765  
CDUS46 KSTO 210847  
CLIMOD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SACRAMENTO  
147 AM PDT THU AUG 21 2025  
   
...............................
 
 
   
..THE MODESTO CA CLIMATE SUMMARY FOR AUGUST 20 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 97 358 PM 104 1950 93 4 95  
MINIMUM 62 600 AM 50 1968 62 0 63  
AVERAGE 80 78 2 79  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 T 2023 0.00 0.00 0.00  
MONTH TO DATE 0.00 0.01 -0.01 T  
SINCE OCT 1 8.79 12.21 -3.42 17.52  
SINCE JAN 1 5.15 8.38 -3.23 13.77  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE JUN 1 0 5 -5 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
YESTERDAY 15 12 3 14  
MONTH TO DATE 279 266 13 339  
SINCE JUN 1 956 983 -27 1369  
SINCE JAN 1 1164 1148 16 1517    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 8 RESULTANT WIND DIRECTION NW (320)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION NW (330)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 7.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 65 600 AM  
LOWEST 16 400 PM  
AVERAGE 41  
   
......................................................
 
 
THE MODESTO CA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 93 101 1969  
MINIMUM TEMPERATURE (F) 62 50 1959  
 
SUNRISE AND SUNSET  
AUGUST 21 2025........SUNRISE 625 AM PDT SUNSET 748 PM PDT  
AUGUST 22 2025........SUNRISE 626 AM PDT SUNSET 747 PM PDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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