CDUS43 KLOT 202202 CLIORD CLIMATE REPORT NATIONAL WEATHER SERVICE CHICAGO IL 502 PM CDT SUN SEP 20 2026 ................................... ...THE CHICAGO-OHARE CLIMATE SUMMARY FOR SEPTEMBER 20 2026... VALID TODAY AS OF 0400 PM LOCAL TIME. CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1871 TO 2026 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) TODAY MAXIMUM 69 1:58 AM 93 2018 74 -5 77 MINIMUM 64 2:59 PM 36 1991 55 9 66 AVERAGE 67 65 2 72 PRECIPITATION (IN) TODAY 1.17 1.33 2001 0.11 1.06 0.11 MONTH TO DATE 2.92 2.16 0.76 0.39 SINCE SEP 1 2.92 2.16 0.76 0.39 SINCE JAN 1 33.89 28.87 5.02 22.84 SNOWFALL (IN) TODAY 0.0 0.0 MM 0.0 0.0 0.0 MONTH TO DATE 0.0 0.0 0.0 0.0 SINCE SEP 1 0.0 0.0 0.0 0.0 SINCE JUL 1 0.0 0.0 0.0 0.0 SNOW DEPTH 0 DEGREE DAYS HEATING TODAY 0 3 -3 0 MONTH TO DATE 3 30 -27 32 SINCE SEP 1 3 30 -27 32 SINCE JUL 1 3 36 -33 37 COOLING TODAY 2 3 -1 7 MONTH TO DATE 188 96 92 94 SINCE SEP 1 188 96 92 94 SINCE JAN 1 1114 968 146 1086 ................................................................... WIND (MPH) HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION NE (30) HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION N (20) AVERAGE WIND SPEED 12.7 SKY COVER AVERAGE SKY COVER 1.0 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED TODAY. THUNDERSTORM HEAVY RAIN RAIN LIGHT RAIN FOG RELATIVE HUMIDITY (PERCENT) HIGHEST 100 3:00 AM LOWEST 90 9:00 AM AVERAGE 95 .......................................................... THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 74 94 2017 MINIMUM TEMPERATURE (F) 55 39 1889 1983 1991 SUNRISE AND SUNSET SEPTEMBER 20 2026.....SUNRISE 6:37 AM CDT SUNSET 6:52 PM CDT SEPTEMBER 21 2026.....SUNRISE 6:38 AM CDT SUNSET 6:50 PM CDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$