782  
CDUS46 KSGX 211033  
CLIONT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
233 AM PST SUN JAN 21 2024  
   
...............................
 
 
   
..THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR JANUARY 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 59 9:50 AM 84 2014 68 -9 58  
MINIMUM 52 1:48 PM 33 1984 45 7 36  
2002  
AVERAGE 56 56 0 47  
 
PRECIPITATION (IN)  
YESTERDAY MM 1.36 2017 0.09 MM 0.00  
MONTH TO DATE 0.44 1.75 -1.31 5.82  
SINCE JUL 1 3.95 5.03 -1.08 11.36  
SINCE OCT 1 1.79 4.85 -3.06 11.06  
SINCE JAN 1 0.44 1.75 -1.31 5.82  
 
DEGREE DAYS  
HEATING  
YESTERDAY 9 9 0 18  
MONTH TO DATE 252 184 68 263  
SINCE DEC 1 443 488 -45 614  
SINCE JUL 1 536 650 -114 840  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 2 2 0 0  
SINCE JAN 1 0 0 0 0    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION NE (60)  
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION W (270)  
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION E (70)  
AVERAGE WIND SPEED 3.3  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 11:00 PM  
LOWEST 51 10:00 AM  
AVERAGE 71  
   
......................................................
 
 
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 68 82 2013  
MINIMUM TEMPERATURE (F) 45 33 2006  
 
SUNRISE AND SUNSET  
JANUARY 21 2024.......SUNRISE 6:54 AM PST SUNSET 5:10 PM PST  
JANUARY 22 2024.......SUNRISE 6:54 AM PST SUNSET 5:11 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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