520
CDUS46 KSGX 200932
CLIONT
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA
232 AM PDT MON OCT 20 2025
...............................
..THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR OCTOBER 19 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 86 1:28 PM 98 2003 82 4 82
2023
MINIMUM 57 5:37 AM 50 2021 56 1 58
AVERAGE 72 69 3 70
PRECIPITATION (IN)
YESTERDAY 0.00 0.07 2004 0.01 -0.01 0.00
MONTH TO DATE 1.08 0.21 0.87 T
SINCE JUL 1 1.20 0.39 0.81 T
SINCE OCT 1 1.08 0.21 0.87 T
SINCE JAN 1 7.27 8.75 -1.48 16.29
DEGREE DAYS
HEATING
YESTERDAY 0 1 -1 0
MONTH TO DATE 12 6 6 3
SINCE SEP 1 12 7 5 3
SINCE JUL 1 12 7 5 3
COOLING
YESTERDAY 7 5 2 5
MONTH TO DATE 89 128 -39 197
SINCE SEP 1 489 506 -17 583
SINCE JAN 1 1878 1879 -1 1957
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WIND (MPH)
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION W (250)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION W (250)
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION W (260)
AVERAGE WIND SPEED 3.4
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 63 10:00 PM
LOWEST 19 12:00 PM
AVERAGE 41
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THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 82 101 2003
MINIMUM TEMPERATURE (F) 56 49 2002
SUNRISE AND SUNSET
OCTOBER 20 2025.......SUNRISE 7:00 AM PDT SUNSET 6:10 PM PDT
OCTOBER 21 2025.......SUNRISE 7:01 AM PDT SUNSET 6:09 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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