375  
CDUS46 KSGX 280925  
CLIRAL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
225 AM PDT SUN SEP 28 2025  
   
...............................  
 
...THE RIVERSIDE MUNI AIRPORT CA CLIMATE SUMMARY FOR SEPTEMBER 27 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 80 2:04 PM 113 2010 88 -8 87  
MINIMUM 65 11:26 PM 40 1948 60 5 58  
AVERAGE 73 74 -1 73  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.55 1919 0.01 -0.01 0.00  
MONTH TO DATE 0.05 0.10 -0.05 T  
SINCE JUL 1 0.05 0.24 -0.19 T  
SINCE OCT 1 4.39 9.36 -4.97 12.30  
SINCE JAN 1 4.34 6.95 -2.61 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 8 9 -1 8  
MONTH TO DATE 372 324 48 356  
SINCE SEP 1 372 324 48 356  
SINCE JAN 1 1753 1640 113 1756    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION W (270)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION W (270)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION W (270)  
AVERAGE WIND SPEED 6.2  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 84 11:00 PM  
LOWEST 50 1:00 PM  
AVERAGE 67  
   
......................................................  
 
THE RIVERSIDE MUNI AIRPORT CA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 88 106 1924  
1963  
MINIMUM TEMPERATURE (F) 60 42 1915  
 
SUNRISE AND SUNSET  
SEPTEMBER 28 2025.....SUNRISE 6:42 AM PDT SUNSET 6:38 PM PDT  
SEPTEMBER 29 2025.....SUNRISE 6:43 AM PDT SUNSET 6:36 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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