476  
CDUS46 KSGX 211025  
CLIONT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
225 AM PST SAT DEC 21 2024  
   
...............................  
 
...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR DECEMBER 20 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 78 2:47 PM 82 2020 66 12 68  
MINIMUM 51 11:47 PM 33 2012 43 8 55  
AVERAGE 65 55 10 62  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.69 2002 0.06 -0.06 0.36  
MONTH TO DATE 0.00 1.15 -1.15 0.47  
SINCE JUL 1 0.15 2.54 -2.39 3.00  
SINCE OCT 1 0.15 2.36 -2.21 0.84  
SINCE JAN 1 16.44 10.90 5.54 21.24  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 10 -10 3  
MONTH TO DATE 100 191 -91 109  
SINCE DEC 1 100 191 -91 109  
SINCE JUL 1 251 353 -102 202  
 
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 W (260)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION W (270)  
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION SW (220)  
AVERAGE WIND SPEED 2.0  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 69 10:00 PM  
LOWEST 15 1:00 PM  
AVERAGE 42  
   
......................................................  
 
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 66 82 2005  
2020  
MINIMUM TEMPERATURE (F) 43 33 2012  
 
SUNRISE AND SUNSET  
DECEMBER 21 2024......SUNRISE 6:52 AM PST SUNSET 4:45 PM PST  
DECEMBER 22 2024......SUNRISE 6:53 AM PST SUNSET 4:46 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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