793  
CDUS46 KSGX 090943  
CLIONT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
143 AM PST THU JAN 09 2025  
   
...............................  
 
   
..THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR JANUARY 8 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 66 3:49 PM 87 1962 68 -2 59  
2007  
MINIMUM 48 11:03 PM 33 2000 44 4 34  
AVERAGE 57 56 1 47  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.67 2005 0.08 -0.08 0.00  
MONTH TO DATE T 0.71 -0.71 0.44  
SINCE JUL 1 0.15 3.99 -3.84 3.95  
SINCE OCT 1 0.15 3.81 -3.66 1.79  
SINCE JAN 1 T 0.71 -0.71 0.44  
 
DEGREE DAYS  
HEATING  
YESTERDAY 8 9 -1 18  
MONTH TO DATE 49 76 -27 111  
SINCE DEC 1 245 380 -135 302  
SINCE JUL 1 396 542 -146 395  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 1 0 1 0  
SINCE DEC 1 6 2 4 2  
SINCE JAN 1 1 0 1 0    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 23 RESULTANT WIND DIRECTION NE (40)  
HIGHEST WIND SPEED 43 HIGHEST WIND DIRECTION N (20)  
HIGHEST GUST SPEED 66 HIGHEST GUST DIRECTION NE (30)  
AVERAGE WIND SPEED 21.9  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
SANDSTORM  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 21 11:00 PM  
LOWEST 15 1:00 PM  
AVERAGE 18  
   
......................................................  
 
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 68 83 2007  
MINIMUM TEMPERATURE (F) 44 36 2000  
 
SUNRISE AND SUNSET  
JANUARY 9 2025.......SUNRISE 6:57 AM PST SUNSET 4:59 PM PST  
JANUARY 10 2025.......SUNRISE 6:57 AM PST SUNSET 5:00 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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