502
CDUS46 KSGX 280036
CLIONT
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA
536 PM PDT MON JUL 27 2026
...............................
..THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR JULY 27 2026
VALID TODAY AS OF 0400 PM LOCAL TIME.
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)
TODAY
MAXIMUM 99 2:44 PM 102 1998 95 4 87
2023
MINIMUM 70 5:10 AM 57 2012 65 5 59
AVERAGE 85 80 5 73
PRECIPITATION (IN)
TODAY 0.00 T 2015 0.00 0.00 0.00
MONTH TO DATE T 0.04 -0.04 0.00
SINCE JUL 1 T 0.04 -0.04 0.00
SINCE OCT 1 12.08 11.50 0.58 6.22
SINCE JAN 1 5.06 8.40 -3.34 6.07
DEGREE DAYS
HEATING
TODAY 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
TODAY 20 15 5 8
MONTH TO DATE 438 382 56 297
SINCE JUN 1 698 632 66 585
SINCE JAN 1 1128 846 282 835
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION SW (240)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION W (260)
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION W (260)
AVERAGE WIND SPEED 5.0
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 76 4:00 AM
LOWEST 21 3:00 PM
AVERAGE 49
......................................................
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 95 102 1998
MINIMUM TEMPERATURE (F) 65 57 2012
SUNRISE AND SUNSET
JULY 27 2026..........SUNRISE 5:58 AM PDT SUNSET 7:55 PM PDT
JULY 28 2026..........SUNRISE 5:59 AM PDT SUNSET 7:54 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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