397  
CDUS46 KSGX 220042  
CLIONT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
442 PM PST TUE JAN 21 2025  
   
...............................
 
 
   
..THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR JANUARY 21 2025
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1998 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 70 3:59 PM 82 2013 68 2 62  
MINIMUM 44 5:18 AM 33 2006 45 -1 52  
AVERAGE 57 56 1 57  
 
PRECIPITATION (IN)  
TODAY 0.00 1.25 2010 0.08 -0.08 0.03  
MONTH TO DATE T 1.83 -1.83 0.77  
SINCE JUL 1 0.15 5.11 -4.96 4.28  
SINCE OCT 1 0.15 4.93 -4.78 2.12  
SINCE JAN 1 T 1.83 -1.83 0.77  
 
DEGREE DAYS  
HEATING  
TODAY 8 9 -1 8  
MONTH TO DATE 164 193 -29 260  
SINCE DEC 1 360 497 -137 451  
SINCE JUL 1 511 659 -148 544  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 1 0 1 0  
SINCE DEC 1 6 2 4 2  
SINCE JAN 1 1 0 1 0    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION N (10)  
HIGHEST WIND SPEED 30 HIGHEST WIND DIRECTION NE (50)  
HIGHEST GUST SPEED 46 HIGHEST GUST DIRECTION NE (50)  
AVERAGE WIND SPEED 10.1  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 15 12:00 AM  
LOWEST 6 3:00 AM  
AVERAGE 11  
   
......................................................
 
 
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 68 81 2013  
MINIMUM TEMPERATURE (F) 45 36 2013  
2018  
2023  
 
SUNRISE AND SUNSET  
JANUARY 21 2025.......SUNRISE 6:54 AM PST SUNSET 5:10 PM PST  
JANUARY 22 2025.......SUNRISE 6:53 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.  
 

 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab CA Page Main Text Page