871
CDUS46 KSGX 271021
CLIONT
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA
221 AM PST SAT DEC 27 2025
...............................
...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR DECEMBER 26 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 58 12:29 AM 82 2013 66 -8 66
MINIMUM 52 11:59 PM 32 2008 43 9 46
AVERAGE 55 55 0 56
PRECIPITATION (IN)
YESTERDAY 0.42 1.65 2019 0.07 0.35 0.00
MONTH TO DATE 1.63 1.52 0.11 T
SINCE JUL 1 6.84 2.91 3.93 0.15
SINCE OCT 1 6.72 2.73 3.99 0.15
SINCE JAN 1 12.91 11.27 1.64 16.44
DEGREE DAYS
HEATING
YESTERDAY 10 10 0 9
MONTH TO DATE 96 251 -155 149
SINCE DEC 1 96 251 -155 149
SINCE JUL 1 207 413 -206 300
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
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WIND (MPH)
RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION NE (50)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION SW (210)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION N (20)
AVERAGE WIND SPEED 4.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 11:00 PM
LOWEST 67 12:00 AM
AVERAGE 82
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THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 67 81 2013
MINIMUM TEMPERATURE (F) 44 32 2003
SUNRISE AND SUNSET
DECEMBER 27 2025......SUNRISE 6:55 AM PST SUNSET 4:49 PM PST
DECEMBER 28 2025......SUNRISE 6:55 AM PST SUNSET 4:50 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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