518  
CDUS46 KSTO 180935  
CLIMOD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SACRAMENTO  
135 AM PST MON DEC 18 2023  
   
...............................
 
 
   
..THE MODESTO CA CLIMATE SUMMARY FOR DECEMBER 17 2023
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1931 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 58 2:11 PM 71 1958 56 2 52  
MINIMUM 38 6:43 AM 25 1965 38 0 29  
AVERAGE 48 47 1 41  
 
PRECIPITATION (IN)  
YESTERDAY 0.08 0.69 1947 0.07 0.01 0.00  
MONTH TO DATE 0.10 1.13 -1.03 3.29  
SINCE OCT 1 1.06 2.75 -1.69 4.48  
SINCE JAN 1 13.16 11.19 1.97 5.41  
 
DEGREE DAYS  
HEATING  
YESTERDAY 17 18 -1 24  
MONTH TO DATE 269 288 -19 316  
SINCE DEC 1 269 288 -19 316  
SINCE JUL 1 644 678 -34 839  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 1549 1623 -74 1922    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 0 RESULTANT WIND DIRECTION E (90)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION NE (40)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION NE (30)  
AVERAGE WIND SPEED 3.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
RAIN  
LIGHT RAIN  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 10:00 PM  
LOWEST 49 2:00 PM  
AVERAGE 75  
   
......................................................
 
 
THE MODESTO CA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 56 67 1958  
MINIMUM TEMPERATURE (F) 38 26 1935  
 
SUNRISE AND SUNSET  
DECEMBER 18 2023......SUNRISE 7:13 AM PST SUNSET 4:47 PM PST  
DECEMBER 19 2023......SUNRISE 7:14 AM PST SUNSET 4:48 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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