912  
CDUS46 KSGX 190955  
CLIRAL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
255 AM PDT TUE AUG 19 2025  
   
...............................
 
 
...THE RIVERSIDE MUNI AIRPORT CA CLIMATE SUMMARY FOR AUGUST 18 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 94 1:30 PM 108 1950 95 -1 95  
2020  
MINIMUM 63 5:55 AM 47 1917 65 -2 61  
1918  
1924  
AVERAGE 79 80 -1 78  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.62 1945 0.00 0.00 0.00  
MONTH TO DATE 0.00 0.01 -0.01 T  
SINCE JUL 1 T 0.13 -0.13 T  
SINCE OCT 1 4.34 9.25 -4.91 12.30  
SINCE JAN 1 4.29 6.84 -2.55 11.26  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE JUN 1 0 2 -2 1  
SINCE JUL 1 0 0 0 0  
 
COOLING  
YESTERDAY 14 15 -1 13  
MONTH TO DATE 259 270 -11 337  
SINCE JUN 1 902 934 -32 1169  
SINCE JAN 1 1139 1127 12 1228    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION W (270)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION W (270)  
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION W (260)  
AVERAGE WIND SPEED 5.3  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 6:00 AM  
LOWEST 28 5:00 PM  
AVERAGE 59  
   
......................................................
 
 
THE RIVERSIDE MUNI AIRPORT CA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 95 108 1915  
MINIMUM TEMPERATURE (F) 65 44 1916  
 
SUNRISE AND SUNSET  
AUGUST 19 2025........SUNRISE 6:15 AM PDT SUNSET 7:31 PM PDT  
AUGUST 20 2025........SUNRISE 6:15 AM PDT SUNSET 7:30 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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