Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS46 KSGX 220031
CLIONT
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA
531 PM PDT TUE JUL 21 2026
...................................
...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR JULY 21 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 93 2:51 PM 106 2006 95 -2 80
MINIMUM 71 5:28 AM 58 2011 65 6 64
AVERAGE 82 80 2 72
PRECIPITATION (IN)
TODAY 0.00 T 2013 0.00 0.00 0.00
MONTH TO DATE T 0.03 -0.03 0.00
SINCE JUL 1 T 0.03 -0.03 0.00
SINCE OCT 1 12.08 11.49 0.59 6.22
SINCE JAN 1 5.06 8.39 -3.33 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 17 15 2 7
MONTH TO DATE 316 292 24 245
SINCE JUN 1 576 542 34 533
SINCE JAN 1 1006 756 250 783
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION W (250)
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION SW (220)
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION SW (230)
AVERAGE WIND SPEED 5.5
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 61 7:00 AM
LOWEST 24 2:00 PM
AVERAGE 43
..........................................................
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 95 114 2006
MINIMUM TEMPERATURE (F) 65 56 2001
SUNRISE AND SUNSET
JULY 21 2026..........SUNRISE 5:54 AM PDT SUNSET 7:59 PM PDT
JULY 22 2026..........SUNRISE 5:55 AM PDT SUNSET 7:59 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$