960  
CDUS46 KSGX 291021  
CLIONT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
221 AM PST SUN DEC 29 2024  
   
...............................
 
 
...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR DECEMBER 28 2024...  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1998 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 66 3:46 PM 84 2017 67 -1 68  
MINIMUM 46 7:57 AM 31 2003 44 2 50  
2015  
AVERAGE 56 55 1 59  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.80 2020 0.07 -0.07 0.00  
MONTH TO DATE T 1.67 -1.67 0.83  
SINCE JUL 1 0.15 3.06 -2.91 3.36  
SINCE OCT 1 0.15 2.88 -2.73 1.20  
SINCE JAN 1 16.44 11.42 5.02 21.60  
 
DEGREE DAYS  
HEATING  
YESTERDAY 9 10 -1 6  
MONTH TO DATE 169 271 -102 165  
SINCE DEC 1 169 271 -102 165  
SINCE JUL 1 320 433 -113 258  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 5 0 5 2  
SINCE DEC 1 5 0 5 2  
SINCE JAN 1 2032 1967 65 1695    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION SW (230)  
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION W (270)  
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION SW (240)  
AVERAGE WIND SPEED 1.6  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 5:00 AM  
LOWEST 52 3:00 PM  
AVERAGE 73  
   
......................................................
 
 
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 67 84 2017  
MINIMUM TEMPERATURE (F) 44 32 2015  
 
SUNRISE AND SUNSET  
DECEMBER 29 2024......SUNRISE 6:55 AM PST SUNSET 4:50 PM PST  
DECEMBER 30 2024......SUNRISE 6:56 AM PST SUNSET 4:51 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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