CDUS46 KSGX 200025 CLIONT CLIMATE REPORT NATIONAL WEATHER SERVICE SAN DIEGO, CA 525 PM PDT TUE MAY 19 2026 ................................... ...THE ONTARIO INTL AIRPORT CA CLIMATE SUMMARY FOR MAY 19 2026... VALID TODAY AS OF 0400 PM LOCAL TIME. CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1998 TO 2026 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) TODAY MAXIMUM 90 3:28 PM 97 2008 80 10 89 MINIMUM 55 5:09 AM 46 2011 56 -1 56 AVERAGE 73 68 5 73 PRECIPITATION (IN) TODAY 0.00 0.18 2019 0.00 0.00 0.00 MONTH TO DATE 0.17 0.23 -0.06 0.25 SINCE JUL 1 12.16 11.55 0.61 6.12 SINCE OCT 1 12.04 11.37 0.67 6.12 SINCE JAN 1 5.02 8.27 -3.25 5.97 DEGREE DAYS HEATING TODAY 0 1 -1 0 MONTH TO DATE 11 28 -17 32 SINCE MAR 1 67 305 -238 376 SINCE JUL 1 631 1279 -648 1134 COOLING TODAY 8 4 4 8 MONTH TO DATE 69 66 3 76 SINCE MAR 1 341 146 195 133 SINCE JAN 1 384 159 225 152 ................................................................... WIND (MPH) RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION NE (40) HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION NE (40) HIGHEST GUST SPEED 35 HIGHEST GUST DIRECTION NE (40) AVERAGE WIND SPEED 7.6 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.1 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED TODAY. FOG HAZE RELATIVE HUMIDITY (PERCENT) HIGHEST 84 2:00 AM LOWEST 7 3:00 PM AVERAGE 46 .......................................................... THE ONTARIO INTL AIRPORT CA CLIMATE NORMALS FOR TOMORROW NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 80 98 2000 MINIMUM TEMPERATURE (F) 56 51 2011 SUNRISE AND SUNSET MAY 19 2026...........SUNRISE 5:46 AM PDT SUNSET 7:48 PM PDT MAY 20 2026...........SUNRISE 5:46 AM PDT SUNSET 7:49 PM PDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$