433  
CDUS46 KSGX 310930  
CLIONT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
230 AM PDT FRI MAY 31 2024  
   
...............................  
 
   
..THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR MAY 30 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 83 2:34 PM 94 2004 82 1 69  
MINIMUM 55 4:44 AM 49 1998 57 -2 57  
AVERAGE 69 70 -1 63  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 T 2004 0.01 -0.01 T  
2018  
2023  
MONTH TO DATE 0.15 0.30 -0.15 0.78  
SINCE JUL 1 19.80 11.62 8.18 23.78  
SINCE OCT 1 17.64 11.44 6.20 23.48  
SINCE JAN 1 16.29 8.34 7.95 18.24  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 2  
MONTH TO DATE 34 37 -3 73  
SINCE MAR 1 424 314 110 547  
SINCE JUL 1 1312 1288 24 1908  
 
COOLING  
YESTERDAY 4 5 -1 0  
MONTH TO DATE 32 114 -82 56  
SINCE MAR 1 57 194 -137 105  
SINCE JAN 1 57 207 -150 105    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION SW (240)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION W (260)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION W (260)  
AVERAGE WIND SPEED 6.9  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 83 6:00 AM  
LOWEST 32 2:00 PM  
AVERAGE 58  
   
......................................................  
 
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 82 96 2006  
MINIMUM TEMPERATURE (F) 57 52 1998  
 
SUNRISE AND SUNSET  
MAY 31 2024...........SUNRISE 5:40 AM PDT SUNSET 7:57 PM PDT  
JUNE 1 2024..........SUNRISE 5:40 AM PDT SUNSET 7:57 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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