Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS46 KSGX 170930
CLIONT
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN DIEGO, CA
230 AM PDT THU APR 17 2025
...................................
...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR APRIL 16 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 63 2:17 PM 92 2011 76 -13 82
MINIMUM 53 6:55 AM 43 2009 51 2 50
AVERAGE 58 63 -5 66
PRECIPITATION (IN)
YESTERDAY 0.00 T 2013 0.03 -0.03 0.00
2013
2019
MONTH TO DATE T 0.47 -0.47 0.55
SINCE JUL 1 5.61 11.03 -5.42 19.64
SINCE OCT 1 5.61 10.85 -5.24 17.48
SINCE JAN 1 5.46 7.75 -2.29 16.13
DEGREE DAYS
HEATING
YESTERDAY 7 4 3 0
MONTH TO DATE 44 64 -20 107
SINCE MAR 1 281 236 45 363
SINCE JUL 1 1039 1210 -171 1251
COOLING
YESTERDAY 0 2 -2 1
MONTH TO DATE 41 22 19 11
SINCE MAR 1 54 45 9 11
SINCE JAN 1 73 58 15 11
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION SW (240)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION SW (220)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION SW (220)
AVERAGE WIND SPEED 7.5
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 77 1:00 AM
LOWEST 44 5:00 PM
AVERAGE 61
..........................................................
THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 76 92 1999
MINIMUM TEMPERATURE (F) 51 43 2013
SUNRISE AND SUNSET
APRIL 17 2025.........SUNRISE 6:17 AM PDT SUNSET 7:24 PM PDT
APRIL 18 2025.........SUNRISE 6:15 AM PDT SUNSET 7:25 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$