524  
CDUS46 KSGX 221038  
CLIONT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
238 AM PST SUN DEC 22 2024  
   
...............................
 
 
...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR DECEMBER 21 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 72 1:09 PM 82 2005 66 6 68  
2020  
MINIMUM 45 6:39 AM 33 2012 43 2 55  
AVERAGE 59 55 4 62  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 2.84 2010 0.06 -0.06 T  
MONTH TO DATE 0.00 1.21 -1.21 0.47  
SINCE JUL 1 0.15 2.60 -2.45 3.00  
SINCE OCT 1 0.15 2.42 -2.27 0.84  
SINCE JAN 1 16.44 10.96 5.48 21.24  
 
DEGREE DAYS  
HEATING  
YESTERDAY 6 10 -4 3  
MONTH TO DATE 106 201 -95 112  
SINCE DEC 1 106 201 -95 112  
SINCE JUL 1 257 363 -106 205  
 
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 2 RESULTANT WIND DIRECTION SW (240)  
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION W (260)  
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION W (260)  
AVERAGE WIND SPEED 2.3  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 72 10:00 PM  
LOWEST 29 1:00 PM  
AVERAGE 51  
   
......................................................
 
 
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 66 77 2014  
MINIMUM TEMPERATURE (F) 43 28 1998  
 
SUNRISE AND SUNSET  
DECEMBER 22 2024......SUNRISE 6:53 AM PST SUNSET 4:46 PM PST  
DECEMBER 23 2024......SUNRISE 6:53 AM PST SUNSET 4:47 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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