368  
CDUS46 KSGX 251035  
CLIONT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
235 AM PST MON DEC 25 2023  
   
...............................
 
 
...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR DECEMBER 24 2023...  
 
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)  
YESTERDAY  
MAXIMUM 65 3:44 PM 86 2005 66 -1 77  
MINIMUM 48 1:58 AM 29 1998 43 5 44  
AVERAGE 57 55 2 61  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.78 2021 0.06 -0.06 0.00  
MONTH TO DATE 0.83 1.39 -0.56 1.35  
SINCE JUL 1 3.36 2.78 0.58 4.04  
SINCE OCT 1 1.20 2.60 -1.40 3.74  
SINCE JAN 1 21.80 11.14 10.66 5.44  
 
DEGREE DAYS  
HEATING  
YESTERDAY 8 10 -2 4  
MONTH TO DATE 136 231 -95 304  
SINCE DEC 1 136 231 -95 304  
SINCE JUL 1 229 393 -164 530  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 2 0 2 0  
SINCE DEC 1 2 0 2 0  
SINCE JAN 1 1695 1967 -272 2301    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION E (70)  
HIGHEST WIND SPEED 8 HIGHEST WIND DIRECTION SW (240)  
HIGHEST GUST SPEED 11 HIGHEST GUST DIRECTION SW (240)  
AVERAGE WIND SPEED 2.1  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 3:00 AM  
LOWEST 50 3:00 PM  
AVERAGE 70  
   
......................................................
 
 
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 66 82 2013  
MINIMUM TEMPERATURE (F) 43 31 1998  
2016  
 
SUNRISE AND SUNSET  
DECEMBER 25 2023......SUNRISE 6:54 AM PST SUNSET 4:47 PM PST  
DECEMBER 26 2023......SUNRISE 6:54 AM PST SUNSET 4:48 PM PST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab CA Page Main Text Page