207
CDUS46 KSGX 051030
CLIONT
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA
230 AM PST FRI DEC 05 2025
...............................
..THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR DECEMBER 4 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 68 1:06 PM 81 2007 68 0 69
MINIMUM 48 11:00 PM 34 2011 44 4 46
AVERAGE 58 56 2 58
PRECIPITATION (IN)
YESTERDAY 0.00 0.95 2019 0.05 -0.05 0.00
MONTH TO DATE 0.00 0.20 -0.20 0.00
SINCE JUL 1 5.21 1.59 3.62 0.15
SINCE OCT 1 5.09 1.41 3.68 0.15
SINCE JAN 1 11.28 9.95 1.33 16.44
DEGREE DAYS
HEATING
YESTERDAY 7 9 -2 7
MONTH TO DATE 26 34 -8 19
SINCE DEC 1 26 34 -8 19
SINCE JUL 1 137 196 -59 170
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 2 RESULTANT WIND DIRECTION NE (30)
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION NE (50)
HIGHEST GUST SPEED 38 HIGHEST GUST DIRECTION NE (60)
AVERAGE WIND SPEED 6.2
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 50 11:00 PM
LOWEST 19 5:00 AM
AVERAGE 35
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THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 68 84 2023
MINIMUM TEMPERATURE (F) 44 34 2011
SUNRISE AND SUNSET
DECEMBER 5 2025......SUNRISE 6:41 AM PST SUNSET 4:41 PM PST
DECEMBER 6 2025......SUNRISE 6:42 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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