


Climatological Report (Daily)
Issued by NWS
Issued by NWS
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440 CDUS46 KSGX 040944 CLIONT CLIMATE REPORT NATIONAL WEATHER SERVICE SAN DIEGO, CA 244 AM PDT FRI JUL 04 2025 ................................... ...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR JULY 3 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 88 12:57 PM 101 2007 92 -4 98 MINIMUM 59 5:09 AM 58 2010 64 -5 67 AVERAGE 74 78 -4 83 PRECIPITATION (IN) YESTERDAY 0.00 0.00 2004 0.00 0.00 0.00 2005 2006 MONTH TO DATE 0.00 0.00 0.00 0.00 SINCE JUL 1 0.00 0.00 0.00 0.00 SINCE OCT 1 6.22 11.46 -5.24 17.64 SINCE JAN 1 6.07 8.36 -2.29 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 9 13 -4 18 MONTH TO DATE 27 37 -10 47 SINCE JUN 1 315 287 28 332 SINCE JAN 1 565 501 64 393 ................................................................... WIND (MPH) RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION SW (240) HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION W (270) HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION W (260) AVERAGE WIND SPEED 7.4 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.1 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. FOG HAZE RELATIVE HUMIDITY (PERCENT) HIGHEST 90 4:00 AM LOWEST 35 1:00 PM AVERAGE 63 .......................................................... THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 92 101 2008 MINIMUM TEMPERATURE (F) 64 57 2010 SUNRISE AND SUNSET JULY 4 2025..........SUNRISE 5:44 AM PDT SUNSET 8:05 PM PDT JULY 5 2025..........SUNRISE 5:45 AM PDT SUNSET 8:05 PM PDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$