881  
CDUS46 KSTO 210835  
CLIMOD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SACRAMENTO  
135 AM PDT THU SEP 21 2023  
   
...............................
 
 
   
..THE MODESTO CA CLIMATE SUMMARY FOR SEPTEMBER 20 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 83 3:53 PM 104 1939 88 -5 79  
MINIMUM 59 6:33 AM 43 1965 58 1 58  
AVERAGE 71 73 -2 69  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.28 2005 0.00 0.00 0.00  
MONTH TO DATE 0.03 0.02 0.01 0.08  
SINCE OCT 1 20.20 12.23 7.97 9.08  
SINCE JAN 1 12.07 8.40 3.67 0.93  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE SEP 1 0 0 0 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
YESTERDAY 6 8 -2 4  
MONTH TO DATE 173 199 -26 289  
SINCE SEP 1 173 199 -26 289  
SINCE JAN 1 1418 1476 -58 1716    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION NW (320)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION NW (330)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION N (340)  
AVERAGE WIND SPEED 4.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 83 7:00 AM  
LOWEST 41 5:00 PM  
AVERAGE 62  
   
......................................................
 
 
THE MODESTO CA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 88 104 1939  
MINIMUM TEMPERATURE (F) 58 45 1960  
 
SUNRISE AND SUNSET  
SEPTEMBER 21 2023.....SUNRISE 6:51 AM PDT SUNSET 7:02 PM PDT  
SEPTEMBER 22 2023.....SUNRISE 6:52 AM PDT SUNSET 7:01 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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