429
CDUS46 KSGX 050022
CLIONT
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA
422 PM PST THU DEC 04 2025
...............................
..THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR DECEMBER 4 2025
VALID TODAY AS OF 0400 PM LOCAL TIME.
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)
TODAY
MAXIMUM 68 1:06 PM 81 2007 68 0 69
MINIMUM 54 7:39 AM 34 2011 44 10 46
AVERAGE 61 56 5 58
PRECIPITATION (IN)
TODAY 0.00 0.95 2019 0.05 -0.05 0.00
MONTH TO DATE 0.00 0.20 -0.20 0.00
SINCE JUL 1 5.21 1.59 3.62 0.15
SINCE OCT 1 5.09 1.41 3.68 0.15
SINCE JAN 1 11.28 9.95 1.33 16.44
DEGREE DAYS
HEATING
TODAY 4 9 -5 7
MONTH TO DATE 23 34 -11 19
SINCE DEC 1 23 34 -11 19
SINCE JUL 1 134 196 -62 170
COOLING
TODAY 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 3 RESULTANT WIND DIRECTION NE (40)
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION NE (50)
HIGHEST GUST SPEED 38 HIGHEST GUST DIRECTION NE (60)
AVERAGE WIND SPEED 8.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 25 8:00 AM
LOWEST 19 5:00 AM
AVERAGE 22
......................................................
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 68 84 2023
MINIMUM TEMPERATURE (F) 44 34 2011
SUNRISE AND SUNSET
DECEMBER 4 2025......SUNRISE 6:41 AM PST SUNSET 4:41 PM PST
DECEMBER 5 2025......SUNRISE 6:41 AM PST SUNSET 4:41 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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