417
CDUS46 KSGX 180926
CLIONT
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA
226 AM PDT THU SEP 18 2025
...............................
...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR SEPTEMBER 17 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 97 1:09 PM 102 2000 91 6 76
2020
MINIMUM 70 7:24 PM 55 2010 64 6 55
2024
AVERAGE 84 78 6 66
PRECIPITATION (IN)
YESTERDAY 0.00 T 2023 0.00 0.00 0.00
MONTH TO DATE 0.00 0.04 -0.04 T
SINCE JUL 1 T 0.12 -0.12 T
SINCE OCT 1 6.22 11.58 -5.36 17.64
SINCE JAN 1 6.07 8.48 -2.41 16.29
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 19 13 6 1
MONTH TO DATE 253 238 15 287
SINCE SEP 1 253 238 15 287
SINCE JAN 1 1642 1611 31 1661
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION W (250)
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION SW (230)
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION W (260)
AVERAGE WIND SPEED 5.9
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 73 7:00 PM
LOWEST 27 12:00 PM
AVERAGE 50
......................................................
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 2025.....SUNRISE 6:36 AM PDT SUNSET 6:52 PM PDT
SEPTEMBER 19 2025.....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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