636
CDUS46 KSGX 021050
CLIONT
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA
250 AM PST FRI JAN 02 2026
...............................
..THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR JANUARY 1 2026
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)
YESTERDAY
MAXIMUM 63 4:15 PM 84 2012 67 -4 75
MINIMUM 52 11:20 PM 31 2015 44 8 42
2016
AVERAGE 58 55 3 59
PRECIPITATION (IN)
YESTERDAY 0.86R 0.22 2023 0.09 0.77 0.00
MONTH TO DATE 0.86 0.09 0.77 0.00
SINCE JUL 1 8.00 3.37 4.63 0.15
SINCE OCT 1 7.88 3.19 4.69 0.15
SINCE JAN 1 0.86 0.09 0.77 0.00
DEGREE DAYS
HEATING
YESTERDAY 7 10 -3 6
MONTH TO DATE 7 10 -3 6
SINCE DEC 1 146 314 -168 202
SINCE JUL 1 257 476 -219 353
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 9 2 7 5
SINCE JAN 1 0 0 0 0
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION SE (140)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION SW (220)
HIGHEST GUST SPEED 13 HIGHEST GUST DIRECTION SW (220)
AVERAGE WIND SPEED 3.0
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 9:00 PM
LOWEST 78 4:00 PM
AVERAGE 89
......................................................
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 67 85 2025
MINIMUM TEMPERATURE (F) 44 30 2015
SUNRISE AND SUNSET
JANUARY 2 2026.......SUNRISE 6:56 AM PST SUNSET 4:53 PM PST
JANUARY 3 2026.......SUNRISE 6:56 AM PST SUNSET 4:54 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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