 0.00 0.00  
MONTH TO DATE 0.46 0.16  
SINCE OCT 1 20.04 21.32  
SINCE JAN 1 9.94 10.98  
 
DEGREE DAYS  
HEATING  
TODAY 0 0  
MONTH TO DATE 17 32  
SINCE JUL 1 1994 2244  
 
COOLING  
TODAY 5 1  
MONTH TO DATE 55 39  
SINCE JAN 1 93 49    
..............................  
 
WIND (MPH)  
RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION NE (40)  
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION S (200)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION N (10)  
AVERAGE WIND SPEED 3.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 89 500 AM  
LOWEST 17 1200 PM  
AVERAGE 53  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 
 
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