


Climatological Report (Daily)
Issued by NWS
Issued by NWS
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177 CDUS46 KSGX 010926 CLIONT CLIMATE REPORT NATIONAL WEATHER SERVICE SAN DIEGO, CA 226 AM PDT TUE JUL 01 2025 ................................... ...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR JUNE 30 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 95 3:09 PM 104 2013 91 4 98 MINIMUM 64 3:46 AM 56 2002 63 1 65 AVERAGE 80 77 3 82 PRECIPITATION (IN) YESTERDAY 0.00 0.01 2015 0.00 0.00 0.00 MONTH TO DATE 0.10 0.02 0.08 T SINCE JUL 1 6.22 11.64 -5.42 19.80 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 2 SINCE JUN 1 0 0 0 2 SINCE JUL 1 1134 1288 -154 1314 COOLING YESTERDAY 15 12 3 17 MONTH TO DATE 288 250 38 285 SINCE JUN 1 288 250 38 285 SINCE JAN 1 538 464 74 346 ................................................................... WIND (MPH) RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION W (250) HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION W (270) HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION SW (240) AVERAGE WIND SPEED 7.0 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.1 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 56 5:00 AM LOWEST 24 2:00 PM AVERAGE 40 .......................................................... THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 91 103 2006 MINIMUM TEMPERATURE (F) 63 56 2004 SUNRISE AND SUNSET JULY 1 2025..........SUNRISE 5:43 AM PDT SUNSET 8:06 PM PDT JULY 2 2025..........SUNRISE 5:43 AM PDT SUNSET 8:06 PM PDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$