172
CDUS46 KSGX 171027
CLIONT
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA
227 AM PST SAT JAN 17 2026
...............................
..THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR JANUARY 16 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 83 2:07 PM 88 2021 68 15 68
MINIMUM 46 6:42 AM 34 2006 45 1 40
2007
AVERAGE 65 56 9 54
PRECIPITATION (IN)
YESTERDAY 0.00 0.71 2019 0.09 -0.09 0.00
MONTH TO DATE 1.02 1.41 -0.39 T
SINCE JUL 1 8.16 4.69 3.47 0.15
SINCE OCT 1 8.04 4.51 3.53 0.15
SINCE JAN 1 1.02 1.41 -0.39 T
DEGREE DAYS
HEATING
YESTERDAY 0 9 -9 11
MONTH TO DATE 99 148 -49 105
SINCE DEC 1 238 452 -214 301
SINCE JUL 1 349 614 -265 452
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 3 0 3 1
SINCE DEC 1 12 2 10 6
SINCE JAN 1 3 0 3 1
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION NW (300)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION NE (50)
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION NE (40)
AVERAGE WIND SPEED 3.4
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 63 7:00 AM
LOWEST 11 7:00 PM
AVERAGE 37
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THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 68 86 2014
MINIMUM TEMPERATURE (F) 45 32 2007
SUNRISE AND SUNSET
JANUARY 17 2026.......SUNRISE 6:55 AM PST SUNSET 5:06 PM PST
JANUARY 18 2026.......SUNRISE 6:55 AM PST SUNSET 5:07 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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