965
CDUS46 KSGX 291020
CLIONT
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA
220 AM PST MON DEC 29 2025
...............................
...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR DECEMBER 28 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 66 3:11 PM 84 2017 67 -1 66
MINIMUM 41 7:17 AM 31 2003 44 -3 46
2015
AVERAGE 54 55 -1 56
PRECIPITATION (IN)
YESTERDAY 0.00 1.80 2020 0.07 -0.07 0.00
MONTH TO DATE 1.63 1.67 -0.04 T
SINCE JUL 1 6.84 3.06 3.78 0.15
SINCE OCT 1 6.72 2.88 3.84 0.15
SINCE JAN 1 12.91 11.42 1.49 16.44
DEGREE DAYS
HEATING
YESTERDAY 11 10 1 9
MONTH TO DATE 119 271 -152 169
SINCE DEC 1 119 271 -152 169
SINCE JUL 1 230 433 -203 320
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 9 0 9 5
SINCE DEC 1 9 0 9 5
SINCE JAN 1 2014 1967 47 2032
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION NW (300)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION NE (50)
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION NE (40)
AVERAGE WIND SPEED 3.2
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 93 1:00 AM
LOWEST 18 10:00 PM
AVERAGE 56
......................................................
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 67 84 2017
MINIMUM TEMPERATURE (F) 44 32 2015
SUNRISE AND SUNSET
DECEMBER 29 2025......SUNRISE 6:55 AM PST SUNSET 4:50 PM PST
DECEMBER 30 2025......SUNRISE 6:56 AM PST SUNSET 4:51 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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