743  
CDUS46 KSGX 250936  
CLIONT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
236 AM PDT FRI APR 25 2025  
   
...............................  
 
   
..THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR APRIL 24 2025  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1998 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 70 4:18 PM 97 2020 77 -7 67  
MINIMUM 54 5:34 AM 47 2006 52 2 53  
AVERAGE 62 65 -3 60  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.21 2002 0.02 -0.02 0.00  
MONTH TO DATE 0.01 0.66 -0.65 0.55  
SINCE JUL 1 5.62 11.22 -5.60 19.64  
SINCE OCT 1 5.62 11.04 -5.42 17.48  
SINCE JAN 1 5.47 7.94 -2.47 16.13  
 
DEGREE DAYS  
HEATING  
YESTERDAY 3 3 0 5  
MONTH TO DATE 77 88 -11 119  
SINCE MAR 1 314 260 54 375  
SINCE JUL 1 1072 1234 -162 1263  
 
COOLING  
YESTERDAY 0 3 -3 0  
MONTH TO DATE 43 39 4 21  
SINCE MAR 1 56 62 -6 21  
SINCE JAN 1 75 75 0 21    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION SW (240)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION W (270)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION W (260)  
AVERAGE WIND SPEED 7.6  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 83 12:00 AM  
LOWEST 45 3:00 PM  
AVERAGE 64  
   
......................................................  
 
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 77 96 2004  
MINIMUM TEMPERATURE (F) 53 49 2010  
2016  
 
SUNRISE AND SUNSET  
APRIL 25 2025.........SUNRISE 6:07 AM PDT SUNSET 7:30 PM PDT  
APRIL 26 2025.........SUNRISE 6:06 AM PDT SUNSET 7:31 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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