433  
CDUS46 KSGX 180919  
CLIRAL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
219 AM PDT FRI SEP 18 2026  
   
...............................
 
 
...THE RIVERSIDE MUNI AIRPORT CA CLIMATE SUMMARY FOR SEPTEMBER 17 2026...  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1893 TO 2026  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 84 2:44 PM 112 1922 91 -7 98  
MINIMUM 65 11:59 PM 43 1893 62 3 70  
1908  
AVERAGE 75 76 -1 84  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.27 1963 0.01 -0.01 0.00  
MONTH TO DATE 0.36 0.06 0.30 0.00  
SINCE JUL 1 0.36 0.20 0.16 T  
SINCE OCT 1 8.25 9.32 -1.07 4.34  
SINCE JAN 1 3.93 6.91 -2.98 4.29  
 
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 10 12 -2 19  
MONTH TO DATE 250 223 27 248  
SINCE SEP 1 250 223 27 248  
SINCE JAN 1 2050 1539 511 1629    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION W (270)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION W (250)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION W (280)  
AVERAGE WIND SPEED 5.2  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 81 12:00 AM  
LOWEST 38 2:00 PM  
AVERAGE 60  
   
......................................................
 
 
THE RIVERSIDE MUNI AIRPORT CA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 91 108 1917  
MINIMUM TEMPERATURE (F) 62 42 1933  
 
SUNRISE AND SUNSET  
SEPTEMBER 18 2026.....SUNRISE 6:35 AM PDT SUNSET 6:52 PM PDT  
SEPTEMBER 19 2026.....SUNRISE 6:36 AM PDT SUNSET 6:50 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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