499
CDUS46 KSGX 130025
CLIONT
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA
525 PM PDT MON MAY 12 2025
...............................
..THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR MAY 12 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 76 2:47 PM 103 2013 79 -3 82
MINIMUM 57 4:49 AM 47 2000 55 2 54
AVERAGE 67 67 0 68
PRECIPITATION (IN)
TODAY 0.00 T 2018 0.01 -0.01 0.00
MONTH TO DATE 0.24 0.16 0.08 0.15
SINCE JUL 1 6.11 11.48 -5.37 19.80
SINCE OCT 1 6.11 11.30 -5.19 17.64
SINCE JAN 1 5.96 8.20 -2.24 16.29
DEGREE DAYS
HEATING
TODAY 0 1 -1 0
MONTH TO DATE 25 21 4 16
SINCE MAR 1 369 298 71 406
SINCE JUL 1 1127 1272 -145 1294
COOLING
TODAY 2 4 -2 3
MONTH TO DATE 63 38 25 16
SINCE MAR 1 120 118 2 41
SINCE JAN 1 139 131 8 41
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION W (250)
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION SW (230)
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION SW (220)
AVERAGE WIND SPEED 7.0
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 4:00 AM
LOWEST 34 3:00 PM
AVERAGE 65
......................................................
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 79 103 2013
MINIMUM TEMPERATURE (F) 55 49 2000
SUNRISE AND SUNSET
MAY 12 2025...........SUNRISE 5:51 AM PDT SUNSET 7:43 PM PDT
MAY 13 2025...........SUNRISE 5:50 AM PDT SUNSET 7:44 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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