038
CDUS46 KSGX 100922
CLIONT
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA
222 AM PDT THU SEP 10 2026
...............................
...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR SEPTEMBER 9 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 109R 2:42 PM 108 2024 93 16 86
MINIMUM 80 5:54 AM 55 2000 65 15 63
AVERAGE 95 79 16 75
PRECIPITATION (IN)
YESTERDAY 0.00 T 2013 0.00 0.00 0.00
MONTH TO DATE 0.56 0.02 0.54 0.00
SINCE JUL 1 0.56 0.10 0.46 T
SINCE OCT 1 12.64 11.56 1.08 6.22
SINCE JAN 1 5.62 8.46 -2.84 6.07
DEGREE DAYS
HEATING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE SEP 1 0 0 0 0
SINCE JUL 1 0 0 0 0
COOLING
YESTERDAY 30 14 16 10
MONTH TO DATE 134 131 3 159
SINCE SEP 1 134 131 3 159
SINCE JAN 1 1946 1504 442 1548
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WIND (MPH)
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION SW (240)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION W (280)
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION W (270)
AVERAGE WIND SPEED 4.1
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 61 4:00 AM
LOWEST 18 3:00 PM
AVERAGE 40
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THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 93 100 2017
2021
2024
MINIMUM TEMPERATURE (F) 65 55 2008
SUNRISE AND SUNSET
SEPTEMBER 10 2026.....SUNRISE 6:30 AM PDT SUNSET 7:04 PM PDT
SEPTEMBER 11 2026.....SUNRISE 6:31 AM PDT SUNSET 7:02 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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