223
CDUS46 KSGX 130040
CLIONT
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA
440 PM PST MON JAN 12 2026
...............................
..THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR JANUARY 12 2026
VALID TODAY AS OF 0400 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 73 2:29 PM 87 2009 68 5 69
MINIMUM 40 5:04 AM 28 2013 45 -5 55
AVERAGE 57 56 1 62
PRECIPITATION (IN)
TODAY 0.00 1.20 2017 0.09 -0.09 0.00
MONTH TO DATE 1.02 1.06 -0.04 T
SINCE JUL 1 8.16 4.34 3.82 0.15
SINCE OCT 1 8.04 4.16 3.88 0.15
SINCE JAN 1 1.02 1.06 -0.04 T
DEGREE DAYS
HEATING
TODAY 8 9 -1 3
MONTH TO DATE 96 112 -16 73
SINCE DEC 1 235 416 -181 269
SINCE JUL 1 346 578 -232 420
COOLING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 1
SINCE DEC 1 9 2 7 6
SINCE JAN 1 0 0 0 1
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION NW (300)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION W (250)
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION SW (240)
AVERAGE WIND SPEED 3.7
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 58 4:00 AM
LOWEST 19 1:00 PM
AVERAGE 39
......................................................
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 68 84 2018
MINIMUM TEMPERATURE (F) 45 29 2013
SUNRISE AND SUNSET
JANUARY 12 2026.......SUNRISE 6:56 AM PST SUNSET 5:02 PM PST
JANUARY 13 2026.......SUNRISE 6:56 AM PST SUNSET 5:03 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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