072  
CDUS46 KSGX 311022  
CLIONT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
222 AM PST FRI JAN 31 2025  
   
...............................  
 
   
..THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR JANUARY 30 2025  
 
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)  
YESTERDAY  
MAXIMUM 56 7:49 PM 83 2003 68 -12 78  
MINIMUM 45 11:59 PM 32 2002 45 0 48  
AVERAGE 51 56 -5 63  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.29 2011 0.08 -0.08 0.00  
MONTH TO DATE 0.69 2.48 -1.79 0.78  
SINCE JUL 1 0.84 5.76 -4.92 4.29  
SINCE OCT 1 0.84 5.58 -4.74 2.13  
SINCE JAN 1 0.69 2.48 -1.79 0.78  
 
DEGREE DAYS  
HEATING  
YESTERDAY 14 9 5 2  
MONTH TO DATE 255 274 -19 303  
SINCE DEC 1 451 578 -127 494  
SINCE JUL 1 602 740 -138 587  
 
COOLING  
YESTERDAY 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 2 RESULTANT WIND DIRECTION S (200)  
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION S (190)  
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION SW (210)  
AVERAGE WIND SPEED 2.8  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 1:00 AM  
LOWEST 53 2:00 PM  
AVERAGE 73  
   
......................................................  
 
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 68 90 2003  
MINIMUM TEMPERATURE (F) 45 31 2002  
 
SUNRISE AND SUNSET  
JANUARY 31 2025.......SUNRISE 6:48 AM PST SUNSET 5:20 PM PST  
FEBRUARY 1 2025......SUNRISE 6:47 AM PST SUNSET 5:21 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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