641
CDUS46 KSGX 010033
CLIONT
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA
533 PM PDT SAT MAY 31 2025
...............................
..THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR MAY 31 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 96R 2:15 PM 96 2006 82 14 80
MINIMUM 64 4:26 AM 52 1998 57 7 57
AVERAGE 80 70 10 69
PRECIPITATION (IN)
TODAY 0.00 0.00 MM 0.00 0.00 0.00
MONTH TO DATE 0.25 0.30 -0.05 0.15
SINCE JUL 1 6.12 11.62 -5.50 19.80
SINCE OCT 1 6.12 11.44 -5.32 17.64
SINCE JAN 1 5.97 8.34 -2.37 16.29
DEGREE DAYS
HEATING
TODAY 0 0 0 0
MONTH TO DATE 32 37 -5 34
SINCE MAR 1 376 314 62 424
SINCE JUL 1 1134 1288 -154 1312
COOLING
TODAY 15 5 10 4
MONTH TO DATE 174 121 53 36
SINCE MAR 1 231 201 30 61
SINCE JAN 1 250 214 36 61
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION W (260)
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION W (270)
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION W (260)
AVERAGE WIND SPEED 6.1
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 84 4:00 AM
LOWEST 23 2:00 PM
AVERAGE 54
......................................................
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 82 100 2013
MINIMUM TEMPERATURE (F) 58 51 2011
SUNRISE AND SUNSET
MAY 31 2025...........SUNRISE 5:40 AM PDT SUNSET 7:56 PM PDT
JUNE 1 2025..........SUNRISE 5:40 AM PDT SUNSET 7:57 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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