085 CDUS46 KSGX 111021 CLIONT CLIMATE REPORT NATIONAL WEATHER SERVICE SAN DIEGO, CA 221 AM PST THU DEC 11 2025 ................................... ...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR DECEMBER 10 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 85R 3:00 PM 85 2017 67 18 72 MINIMUM 52 6:41 AM 31 2013 44 8 50 AVERAGE 69 55 14 61 PRECIPITATION (IN) YESTERDAY 0.00 0.11 2015 0.06 -0.06 0.00 MONTH TO DATE 0.00 0.54 -0.54 0.00 SINCE JUL 1 5.21 1.93 3.28 0.15 SINCE OCT 1 5.09 1.75 3.34 0.15 SINCE JAN 1 11.28 10.29 0.99 16.44 DEGREE DAYS HEATING YESTERDAY 0 10 -10 4 MONTH TO DATE 45 91 -46 41 SINCE DEC 1 45 91 -46 41 SINCE JUL 1 156 253 -97 192 COOLING YESTERDAY 4 0 4 0 MONTH TO DATE 4 0 4 0 SINCE DEC 1 4 0 4 0 SINCE JAN 1 2009 1967 42 2027 ................................................................... WIND (MPH) RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION W (290) HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION W (280) HIGHEST GUST SPEED 11 HIGHEST GUST DIRECTION W (280) AVERAGE WIND SPEED 2.9 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.0 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 44 8:00 AM LOWEST 15 2:00 PM AVERAGE 30 .......................................................... THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 67 83 2004 MINIMUM TEMPERATURE (F) 44 34 1998 2011 SUNRISE AND SUNSET DECEMBER 11 2025......SUNRISE 6:46 AM PST SUNSET 4:42 PM PST DECEMBER 12 2025......SUNRISE 6:47 AM PST SUNSET 4:42 PM PST - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$