


Climatological Report (Daily)
Issued by NWS
Issued by NWS
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415 CDUS46 KSGX 290027 CLIONT CLIMATE REPORT NATIONAL WEATHER SERVICE SAN DIEGO, CA 527 PM PDT THU AUG 28 2025 ................................... ...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR AUGUST 28 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 88 1:49 PM 110 2017 95 -7 91 MINIMUM 72 5:35 AM 59 2010 65 7 62 AVERAGE 80 80 0 77 PRECIPITATION (IN) TODAY 0.00 T 2012 0.00 0.00 0.00 MONTH TO DATE T 0.03 -0.03 T SINCE JUL 1 T 0.08 -0.08 T SINCE OCT 1 6.22 11.54 -5.32 17.64 SINCE JAN 1 6.07 8.44 -2.37 16.29 DEGREE DAYS HEATING TODAY 0 0 0 0 MONTH TO DATE 0 0 0 0 SINCE JUN 1 0 4 -4 2 SINCE JUL 1 0 0 0 0 COOLING TODAY 15 15 0 12 MONTH TO DATE 448 420 28 474 SINCE JUN 1 1081 1112 -31 1279 SINCE JAN 1 1331 1326 5 1340 ................................................................... WIND (MPH) RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION SW (210) HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION W (260) HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION W (250) AVERAGE WIND SPEED 3.6 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.9 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED TODAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 57 3:00 AM LOWEST 21 12:00 PM AVERAGE 39 .......................................................... THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TOMORROW NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 95 108 2009 2017 MINIMUM TEMPERATURE (F) 65 59 2010 SUNRISE AND SUNSET AUGUST 28 2025........SUNRISE 6:22 AM PDT SUNSET 7:21 PM PDT AUGUST 29 2025........SUNRISE 6:22 AM PDT SUNSET 7:20 PM PDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$