134
CDUS46 KSGX 281019
CLIONT
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA
219 AM PST WED JAN 28 2026
...............................
..THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR JANUARY 27 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 74 3:04 PM 80 2024 68 6 57
MINIMUM 37R 6:14 AM 37 2022 45 -8 45
AVERAGE 56 56 0 51
PRECIPITATION (IN)
YESTERDAY 0.00 1.07 2008 0.06 -0.06 T
MONTH TO DATE 1.02 2.25 -1.23 0.69
SINCE JUL 1 8.16 5.53 2.63 0.84
SINCE OCT 1 8.04 5.35 2.69 0.84
SINCE JAN 1 1.02 2.25 -1.23 0.69
DEGREE DAYS
HEATING
YESTERDAY 9 9 0 14
MONTH TO DATE 162 247 -85 214
SINCE DEC 1 301 551 -250 410
SINCE JUL 1 412 713 -301 561
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
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WIND (MPH)
RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION NE (50)
HIGHEST WIND SPEED 8 HIGHEST WIND DIRECTION W (270)
HIGHEST GUST SPEED 11 HIGHEST GUST DIRECTION SW (220)
AVERAGE WIND SPEED 2.2
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 47 11:00 PM
LOWEST 10 3:00 PM
AVERAGE 29
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THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 68 84 2018
MINIMUM TEMPERATURE (F) 45 36 1999
SUNRISE AND SUNSET
JANUARY 28 2026.......SUNRISE 6:50 AM PST SUNSET 5:17 PM PST
JANUARY 29 2026.......SUNRISE 6:49 AM PST SUNSET 5:18 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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