


Climatological Report (Daily)
Issued by NWS
Issued by NWS
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915 CDUS46 KSGX 040020 CLIONT CLIMATE REPORT NATIONAL WEATHER SERVICE SAN DIEGO, CA 520 PM PDT SUN AUG 03 2025 ................................... ...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR AUGUST 3 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 94 3:02 PM 105 1998 95 -1 102 MINIMUM 61 5:31 AM 59 2013 65 -4 71 AVERAGE 78 80 -2 87 PRECIPITATION (IN) TODAY 0.00 0.04 2014 0.00 0.00 0.00 MONTH TO DATE 0.00 0.00 0.00 T SINCE JUL 1 0.00 0.05 -0.05 T SINCE OCT 1 6.22 11.51 -5.29 17.64 SINCE JAN 1 6.07 8.41 -2.34 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 13 15 -2 22 MONTH TO DATE 37 45 -8 61 SINCE JUN 1 670 737 -67 866 SINCE JAN 1 920 951 -31 927 ................................................................... WIND (MPH) RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION SW (240) HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION W (260) HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION SW (240) AVERAGE WIND SPEED 5.0 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.4 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED TODAY. FOG HAZE RELATIVE HUMIDITY (PERCENT) HIGHEST 90 5:00 AM LOWEST 23 2:00 PM AVERAGE 57 .......................................................... THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TOMORROW NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 95 104 1998 MINIMUM TEMPERATURE (F) 65 58 2002 SUNRISE AND SUNSET AUGUST 3 2025........SUNRISE 6:04 AM PDT SUNSET 7:49 PM PDT AUGUST 4 2025........SUNRISE 6:04 AM PDT SUNSET 7:48 PM PDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$