376  
CDUS46 KSGX 020022  
CLIONT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
422 PM PST MON JAN 01 2024  
   
...............................
 
 
   
..THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR JANUARY 1 2024
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1998 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 66 2:40 PM 84 2012 67 -1 57  
MINIMUM 43 7:21 AM 31 2015 44 -1 45  
2016  
AVERAGE 55 55 0 51  
 
PRECIPITATION (IN)  
TODAY 0.00 0.22 2023 0.09 -0.09 0.02  
MONTH TO DATE 0.00 0.09 -0.09 0.02  
SINCE JUL 1 3.51 3.37 0.14 5.56  
SINCE OCT 1 1.35 3.19 -1.84 5.26  
SINCE JAN 1 0.00 0.09 -0.09 0.02  
 
DEGREE DAYS  
HEATING  
TODAY 10 10 0 14  
MONTH TO DATE 10 10 0 14  
SINCE DEC 1 201 314 -113 365  
SINCE JUL 1 294 476 -182 591  
 
COOLING  
TODAY 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 2 RESULTANT WIND DIRECTION N (20)  
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION N (20)  
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION N (20)  
AVERAGE WIND SPEED 3.1  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 83 2:00 AM  
LOWEST 29 3:00 PM  
AVERAGE 56  
   
......................................................
 
 
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 67 84 2012  
MINIMUM TEMPERATURE (F) 44 30 2015  
 
SUNRISE AND SUNSET  
JANUARY 1 2024.......SUNRISE 6:56 AM PST SUNSET 4:52 PM PST  
JANUARY 2 2024.......SUNRISE 6:56 AM PST SUNSET 4:53 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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