430  
CDUS46 KSGX 170921  
CLIONT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
221 AM PDT FRI MAY 17 2024  
   
...............................
 
 
   
..THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR MAY 16 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 70 2:42 PM 100 2008 80 -10 85  
MINIMUM 55 4:54 AM 46 2011 56 -1 57  
AVERAGE 63 68 -5 71  
 
PRECIPITATION (IN)  
YESTERDAY T R T 2016 0.01 -0.01 0.00  
2021  
MONTH TO DATE 0.15 0.21 -0.06 0.78  
SINCE JUL 1 19.80 11.53 8.27 23.78  
SINCE OCT 1 17.64 11.35 6.29 23.48  
SINCE JAN 1 16.29 8.25 8.04 18.24  
 
DEGREE DAYS  
HEATING  
YESTERDAY 2 1 1 0  
MONTH TO DATE 20 25 -5 62  
SINCE MAR 1 410 302 108 536  
SINCE JUL 1 1298 1276 22 1897  
 
COOLING  
YESTERDAY 0 4 -4 6  
MONTH TO DATE 20 54 -34 27  
SINCE MAR 1 45 134 -89 76  
SINCE JAN 1 45 147 -102 76    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION SW (240)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION W (260)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION SW (220)  
AVERAGE WIND SPEED 6.1  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 89 5:00 AM  
LOWEST 51 3:00 PM  
AVERAGE 70  
   
......................................................
 
 
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 80 102 2008  
MINIMUM TEMPERATURE (F) 56 45 2006  
 
SUNRISE AND SUNSET  
MAY 17 2024...........SUNRISE 5:47 AM PDT SUNSET 7:47 PM PDT  
MAY 18 2024...........SUNRISE 5:46 AM PDT SUNSET 7:48 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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