532
CDUS46 KSGX 300019
CLIONT
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA
419 PM PST MON DEC 29 2025
...............................
...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR DECEMBER 29 2025...
VALID TODAY AS OF 0400 PM LOCAL TIME.
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)
TODAY
MAXIMUM 71 3:17 PM 84 2017 67 4 69
MINIMUM 42 4:16 AM 32 2015 44 -2 43
AVERAGE 57 55 2 56
PRECIPITATION (IN)
TODAY 0.00 1.22 2004 0.08 -0.08 0.00
MONTH TO DATE 1.63 1.75 -0.12 T
SINCE JUL 1 6.84 3.14 3.70 0.15
SINCE OCT 1 6.72 2.96 3.76 0.15
SINCE JAN 1 12.91 11.50 1.41 16.44
DEGREE DAYS
HEATING
TODAY 8 10 -2 9
MONTH TO DATE 127 281 -154 178
SINCE DEC 1 127 281 -154 178
SINCE JUL 1 238 443 -205 329
COOLING
TODAY 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 11 RESULTANT WIND DIRECTION NE (50)
HIGHEST WIND SPEED 28 HIGHEST WIND DIRECTION N (20)
HIGHEST GUST SPEED 44 HIGHEST GUST DIRECTION NE (60)
AVERAGE WIND SPEED 12.7
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 64 3:00 AM
LOWEST 12 11:00 AM
AVERAGE 38
......................................................
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 67 79 1998
MINIMUM TEMPERATURE (F) 44 34 2010
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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