920
CDUS46 KSGX 010023
CLIONT
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA
423 PM PST WED DEC 31 2025
...............................
...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR DECEMBER 31 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 64 10:47 AM 79 2011 67 -3 66
MINIMUM 56 3:49 PM 30 2010 44 12 44
AVERAGE 60 55 5 55
PRECIPITATION (IN)
TODAY 0.08 1.21 2022 0.07 0.01 0.00
MONTH TO DATE 1.71 1.89 -0.18 T
SINCE JUL 1 6.92 3.28 3.64 0.15
SINCE OCT 1 6.80 3.10 3.70 0.15
SINCE JAN 1 12.99 11.64 1.35 16.44
DEGREE DAYS
HEATING
TODAY 5 10 -5 10
MONTH TO DATE 138 301 -163 196
SINCE DEC 1 138 301 -163 196
SINCE JUL 1 249 463 -214 347
COOLING
TODAY 0 0 0 0
MONTH TO DATE 9 2 7 5
SINCE DEC 1 9 2 7 5
SINCE JAN 1 2014 1969 45 2032
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION N (10)
HIGHEST WIND SPEED 7 HIGHEST WIND DIRECTION S (160)
HIGHEST GUST SPEED 11 HIGHEST GUST DIRECTION NE (50)
AVERAGE WIND SPEED 1.8
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 87 3:00 PM
LOWEST 34 2:00 AM
AVERAGE 61
......................................................
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 67 84 2012
MINIMUM TEMPERATURE (F) 44 31 2015
2016
SUNRISE AND SUNSET
DECEMBER 31 2025......SUNRISE 6:56 AM PST SUNSET 4:52 PM PST
JANUARY 1 2026.......SUNRISE 6:56 AM PST SUNSET 4:52 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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