757  
CDUS46 KSGX 170924  
CLIRAL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
224 AM PDT WED SEP 17 2025  
   
...............................  
 
...THE RIVERSIDE MUNI AIRPORT CA CLIMATE SUMMARY FOR SEPTEMBER 16 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 101 1:43 PM 110 1922 92 9 77  
2000  
MINIMUM 67 5:38 AM 44 1893 62 5 58  
1911  
AVERAGE 84 77 7 68  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.08 1982 0.00 0.00 T  
MONTH TO DATE 0.00 0.05 -0.05 T  
SINCE JUL 1 T 0.19 -0.19 T  
SINCE OCT 1 4.34 9.31 -4.97 12.30  
SINCE JAN 1 4.29 6.90 -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 19 12 7 3  
MONTH TO DATE 229 211 18 284  
SINCE SEP 1 229 211 18 284  
SINCE JAN 1 1610 1527 83 1684    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION W (270)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION W (260)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION W (250)  
AVERAGE WIND SPEED 5.4  
 
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 68 4:00 AM  
LOWEST 22 1:00 PM  
AVERAGE 45  
   
......................................................  
 
THE RIVERSIDE MUNI AIRPORT CA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 91 112 1922  
MINIMUM TEMPERATURE (F) 62 43 1893  
1908  
 
SUNRISE AND SUNSET  
SEPTEMBER 17 2025.....SUNRISE 6:35 AM PDT SUNSET 6:53 PM PDT  
SEPTEMBER 18 2025.....SUNRISE 6:35 AM PDT SUNSET 6:52 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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