175  
CDUS46 KSGX 102318  
CLIONT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
418 PM PDT SUN SEP 10 2023  
   
...............................
 
 
...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR SEPTEMBER 10 2023...  
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 96 2:41 PM 100 2015 93 3 80  
2017  
2021  
MINIMUM 71 8:35 AM 55 2008 65 6 70  
AVERAGE 84 79 5 75  
 
PRECIPITATION (IN)  
TODAY 0.03R T 2022 0.00 0.03 T  
MONTH TO DATE 0.22 0.02 0.20 0.13  
SINCE JUL 1 2.14 0.10 2.04 0.16  
SINCE OCT 1 25.82 11.56 14.26 9.18  
SINCE JAN 1 20.58 8.46 12.12 1.56  
 
DEGREE DAYS  
HEATING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE SEP 1 0 0 0 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
TODAY 19 14 5 10  
MONTH TO DATE 126 145 -19 241  
SINCE SEP 1 126 145 -19 241  
SINCE JAN 1 1314 1518 -204 1863    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION W (250)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION SW (210)  
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION SW (220)  
AVERAGE WIND SPEED 4.3  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 82 8:00 AM  
LOWEST 36 2:00 PM  
AVERAGE 59  
   
......................................................
 
 
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 93 101 2017  
2021  
MINIMUM TEMPERATURE (F) 65 57 1999  
 
SUNRISE AND SUNSET  
SEPTEMBER 10 2023.....SUNRISE 6:30 AM PDT SUNSET 7:04 PM PDT  
SEPTEMBER 11 2023.....SUNRISE 6:31 AM PDT SUNSET 7:03 PM PDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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