354
CDUS46 KSGX 210928
CLIONT
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA
228 AM PDT WED MAY 21 2025
...............................
..THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR MAY 20 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 94 2:04 PM 98 2000 80 14 71
MINIMUM 59 1:50 PM 51 2011 56 3 55
AVERAGE 77 68 9 63
PRECIPITATION (IN)
YESTERDAY 0.00 0.20 2002 0.01 -0.01 T
MONTH TO DATE 0.25 0.24 0.01 0.15
SINCE JUL 1 6.12 11.56 -5.44 19.80
SINCE OCT 1 6.12 11.38 -5.26 17.64
SINCE JAN 1 5.97 8.28 -2.31 16.29
DEGREE DAYS
HEATING
YESTERDAY 0 1 -1 2
MONTH TO DATE 32 29 3 24
SINCE MAR 1 376 306 70 414
SINCE JUL 1 1134 1280 -146 1302
COOLING
YESTERDAY 12 4 8 0
MONTH TO DATE 88 70 18 20
SINCE MAR 1 145 150 -5 45
SINCE JAN 1 164 163 1 45
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION SW (240)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION W (260)
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION W (250)
AVERAGE WIND SPEED 5.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 67 2:00 AM
LOWEST 18 3:00 PM
AVERAGE 43
......................................................
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 80 101 2000
MINIMUM TEMPERATURE (F) 56 47 2002
SUNRISE AND SUNSET
MAY 21 2025...........SUNRISE 5:45 AM PDT SUNSET 7:50 PM PDT
MAY 22 2025...........SUNRISE 5:44 AM PDT SUNSET 7:51 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page