303
CDUS46 KSGX 231048
CLIONT
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA
248 AM PST TUE DEC 23 2025
...............................
...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR DECEMBER 22 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 76 2:18 PM 77 2014 66 10 67
MINIMUM 50 5:15 AM 28 1998 43 7 49
AVERAGE 63 55 8 58
PRECIPITATION (IN)
YESTERDAY 0.00 1.21 2010 0.05 -0.05 0.00
MONTH TO DATE 0.00 1.26 -1.26 0.00
SINCE JUL 1 5.21 2.65 2.56 0.15
SINCE OCT 1 5.09 2.47 2.62 0.15
SINCE JAN 1 11.28 11.01 0.27 16.44
DEGREE DAYS
HEATING
YESTERDAY 2 10 -8 7
MONTH TO DATE 69 211 -142 113
SINCE DEC 1 69 211 -142 113
SINCE JUL 1 180 373 -193 264
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 9 0 9 5
SINCE DEC 1 9 0 9 5
SINCE JAN 1 2014 1967 47 2032
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WIND (MPH)
RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION SW (240)
HIGHEST WIND SPEED 8 HIGHEST WIND DIRECTION NW (320)
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION NW (320)
AVERAGE WIND SPEED 1.5
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 83 10:00 PM
LOWEST 34 3:00 PM
AVERAGE 59
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THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 66 81 2014
MINIMUM TEMPERATURE (F) 43 28 1998
SUNRISE AND SUNSET
DECEMBER 23 2025......SUNRISE 6:53 AM PST SUNSET 4:46 PM PST
DECEMBER 24 2025......SUNRISE 6:54 AM PST SUNSET 4:47 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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