454  
CDUS46 KSGX 210023  
CLIONT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
523 PM PDT THU MAR 20 2025  
   
...............................
 
 
   
..THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR MARCH 20 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 73 2:46 PM 91 2004 72 1 75  
MINIMUM 50 6:06 AM 42 2012 49 1 52  
AVERAGE 62 61 1 64  
 
PRECIPITATION (IN)  
TODAY 0.00 0.23 2011 0.04 -0.04 0.00  
MONTH TO DATE 1.67 1.20 0.47 1.49  
SINCE JUL 1 5.59 10.12 -4.53 17.09  
SINCE OCT 1 5.59 9.94 -4.35 14.93  
SINCE JAN 1 5.44 6.84 -1.40 13.58  
 
DEGREE DAYS  
HEATING  
TODAY 3 5 -2 1  
MONTH TO DATE 201 120 81 157  
SINCE MAR 1 201 120 81 157  
SINCE JUL 1 959 1094 -135 1045  
 
COOLING  
TODAY 0 1 -1 0  
MONTH TO DATE 0 15 -15 0  
SINCE MAR 1 0 15 -15 0  
SINCE JAN 1 19 28 -9 0    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION W (260)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION SW (230)  
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION SW (240)  
AVERAGE WIND SPEED 4.0  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 54 6:00 AM  
LOWEST 20 1:00 PM  
AVERAGE 37  
   
......................................................
 
 
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 72 84 2002  
MINIMUM TEMPERATURE (F) 49 42 2006  
 
SUNRISE AND SUNSET  
MARCH 20 2025.........SUNRISE 6:54 AM PDT SUNSET 7:02 PM PDT  
MARCH 21 2025.........SUNRISE 6:52 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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