422
CDUS46 KSGX 250923
CLIONT
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA
223 AM PDT SUN MAY 25 2025
...............................
..THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR MAY 24 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 77 3:35 PM 97 2021 81 -4 68
MINIMUM 58 11:59 PM 48 2010 57 1 56
AVERAGE 68 69 -1 62
PRECIPITATION (IN)
YESTERDAY 0.00 T 2018 0.01 -0.01 T
2023
2024
MONTH TO DATE 0.25 0.27 -0.02 0.15
SINCE JUL 1 6.12 11.59 -5.47 19.80
SINCE OCT 1 6.12 11.41 -5.29 17.64
SINCE JAN 1 5.97 8.31 -2.34 16.29
DEGREE DAYS
HEATING
YESTERDAY 0 1 -1 3
MONTH TO DATE 32 33 -1 31
SINCE MAR 1 376 310 66 421
SINCE JUL 1 1134 1284 -150 1309
COOLING
YESTERDAY 3 4 -1 0
MONTH TO DATE 121 86 35 21
SINCE MAR 1 178 166 12 46
SINCE JAN 1 197 179 18 46
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION W (250)
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION W (260)
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION W (270)
AVERAGE WIND SPEED 7.4
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 84 11:00 PM
LOWEST 42 1:00 PM
AVERAGE 63
......................................................
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 81 92 2020
2021
MINIMUM TEMPERATURE (F) 57 48 2010
SUNRISE AND SUNSET
MAY 25 2025...........SUNRISE 5:43 AM PDT SUNSET 7:53 PM PDT
MAY 26 2025...........SUNRISE 5:42 AM PDT SUNSET 7:53 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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