149
CDUS46 KSGX 081028
CLIONT
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA
228 AM PST MON DEC 08 2025
...............................
..THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR DECEMBER 7 2025
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 77 3:28 PM 82 2006 68 9 80
MINIMUM 46 5:23 AM 32 2011 44 2 47
AVERAGE 62 56 6 64
PRECIPITATION (IN)
YESTERDAY 0.00 1.07 2009 0.06 -0.06 0.00
MONTH TO DATE 0.00 0.36 -0.36 0.00
SINCE JUL 1 5.21 1.75 3.46 0.15
SINCE OCT 1 5.09 1.57 3.52 0.15
SINCE JAN 1 11.28 10.11 1.17 16.44
DEGREE DAYS
HEATING
YESTERDAY 3 9 -6 1
MONTH TO DATE 45 61 -16 26
SINCE DEC 1 45 61 -16 26
SINCE JUL 1 156 223 -67 177
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 2005 1967 38 2027
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 0 RESULTANT WIND DIRECTION W (290)
HIGHEST WIND SPEED 6 HIGHEST WIND DIRECTION W (250)
HIGHEST GUST SPEED 9 HIGHEST GUST DIRECTION SW (220)
AVERAGE WIND SPEED 1.4
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 71 7:00 AM
LOWEST 23 4:00 PM
AVERAGE 47
......................................................
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 67 83 2015
2017
MINIMUM TEMPERATURE (F) 44 33 1998
SUNRISE AND SUNSET
DECEMBER 8 2025......SUNRISE 6:44 AM PST SUNSET 4:41 PM PST
DECEMBER 9 2025......SUNRISE 6:45 AM PST SUNSET 4:41 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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