520  
CDUS46 KSTO 200959  
CLIMOD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SACRAMENTO  
159 AM PST SAT DEC 20 2025  
   
...............................
 
 
   
..THE MODESTO CA CLIMATE SUMMARY FOR DECEMBER 19 2025
 
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1931 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 57 211 PM 65 1981 55 2 53  
2005  
MINIMUM 50 649 AM 24 1965 38 12 48  
AVERAGE 54 47 7 51  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.69 1952 0.08 -0.08 0.00  
MONTH TO DATE 0.00 1.28 -1.28 0.94  
SINCE OCT 1 4.03 2.90 1.13 2.32  
SINCE JAN 1 9.38 11.34 -1.96 16.09  
 
DEGREE DAYS  
HEATING  
YESTERDAY 11 18 -7 14  
MONTH TO DATE 306 324 -18 284  
SINCE DEC 1 306 324 -18 284  
SINCE JUL 1 615 714 -99 672  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 1727 1623 104 2200    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION SE (140)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION SE (120)  
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION SE (120)  
AVERAGE WIND SPEED 5.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 500 AM  
LOWEST 80 400 PM  
AVERAGE 88  
   
......................................................
 
 
THE MODESTO CA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 55 71 1969  
MINIMUM TEMPERATURE (F) 38 26 1965  
 
SUNRISE AND SUNSET  
DECEMBER 20 2025......SUNRISE 715 AM PST SUNSET 449 PM PST  
DECEMBER 21 2025......SUNRISE 715 AM PST SUNSET 449 PM PST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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