Climatological Report (Daily)
Issued by NWS
Issued by NWS
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046
CDUS46 KSGX 200040
CLIONT
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA
540 PM PDT TUE AUG 19 2025
...................................
...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR AUGUST 19 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 96 2:40 PM 107 2020 95 1 99
MINIMUM 65 4:07 AM 59 2009 65 0 67
AVERAGE 81 80 1 83
PRECIPITATION (IN)
TODAY 0.00 T 2021 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 16 15 1 18
MONTH TO DATE 269 285 -16 352
SINCE JUN 1 902 977 -75 1157
SINCE JAN 1 1152 1191 -39 1218
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION SW (230)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION W (270)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION W (250)
AVERAGE WIND SPEED 4.1
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 81 5:00 AM
LOWEST 19 3:00 PM
AVERAGE 50
..........................................................
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 95 104 2020
2024
MINIMUM TEMPERATURE (F) 65 59 2006
SUNRISE AND SUNSET
AUGUST 19 2025........SUNRISE 6:15 AM PDT SUNSET 7:32 PM PDT
AUGUST 20 2025........SUNRISE 6:16 AM PDT SUNSET 7:31 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$