597
CDUS46 KSGX 061052
CLIONT
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA
252 AM PST SAT DEC 06 2025
...............................
..THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR DECEMBER 5 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 72 2:17 PM 84 2023 68 4 74
MINIMUM 41 6:06 AM 34 2011 44 -3 45
AVERAGE 57 56 1 60
PRECIPITATION (IN)
YESTERDAY 0.00 0.62 2018 0.05 -0.05 0.00
MONTH TO DATE 0.00 0.25 -0.25 0.00
SINCE JUL 1 5.21 1.64 3.57 0.15
SINCE OCT 1 5.09 1.46 3.63 0.15
SINCE JAN 1 11.28 10.00 1.28 16.44
DEGREE DAYS
HEATING
YESTERDAY 8 9 -1 5
MONTH TO DATE 34 43 -9 24
SINCE DEC 1 34 43 -9 24
SINCE JUL 1 145 205 -60 175
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
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WIND (MPH)
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION W (280)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION W (280)
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION W (270)
AVERAGE WIND SPEED 3.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 49 2:00 AM
LOWEST 18 1:00 PM
AVERAGE 34
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THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 68 82 2024
MINIMUM TEMPERATURE (F) 44 32 2011
SUNRISE AND SUNSET
DECEMBER 6 2025......SUNRISE 6:42 AM PST SUNSET 4:41 PM PST
DECEMBER 7 2025......SUNRISE 6:43 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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