862  
CDUS46 KSGX 220031  
CLIRAL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
531 PM PDT WED MAY 21 2025  
   
...............................
 
 
   
..THE RIVERSIDE MUNI AIRPORT CA CLIMATE SUMMARY FOR MAY 21 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 95 2:08 PM 105 2000 81 14 77  
MINIMUM 60 5:10 AM 36 1948 56 4 55  
AVERAGE 78 68 10 66  
 
PRECIPITATION (IN)  
TODAY 0.00 0.63 1920 0.01 -0.01 0.00  
MONTH TO DATE 0.48 0.17 0.31 0.12  
SINCE JUL 1 4.31 9.33 -5.02 14.63  
SINCE OCT 1 4.31 9.08 -4.77 12.30  
SINCE JAN 1 4.26 6.67 -2.41 11.26  
 
DEGREE DAYS  
HEATING  
TODAY 0 1 -1 0  
MONTH TO DATE 27 30 -3 19  
SINCE MAR 1 355 329 26 397  
SINCE JUL 1 1161 1382 -221 1254  
 
COOLING  
TODAY 13 4 9 1  
MONTH TO DATE 100 70 30 20  
SINCE MAR 1 148 136 12 38  
SINCE JAN 1 162 149 13 41    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION W (270)  
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION W (270)  
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION W (270)  
AVERAGE WIND SPEED 3.5  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 72 4:00 AM  
LOWEST 14 1:00 PM  
AVERAGE 43  
   
......................................................
 
 
THE RIVERSIDE MUNI AIRPORT CA CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 81 99 1967  
2005  
MINIMUM TEMPERATURE (F) 56 38 1903  
1927  
 
SUNRISE AND SUNSET  
MAY 21 2025...........SUNRISE 5:44 AM PDT SUNSET 7:49 PM PDT  
MAY 22 2025...........SUNRISE 5:44 AM PDT SUNSET 7:50 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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