256  
CDUS46 KSGX 200027  
CLIRAL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
527 PM PDT FRI SEP 19 2025  
   
...............................
 
 
...THE RIVERSIDE MUNI AIRPORT CA CLIMATE SUMMARY FOR SEPTEMBER 19 2025...  
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 90 2:51 PM 106 1939 91 -1 75  
MINIMUM 69 5:20 AM 42 1925 62 7 60  
AVERAGE 80 76 4 68  
 
PRECIPITATION (IN)  
TODAY 0.00 0.65 1963 0.00 0.00 0.00  
MONTH TO DATE 0.05 0.06 -0.01 T  
SINCE JUL 1 0.05 0.20 -0.15 T  
SINCE OCT 1 4.39 9.32 -4.93 12.30  
SINCE JAN 1 4.34 6.91 -2.57 11.26  
 
DEGREE DAYS  
HEATING  
TODAY 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  
TODAY 15 11 4 3  
MONTH TO DATE 278 245 33 292  
SINCE SEP 1 278 245 33 292  
SINCE JAN 1 1659 1561 98 1692    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION W (250)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION W (270)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION W (270)  
AVERAGE WIND SPEED 2.8  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 78 7:00 AM  
LOWEST 40 2:00 PM  
AVERAGE 59  
   
......................................................
 
 
THE RIVERSIDE MUNI AIRPORT CA CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 90 106 1943  
2015  
MINIMUM TEMPERATURE (F) 61 44 1925  
 
SUNRISE AND SUNSET  
SEPTEMBER 19 2025.....SUNRISE 6:36 AM PDT SUNSET 6:50 PM PDT  
SEPTEMBER 20 2025.....SUNRISE 6:37 AM PDT SUNSET 6:49 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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