Climatological Report (Daily)
Issued by NWS

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483
CDUS46 KSGX 220023
CLIONT

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA
423 PM PST FRI NOV 21 2025

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

...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR NOVEMBER 21 2025...
VALID TODAY AS OF 0400 PM LOCAL TIME.

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2025


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         65   3:07 PM  90    2017  73     -8       79
  MINIMUM         52   6:47 AM  40    2022  47      5       45
  AVERAGE         59                        60     -1       62

PRECIPITATION (IN)
  TODAY            0.57R         0.38 2004   0.03   0.54     0.00
  MONTH TO DATE    4.01                      0.46   3.55     0.04
  SINCE JUL 1      5.21                      1.05   4.16     0.10
  SINCE OCT 1      5.09                      0.87   4.22     0.10
  SINCE JAN 1     11.28                      9.41   1.87    16.39

DEGREE DAYS
 HEATING
  TODAY            6                         6      0        3
  MONTH TO DATE   66                        73     -7       93
  SINCE SEP 1     80                       100    -20      106
  SINCE JUL 1     80                       100    -20      106

 COOLING
  TODAY            0                         1     -1        0
  MONTH TO DATE   63                        37     26        0
  SINCE SEP 1    615                       591     24      653
  SINCE JAN 1   2004                      1964     40     2027
...................................................................


WIND (MPH)
  RESULTANT WIND SPEED   5   RESULTANT WIND DIRECTION  NE (50)
  HIGHEST WIND SPEED    15   HIGHEST WIND DIRECTION     N (20)
  HIGHEST GUST SPEED    22   HIGHEST GUST DIRECTION    NE (40)
  AVERAGE WIND SPEED     5.5


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.9


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
  THUNDERSTORM
  RAIN
  LIGHT RAIN
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93          12:00 AM
 LOWEST     46           3:00 PM
 AVERAGE    70

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


THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   72        95      2017
 MINIMUM TEMPERATURE (F)   47        40      2011


SUNRISE AND SUNSET
NOVEMBER 21 2025......SUNRISE   6:29 AM PST   SUNSET   4:44 PM PST
NOVEMBER 22 2025......SUNRISE   6:30 AM PST   SUNSET   4:43 PM PST


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.




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