Climatological Report (Daily)
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496
CDUS46 KSGX 180017
CLIONT

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA
517 PM PDT MON AUG 17 2026

...................................

...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR AUGUST 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         98   2:47 PM 102    2023  95      3       90
  MINIMUM         67   5:39 AM  58    2009  65      2       63
  AVERAGE         83                        80      3       77

PRECIPITATION (IN)
  TODAY            0.00          T    2012   0.00   0.00     0.00
  MONTH TO DATE    0.00                      0.02  -0.02     0.00
  SINCE JUL 1      T                         0.07  -0.07     0.00
  SINCE OCT 1     12.08                     11.53   0.55     6.22
  SINCE JAN 1      5.06                      8.43  -3.37     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           18                        15      3       12
  MONTH TO DATE  297                       255     42      240
  SINCE JUN 1   1065                       947    118      873
  SINCE JAN 1   1495                      1161    334     1123
...................................................................


WIND (MPH)
  RESULTANT WIND SPEED   4   RESULTANT WIND DIRECTION  SW (240)
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION     W (270)
  HIGHEST GUST SPEED    26   HIGHEST GUST DIRECTION     W (260)
  AVERAGE WIND SPEED     4.7


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.2


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    78           5:00 AM
 LOWEST     14           1:00 PM
 AVERAGE    46

..........................................................


THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   95       108      2020
 MINIMUM TEMPERATURE (F)   65        59      2009


SUNRISE AND SUNSET
AUGUST 17 2026........SUNRISE   6:14 AM PDT   SUNSET   7:35 PM PDT
AUGUST 18 2026........SUNRISE   6:14 AM PDT   SUNSET   7:34 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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