Climatological Report (Daily)
Issued by NWS
Issued by NWS
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605
CDUS46 KSGX 220024
CLIONT
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA
524 PM PDT THU AUG 21 2025
...................................
...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR AUGUST 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 103R 2:38 PM 103 2020 95 8 99
MINIMUM 74 5:49 AM 57 2011 65 9 69
AVERAGE 89 80 9 84
PRECIPITATION (IN)
TODAY 0.00 0.23 2023 0.00 0.00 0.00
MONTH TO DATE 0.00 0.02 -0.02 T
SINCE JUL 1 0.00 0.07 -0.07 T
SINCE OCT 1 6.22 11.53 -5.31 17.64
SINCE JAN 1 6.07 8.43 -2.36 16.29
DEGREE DAYS
HEATING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 0 4 -4 2
SINCE JUL 1 0 0 0 0
COOLING
TODAY 24 15 9 19
MONTH TO DATE 312 315 -3 393
SINCE JUN 1 945 1007 -62 1198
SINCE JAN 1 1195 1221 -26 1259
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION SW (240)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION W (270)
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION SW (240)
AVERAGE WIND SPEED 4.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 48 7:00 AM
LOWEST 19 12:00 PM
AVERAGE 34
..........................................................
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 95 104 1998
MINIMUM TEMPERATURE (F) 65 59 2002
SUNRISE AND SUNSET
AUGUST 21 2025........SUNRISE 6:17 AM PDT SUNSET 7:30 PM PDT
AUGUST 22 2025........SUNRISE 6:17 AM PDT SUNSET 7:29 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$