


Climatological Report (Daily)
Issued by NWS
Issued by NWS
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732 CDUS46 KSGX 170926 CLIONT CLIMATE REPORT NATIONAL WEATHER SERVICE SAN DIEGO, CA 226 AM PDT THU JUL 17 2025 ................................... ...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR JULY 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 90 2:30 PM 106 1998 94 -4 92 MINIMUM 61 5:12 AM 57 2011 65 -4 66 AVERAGE 76 80 -4 79 PRECIPITATION (IN) YESTERDAY 0.00 0.00 2004 0.00 0.00 0.00 2005 2006 MONTH TO DATE 0.00 0.02 -0.02 0.00 SINCE JUL 1 0.00 0.02 -0.02 0.00 SINCE OCT 1 6.22 11.48 -5.26 17.64 SINCE JAN 1 6.07 8.38 -2.31 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 11 15 -4 14 MONTH TO DATE 193 217 -24 256 SINCE JUN 1 481 467 14 541 SINCE JAN 1 731 681 50 602 ................................................................... WIND (MPH) RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION SW (240) HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION W (260) HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION W (250) AVERAGE WIND SPEED 6.6 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.2 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. HAZE RELATIVE HUMIDITY (PERCENT) HIGHEST 87 12:00 AM LOWEST 30 2:00 PM AVERAGE 59 .......................................................... THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 94 102 1998 MINIMUM TEMPERATURE (F) 65 57 2001 SUNRISE AND SUNSET JULY 17 2025..........SUNRISE 5:52 AM PDT SUNSET 8:01 PM PDT JULY 18 2025..........SUNRISE 5:52 AM PDT SUNSET 8:01 PM PDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$