035  
CDUS46 KSGX 230934  
CLIONT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN DIEGO, CA  
234 AM PDT TUE MAY 23 2023  
   
...............................
 
 
   
..THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR MAY 22 2023
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1998 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 80 3:02 PM 96 2005 80 0 80  
MINIMUM 60 11:59 PM 48 2002 56 4 57  
AVERAGE 70 68 2 69  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.43 2006 0.01 -0.01 0.00  
MONTH TO DATE 0.78 0.26 0.52 T  
SINCE JUL 1 23.98 11.58 12.40 9.51  
SINCE OCT 1 23.68 11.40 12.28 9.02  
SINCE JAN 1 18.44 8.30 10.14 1.40  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 62 31 31 24  
SINCE MAR 1 536 308 228 232  
SINCE JUL 1 1897 1282 615 1149  
 
COOLING  
YESTERDAY 5 4 1 4  
MONTH TO DATE 56 78 -22 75  
SINCE MAR 1 105 158 -53 196  
SINCE JAN 1 105 171 -66 226    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION SW (240)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION W (250)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION SW (230)  
AVERAGE WIND SPEED 6.9  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 12:00 AM  
LOWEST 52 1:00 PM  
AVERAGE 73  
   
......................................................
 
 
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 81 97 2001  
MINIMUM TEMPERATURE (F) 57 50 2010  
 
SUNRISE AND SUNSET  
MAY 23 2023...........SUNRISE 5:44 AM PDT SUNSET 7:51 PM PDT  
MAY 24 2023...........SUNRISE 5:43 AM PDT SUNSET 7:52 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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