539  
CDUS46 KSGX 030939  
CLIRAL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
239 AM PDT WED SEP 03 2025  
   
...............................  
 
...THE RIVERSIDE MUNI AIRPORT CA CLIMATE SUMMARY FOR SEPTEMBER 2 2025...  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1893 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 100 3:00 PM 111 1982 95 5 100  
2007  
MINIMUM 69 MM 46 1916 64 5 68  
AVERAGE 85 79 6 84  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.07 1945 0.01 -0.01 0.00  
MONTH TO DATE 0.00 0.01 -0.01 0.00  
SINCE JUL 1 T 0.15 -0.15 T  
SINCE OCT 1 4.34 9.27 -4.93 12.30  
SINCE JAN 1 4.29 6.86 -2.57 11.26  
 
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 20 14 6 19  
MONTH TO DATE 39 28 11 36  
SINCE SEP 1 39 28 11 36  
SINCE JAN 1 1420 1344 76 1436    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION E (90)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION E (100)  
HIGHEST GUST SPEED 44 HIGHEST GUST DIRECTION E (110)  
AVERAGE WIND SPEED 7.5  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 66 4:00 AM  
LOWEST 21 2:00 PM  
AVERAGE 44  
   
......................................................  
 
THE RIVERSIDE MUNI AIRPORT CA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 94 112 1955  
2007  
MINIMUM TEMPERATURE (F) 64 45 1916  
 
SUNRISE AND SUNSET  
SEPTEMBER 3 2025.....SUNRISE 6:25 AM PDT SUNSET 7:12 PM PDT  
SEPTEMBER 4 2025.....SUNRISE 6:26 AM PDT SUNSET 7:11 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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