098
CDUS46 KSGX 101022
CLIONT
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA
222 AM PST WED DEC 10 2025
...............................
..THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR DECEMBER 9 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 81 3:15 PM 84 2017 67 14 75
MINIMUM 49 3:02 AM 35 2013 44 5 44
AVERAGE 65 55 10 60
PRECIPITATION (IN)
YESTERDAY 0.00 0.29 2006 0.06 -0.06 0.00
MONTH TO DATE 0.00 0.48 -0.48 0.00
SINCE JUL 1 5.21 1.87 3.34 0.15
SINCE OCT 1 5.09 1.69 3.40 0.15
SINCE JAN 1 11.28 10.23 1.05 16.44
DEGREE DAYS
HEATING
YESTERDAY 0 10 -10 5
MONTH TO DATE 45 81 -36 37
SINCE DEC 1 45 81 -36 37
SINCE JUL 1 156 243 -87 188
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 2005 1967 38 2027
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 0 RESULTANT WIND DIRECTION NE (50)
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION N (20)
HIGHEST GUST SPEED 11 HIGHEST GUST DIRECTION SW (240)
AVERAGE WIND SPEED 2.1
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 54 2:00 AM
LOWEST 14 3:00 PM
AVERAGE 34
......................................................
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 67 85 2017
MINIMUM TEMPERATURE (F) 44 31 2013
SUNRISE AND SUNSET
DECEMBER 10 2025......SUNRISE 6:45 AM PST SUNSET 4:41 PM PST
DECEMBER 11 2025......SUNRISE 6:46 AM PST SUNSET 4:42 PM PST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page