CDUS46 KSGX 160020 CLIONT CLIMATE REPORT NATIONAL WEATHER SERVICE SAN DIEGO, CA 420 PM PST MON DEC 15 2025 ................................... ...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR DECEMBER 15 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 78 2:46 PM 81 2013 66 12 66 2017 MINIMUM 49 6:16 AM 32 2015 43 6 45 AVERAGE 64 55 9 56 PRECIPITATION (IN) TODAY 0.00 1.70 2008 0.07 -0.07 0.00 MONTH TO DATE 0.00 0.85 -0.85 0.00 SINCE JUL 1 5.21 2.24 2.97 0.15 SINCE OCT 1 5.09 2.06 3.03 0.15 SINCE JAN 1 11.28 10.60 0.68 16.44 DEGREE DAYS HEATING TODAY 1 10 -9 9 MONTH TO DATE 49 141 -92 92 SINCE DEC 1 49 141 -92 92 SINCE JUL 1 160 303 -143 243 COOLING TODAY 0 0 0 0 MONTH TO DATE 8 0 8 0 SINCE DEC 1 8 0 8 0 SINCE JAN 1 2013 1967 46 2027 ................................................................... WIND (MPH) RESULTANT WIND SPEED 0 RESULTANT WIND DIRECTION W (260) HIGHEST WIND SPEED 8 HIGHEST WIND DIRECTION W (260) HIGHEST GUST SPEED 11 HIGHEST GUST DIRECTION W (250) AVERAGE WIND SPEED 2.4 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.1 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED TODAY. FOG HAZE RELATIVE HUMIDITY (PERCENT) HIGHEST 83 3:00 AM LOWEST 27 1:00 PM AVERAGE 55 .......................................................... THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TOMORROW NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 66 84 2013 MINIMUM TEMPERATURE (F) 43 33 2001 SUNRISE AND SUNSET DECEMBER 15 2025......SUNRISE 6:49 AM PST SUNSET 4:43 PM PST DECEMBER 16 2025......SUNRISE 6:49 AM PST SUNSET 4:43 PM PST - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$