520  
CDUS46 KSGX 240922  
CLIONT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
222 AM PDT FRI MAY 24 2024  
   
...............................
 
 
   
..THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR MAY 23 2024
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1998 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 69 2:38 PM 97 2001 81 -12 70  
MINIMUM 55 11:47 PM 50 2010 57 -2 58  
AVERAGE 62 68 -6 64  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.19 2008 0.00 0.00 T  
MONTH TO DATE 0.15 0.26 -0.11 0.78  
SINCE JUL 1 19.80 11.58 8.22 23.78  
SINCE OCT 1 17.64 11.40 6.24 23.48  
SINCE JAN 1 16.29 8.30 7.99 18.24  
 
DEGREE DAYS  
HEATING  
YESTERDAY 3 1 2 1  
MONTH TO DATE 28 32 -4 63  
SINCE MAR 1 418 309 109 537  
SINCE JUL 1 1306 1283 23 1898  
 
COOLING  
YESTERDAY 0 4 -4 0  
MONTH TO DATE 21 82 -61 56  
SINCE MAR 1 46 162 -116 105  
SINCE JAN 1 46 175 -129 105    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION W (250)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION W (280)  
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION SW (240)  
AVERAGE WIND SPEED 7.6  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87 5:00 AM  
LOWEST 47 1:00 PM  
AVERAGE 67  
   
......................................................
 
 
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 81 97 2021  
MINIMUM TEMPERATURE (F) 57 48 2010  
 
SUNRISE AND SUNSET  
MAY 24 2024...........SUNRISE 5:43 AM PDT SUNSET 7:52 PM PDT  
MAY 25 2024...........SUNRISE 5:43 AM PDT SUNSET 7:53 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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