517
CDUS46 KSGX 200026
CLIONT
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA
426 PM PST MON JAN 19 2026
...............................
..THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR JANUARY 19 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 76 3:31 PM 83 2005 68 8 60
MINIMUM 49 5:06 AM 34 2002 45 4 40
AVERAGE 63 56 7 50
PRECIPITATION (IN)
TODAY 0.00 0.84 2010 0.08 -0.08 0.00
MONTH TO DATE 1.02 1.66 -0.64 T
SINCE JUL 1 8.16 4.94 3.22 0.15
SINCE OCT 1 8.04 4.76 3.28 0.15
SINCE JAN 1 1.02 1.66 -0.64 T
DEGREE DAYS
HEATING
TODAY 2 9 -7 15
MONTH TO DATE 104 175 -71 145
SINCE DEC 1 243 479 -236 341
SINCE JUL 1 354 641 -287 492
COOLING
TODAY 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 0 RESULTANT WIND DIRECTION NW (300)
HIGHEST WIND SPEED 8 HIGHEST WIND DIRECTION W (270)
HIGHEST GUST SPEED 10 HIGHEST GUST DIRECTION W (280)
AVERAGE WIND SPEED 1.4
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 57 2:00 AM
LOWEST 21 3:00 PM
AVERAGE 39
......................................................
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 68 84 2014
MINIMUM TEMPERATURE (F) 45 33 1984
2002
SUNRISE AND SUNSET
JANUARY 19 2026.......SUNRISE 6:55 AM PST SUNSET 5:08 PM PST
JANUARY 20 2026.......SUNRISE 6:54 AM PST SUNSET 5:09 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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