848
CDUS46 KSGX 041043
CLIONT
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA
243 AM PST SUN JAN 04 2026
...............................
..THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR JANUARY 3 2026
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 63 2:27 PM 82 2012 67 -4 70
MINIMUM 55 7:43 AM 33 2000 44 11 46
AVERAGE 59 56 3 58
PRECIPITATION (IN)
YESTERDAY 0.05 0.58 2005 0.09 -0.04 0.00
MONTH TO DATE 0.93 0.28 0.65 0.00
SINCE JUL 1 8.07 3.56 4.51 0.15
SINCE OCT 1 7.95 3.38 4.57 0.15
SINCE JAN 1 0.93 0.28 0.65 0.00
DEGREE DAYS
HEATING
YESTERDAY 6 10 -4 7
MONTH TO DATE 18 30 -12 13
SINCE DEC 1 157 334 -177 209
SINCE JUL 1 268 496 -228 360
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 1
SINCE DEC 1 9 2 7 6
SINCE JAN 1 0 0 0 1
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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 3.7
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 100 8:00 AM
LOWEST 70 1:00 PM
AVERAGE 85
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THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 67 85 2012
MINIMUM TEMPERATURE (F) 44 34 2011
2013
SUNRISE AND SUNSET
JANUARY 4 2026.......SUNRISE 6:56 AM PST SUNSET 4:55 PM PST
JANUARY 5 2026.......SUNRISE 6:57 AM PST SUNSET 4:56 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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