688
CDUS46 KSGX 180024
CLIONT
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA
524 PM PDT SUN MAY 17 2026
...............................
..THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR MAY 17 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 68 1:20 PM 102 2008 80 -12 65
MINIMUM 59 5:56 AM 45 2006 56 3 56
AVERAGE 64 68 -4 61
PRECIPITATION (IN)
TODAY 0.00 0.04 2011 0.01 -0.01 0.01
MONTH TO DATE 0.17 0.22 -0.05 0.25
SINCE JUL 1 12.16 11.54 0.62 6.12
SINCE OCT 1 12.04 11.36 0.68 6.12
SINCE JAN 1 5.02 8.26 -3.24 5.97
DEGREE DAYS
HEATING
TODAY 1 1 0 4
MONTH TO DATE 11 26 -15 32
SINCE MAR 1 67 303 -236 376
SINCE JUL 1 631 1277 -646 1134
COOLING
TODAY 0 4 -4 0
MONTH TO DATE 56 58 -2 68
SINCE MAR 1 328 138 190 125
SINCE JAN 1 371 151 220 144
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 8 RESULTANT WIND DIRECTION W (250)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION W (260)
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION SW (240)
AVERAGE WIND SPEED 8.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 83 2:00 AM
LOWEST 57 12:00 PM
AVERAGE 70
......................................................
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 80 101 2008
MINIMUM TEMPERATURE (F) 56 49 2011
2017
SUNRISE AND SUNSET
MAY 17 2026...........SUNRISE 5:47 AM PDT SUNSET 7:47 PM PDT
MAY 18 2026...........SUNRISE 5:47 AM PDT SUNSET 7:47 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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