737 CDUS46 KSGX 010016 CLIONT CLIMATE REPORT NATIONAL WEATHER SERVICE SAN DIEGO, CA 516 PM PDT FRI OCT 31 2025 ................................... ...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR OCTOBER 31 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 82 2:59 PM 91 1999 80 2 73 2015 2020 MINIMUM 58 6:47 AM 41 2019 53 5 50 AVERAGE 70 66 4 62 PRECIPITATION (IN) TODAY 0.00 0.18 2014 0.02 -0.02 0.00 MONTH TO DATE 1.08 0.41 0.67 0.06 SINCE JUL 1 1.20 0.59 0.61 0.06 SINCE OCT 1 1.08 0.41 0.67 0.06 SINCE JAN 1 7.27 8.95 -1.68 16.35 DEGREE DAYS HEATING TODAY 0 2 -2 3 MONTH TO DATE 14 23 -9 13 SINCE SEP 1 14 24 -10 13 SINCE JUL 1 14 24 -10 13 COOLING TODAY 5 3 2 0 MONTH TO DATE 152 176 -24 267 SINCE SEP 1 552 554 -2 653 SINCE JAN 1 1941 1927 14 2027 ................................................................... WIND (MPH) RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION SW (240) HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION W (260) HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION W (260) AVERAGE WIND SPEED 2.4 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.2 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED TODAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 60 7:00 AM LOWEST 24 12:00 PM AVERAGE 42 .......................................................... THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TOMORROW NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 79 90 2020 MINIMUM TEMPERATURE (F) 53 41 2019 SUNRISE AND SUNSET OCTOBER 31 2025.......SUNRISE 7:09 AM PDT SUNSET 5:58 PM PDT NOVEMBER 1 2025......SUNRISE 7:10 AM PDT SUNSET 5:57 PM PDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$