708
CDUS46 KSGX 191031
CLIONT
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA
231 AM PST MON JAN 19 2026
...............................
..THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR JANUARY 18 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 78 3:13 PM 83 2014 68 10 63
MINIMUM 46 3:07 AM 35 2007 45 1 44
AVERAGE 62 56 6 54
PRECIPITATION (IN)
YESTERDAY 0.00 1.35 2010 0.09 -0.09 0.00
MONTH TO DATE 1.02 1.58 -0.56 T
SINCE JUL 1 8.16 4.86 3.30 0.15
SINCE OCT 1 8.04 4.68 3.36 0.15
SINCE JAN 1 1.02 1.58 -0.56 T
DEGREE DAYS
HEATING
YESTERDAY 3 9 -6 11
MONTH TO DATE 102 166 -64 130
SINCE DEC 1 241 470 -229 326
SINCE JUL 1 352 632 -280 477
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 0 RESULTANT WIND DIRECTION NW (330)
HIGHEST WIND SPEED 8 HIGHEST WIND DIRECTION SW (240)
HIGHEST GUST SPEED 13 HIGHEST GUST DIRECTION SW (240)
AVERAGE WIND SPEED 2.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 48 5:00 AM
LOWEST 16 2:00 PM
AVERAGE 32
......................................................
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 68 83 2005
MINIMUM TEMPERATURE (F) 45 34 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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