881  
CDUS46 KSTO 180055  
CLIVCB  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SACRAMENTO  
455 PM PST SUN DEC 17 2023  
   
...............................
 
 
   
..THE VACAVILLE CLIMATE SUMMARY FOR DECEMBER 17 2023
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1998 TO 2023  
 
WEATHER ITEM OBSERVED LAST  
VALUE YEAR    
..............................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 58 57  
MINIMUM 39 28  
AVERAGE 49  
 
PRECIPITATION (IN)  
TODAY 0.11 0.00  
MONTH TO DATE 0.73 3.69  
SINCE OCT 1 2.60 5.17  
SINCE JAN 1 27.30 8.27  
 
DEGREE DAYS  
HEATING  
TODAY 16 22  
MONTH TO DATE 258 328  
SINCE JUL 1 624 807  
 
COOLING  
TODAY 0 0  
MONTH TO DATE 0 0  
SINCE JAN 1 1370 1791    
..............................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION N (10)  
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION N (350)  
HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM  
AVERAGE WIND SPEED 2.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 83 3:00 PM  
LOWEST 45 10:00 AM  
AVERAGE 64  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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