621
CDUS46 KSGX 010919
CLIONT
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA
219 AM PDT TUE SEP 01 2026
...............................
..THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR AUGUST 31 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 91 1:41 PM 112 2017 95 -4 101
MINIMUM 68 5:30 AM 56 1999 65 3 70
AVERAGE 80 80 0 86
PRECIPITATION (IN)
YESTERDAY 0.00 0.13 1998 0.00 0.00 0.00
MONTH TO DATE 0.00 0.03 -0.03 T
SINCE JUL 1 T 0.08 -0.08 T
SINCE OCT 1 12.08 11.54 0.54 6.22
SINCE JAN 1 5.06 8.44 -3.38 6.07
DEGREE DAYS
HEATING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 0 4 -4 0
SINCE JUL 1 0 0 0 0
COOLING
YESTERDAY 15 15 0 21
MONTH TO DATE 614 467 147 506
SINCE JUN 1 1382 1159 223 1139
SINCE JAN 1 1812 1373 439 1389
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WIND (MPH)
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION W (250)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION SW (240)
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION SW (230)
AVERAGE WIND SPEED 6.9
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 87 5:00 AM
LOWEST 27 4:00 PM
AVERAGE 57
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THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 95 114 2017
MINIMUM TEMPERATURE (F) 65 57 2011
SUNRISE AND SUNSET
SEPTEMBER 1 2026.....SUNRISE 6:24 AM PDT SUNSET 7:16 PM PDT
SEPTEMBER 2 2026.....SUNRISE 6:25 AM PDT SUNSET 7:15 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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