765  
CDUS46 KSGX 211048  
CLIONT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
248 AM PST FRI NOV 21 2025  
   
...............................  
 
...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR NOVEMBER 20 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 59 11:39 AM 89 2002 73 -14 74  
MINIMUM 47 1:11 AM 39 2022 48 -1 45  
AVERAGE 53 60 -7 60  
 
PRECIPITATION (IN)  
YESTERDAY 0.63 0.82 2010 0.04 0.59 0.00  
MONTH TO DATE 3.44 0.43 3.01 0.04  
SINCE JUL 1 4.64 1.02 3.62 0.10  
SINCE OCT 1 4.52 0.84 3.68 0.10  
SINCE JAN 1 10.71 9.38 1.33 16.39  
 
DEGREE DAYS  
HEATING  
YESTERDAY 12 5 7 5  
MONTH TO DATE 60 67 -7 90  
SINCE SEP 1 74 94 -20 103  
SINCE JUL 1 74 94 -20 103  
 
COOLING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 63 36 27 0  
SINCE SEP 1 615 590 25 653  
SINCE JAN 1 2004 1963 41 2027    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION NE (40)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION NE (40)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION N (20)  
AVERAGE WIND SPEED 4.2  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 10:00 PM  
LOWEST 62 12:00 PM  
AVERAGE 78  
   
......................................................  
 
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 73 90 2017  
MINIMUM TEMPERATURE (F) 47 40 2022  
 
SUNRISE AND SUNSET  
NOVEMBER 21 2025......SUNRISE 6:29 AM PST SUNSET 4:44 PM PST  
NOVEMBER 22 2025......SUNRISE 6:30 AM PST SUNSET 4:43 PM PST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 
 
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