547  
CDUS46 KSTO 010840  
CLIMOD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SACRAMENTO  
140 AM PDT SUN OCT 01 2023  
   
...............................
 
 
   
..THE MODESTO CA CLIMATE SUMMARY FOR SEPTEMBER 30 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 71 1:27 PM 100 1988 85 -14 89  
MINIMUM 55 3:13 AM 43 1959 56 -1 57  
AVERAGE 63 70 -7 73  
 
PRECIPITATION (IN)  
YESTERDAY 0.03 0.38 1983 0.01 0.02 0.00  
MONTH TO DATE 0.06 0.06 0.00 0.08  
SINCE OCT 1 20.23 12.27 7.96 9.08  
SINCE JAN 1 12.10 8.44 3.66 0.93  
 
DEGREE DAYS  
HEATING  
YESTERDAY 2 0 2 0  
MONTH TO DATE 2 0 2 0  
SINCE SEP 1 2 0 2 0  
SINCE JUL 1 2 0 2 0  
 
COOLING  
YESTERDAY 0 6 -6 8  
MONTH TO DATE 205 269 -64 373  
SINCE SEP 1 205 269 -64 373  
SINCE JAN 1 1450 1546 -96 1800    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION NE (60)  
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION N (20)  
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION N (340)  
AVERAGE WIND SPEED 4.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 6:00 AM  
LOWEST 47 2:00 PM  
AVERAGE 69  
   
......................................................
 
 
THE MODESTO CA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 85 99 2001  
MINIMUM TEMPERATURE (F) 56 40 1950  
 
SUNRISE AND SUNSET  
OCTOBER 1 2023.......SUNRISE 6:59 AM PDT SUNSET 6:47 PM PDT  
OCTOBER 2 2023.......SUNRISE 7:00 AM PDT SUNSET 6:45 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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