432
CDUS46 KSGX 180919
CLIONT
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA
219 AM PDT FRI SEP 18 2026
...............................
...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR SEPTEMBER 17 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 83 3:36 PM 102 2000 91 -8 97
2020
MINIMUM 65 11:44 PM 55 2010 64 1 70
2024
AVERAGE 74 78 -4 84
PRECIPITATION (IN)
YESTERDAY 0.00 T 2023 0.00 0.00 0.00
MONTH TO DATE 0.56 0.04 0.52 0.00
SINCE JUL 1 0.56 0.12 0.44 T
SINCE OCT 1 12.64 11.58 1.06 6.22
SINCE JAN 1 5.62 8.48 -2.86 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 9 13 -4 19
MONTH TO DATE 256 238 18 253
SINCE SEP 1 256 238 18 253
SINCE JAN 1 2068 1611 457 1642
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION SW (240)
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION SW (230)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION SW (230)
AVERAGE WIND SPEED 6.9
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 79 12:00 AM
LOWEST 38 3:00 PM
AVERAGE 59
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THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 91 106 2016
MINIMUM TEMPERATURE (F) 64 55 2010
SUNRISE AND SUNSET
SEPTEMBER 18 2026.....SUNRISE 6:36 AM PDT SUNSET 6:53 PM PDT
SEPTEMBER 19 2026.....SUNRISE 6:37 AM PDT SUNSET 6:51 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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