666  
CDUS46 KSGX 220928  
CLIRAL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
228 AM PDT MON SEP 22 2025  
   
...............................
 
 
...THE RIVERSIDE MUNI AIRPORT CA CLIMATE SUMMARY FOR SEPTEMBER 21 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 81 5:23 PM 109 1943 90 -9 80  
MINIMUM 61 5:53 AM 42 1924 61 0 57  
AVERAGE 71 76 -5 69  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.02 1914 0.00 0.00 0.00  
MONTH TO DATE 0.05 0.07 -0.02 T  
SINCE JUL 1 0.05 0.21 -0.16 T  
SINCE OCT 1 4.39 9.33 -4.94 12.30  
SINCE JAN 1 4.34 6.92 -2.58 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 6 10 -4 4  
MONTH TO DATE 298 266 32 301  
SINCE SEP 1 298 266 32 301  
SINCE JAN 1 1679 1582 97 1701    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION SW (240)  
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION W (260)  
HIGHEST GUST SPEED 13 HIGHEST GUST DIRECTION SW (240)  
AVERAGE WIND SPEED 1.7  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87 6:00 AM  
LOWEST 42 3:00 PM  
AVERAGE 65  
   
......................................................
 
 
THE RIVERSIDE MUNI AIRPORT CA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 90 113 1943  
MINIMUM TEMPERATURE (F) 61 43 1944  
 
SUNRISE AND SUNSET  
SEPTEMBER 22 2025.....SUNRISE 6:38 AM PDT SUNSET 6:46 PM PDT  
SEPTEMBER 23 2025.....SUNRISE 6:39 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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