Climatological Report (Daily)
Issued by NWS
Issued by NWS
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756
CDUS46 KSGX 170924
CLIONT
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA
224 AM PDT WED SEP 17 2025
...................................
...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR SEPTEMBER 16 2025...
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)
YESTERDAY
MAXIMUM 100 2:39 PM 107 2000 92 8 74
2014
MINIMUM 70 5:22 AM 56 1999 64 6 57
AVERAGE 85 78 7 66
PRECIPITATION (IN)
YESTERDAY 0.00 0.03 2002 0.00 0.00 T
MONTH TO DATE 0.00 0.04 -0.04 T
SINCE JUL 1 T 0.12 -0.12 T
SINCE OCT 1 6.22 11.58 -5.36 17.64
SINCE JAN 1 6.07 8.48 -2.41 16.29
DEGREE DAYS
HEATING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE SEP 1 0 0 0 0
SINCE JUL 1 0 0 0 0
COOLING
YESTERDAY 20 13 7 1
MONTH TO DATE 234 225 9 286
SINCE SEP 1 234 225 9 286
SINCE JAN 1 1623 1598 25 1660
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION W (250)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION W (270)
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION SW (240)
AVERAGE WIND SPEED 5.4
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 73 2:00 AM
LOWEST 24 12:00 PM
AVERAGE 49
..........................................................
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 91 102 2000
2020
MINIMUM TEMPERATURE (F) 64 55 2010
2024
SUNRISE AND SUNSET
SEPTEMBER 17 2025.....SUNRISE 6:35 AM PDT SUNSET 6:54 PM PDT
SEPTEMBER 18 2025.....SUNRISE 6:36 AM PDT SUNSET 6:52 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$