661
CDUS46 KSGX 280920
CLIONT
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA
220 AM PDT TUE APR 28 2026
...............................
..THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR APRIL 27 2026
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 67 4:07 PM 100 2004 77 -10 62
MINIMUM 53 11:59 PM 46 2003 53 0 48
AVERAGE 60 65 -5 55
PRECIPITATION (IN)
YESTERDAY T R T 2021 0.01 -0.01 T
2025
MONTH TO DATE 0.64 0.71 -0.07 0.26
SINCE JUL 1 11.99 11.27 0.72 5.87
SINCE OCT 1 11.87 11.09 0.78 5.87
SINCE JAN 1 4.85 7.99 -3.14 5.72
DEGREE DAYS
HEATING
YESTERDAY 5 3 2 10
MONTH TO DATE 36 97 -61 103
SINCE MAR 1 54 269 -215 340
SINCE JUL 1 618 1243 -625 1098
COOLING
YESTERDAY 0 3 -3 0
MONTH TO DATE 60 48 12 43
SINCE MAR 1 270 71 199 56
SINCE JAN 1 313 84 229 75
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION SW (230)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION SW (220)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION SW (220)
AVERAGE WIND SPEED 7.1
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 83 5:00 AM
LOWEST 32 3:00 PM
AVERAGE 58
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THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 78 97 2008
MINIMUM TEMPERATURE (F) 53 45 2002
SUNRISE AND SUNSET
APRIL 28 2026.........SUNRISE 6:04 AM PDT SUNSET 7:32 PM PDT
APRIL 29 2026.........SUNRISE 6:03 AM PDT SUNSET 7:33 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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