National Weather Service Text Product
AFOS product CLIONT
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIONT
Product Timestamp: 2025-12-11 10:21 UTC
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085
CDUS46 KSGX 111021
CLIONT
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA
221 AM PST THU DEC 11 2025
...................................
...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR DECEMBER 10 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 85R 3:00 PM 85 2017 67 18 72
MINIMUM 52 6:41 AM 31 2013 44 8 50
AVERAGE 69 55 14 61
PRECIPITATION (IN)
YESTERDAY 0.00 0.11 2015 0.06 -0.06 0.00
MONTH TO DATE 0.00 0.54 -0.54 0.00
SINCE JUL 1 5.21 1.93 3.28 0.15
SINCE OCT 1 5.09 1.75 3.34 0.15
SINCE JAN 1 11.28 10.29 0.99 16.44
DEGREE DAYS
HEATING
YESTERDAY 0 10 -10 4
MONTH TO DATE 45 91 -46 41
SINCE DEC 1 45 91 -46 41
SINCE JUL 1 156 253 -97 192
COOLING
YESTERDAY 4 0 4 0
MONTH TO DATE 4 0 4 0
SINCE DEC 1 4 0 4 0
SINCE JAN 1 2009 1967 42 2027
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION W (290)
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION W (280)
HIGHEST GUST SPEED 11 HIGHEST GUST DIRECTION W (280)
AVERAGE WIND SPEED 2.9
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 44 8:00 AM
LOWEST 15 2:00 PM
AVERAGE 30
..........................................................
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 67 83 2004
MINIMUM TEMPERATURE (F) 44 34 1998
2011
SUNRISE AND SUNSET
DECEMBER 11 2025......SUNRISE 6:46 AM PST SUNSET 4:42 PM PST
DECEMBER 12 2025......SUNRISE 6:47 AM PST SUNSET 4:42 PM PST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$