


Climatological Report (Daily)
Issued by NWS
Issued by NWS
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422 CDUS46 KSGX 270924 CLIONT CLIMATE REPORT NATIONAL WEATHER SERVICE SAN DIEGO, CA 224 AM PDT WED AUG 27 2025 ................................... ...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR AUGUST 26 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 93 1:42 PM 104 2011 95 -2 94 MINIMUM 69 6:11 AM 59 2006 65 4 64 AVERAGE 81 80 1 79 PRECIPITATION (IN) YESTERDAY 0.00 T 2011 0.00 0.00 0.00 2011 2013 MONTH TO DATE T 0.02 -0.02 T SINCE JUL 1 T 0.07 -0.07 T SINCE OCT 1 6.22 11.53 -5.31 17.64 SINCE JAN 1 6.07 8.43 -2.36 16.29 DEGREE DAYS HEATING YESTERDAY 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 YESTERDAY 16 15 1 14 MONTH TO DATE 414 390 24 447 SINCE JUN 1 1047 1082 -35 1252 SINCE JAN 1 1297 1296 1 1313 ................................................................... WIND (MPH) RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION W (250) HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION W (250) HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION W (270) AVERAGE WIND SPEED 7.5 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.3 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 78 6:00 AM LOWEST 31 6:00 PM AVERAGE 55 .......................................................... THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 95 108 2009 MINIMUM TEMPERATURE (F) 65 60 2002 2016 SUNRISE AND SUNSET AUGUST 27 2025........SUNRISE 6:21 AM PDT SUNSET 7:22 PM PDT AUGUST 28 2025........SUNRISE 6:22 AM PDT SUNSET 7:21 PM PDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$