CDUS43 KLOT 240634 CLIORD CLIMATE REPORT NATIONAL WEATHER SERVICE CHICAGO IL 134 AM CDT FRI OCT 24 2025 ................................... ...THE CHICAGO-OHARE CLIMATE SUMMARY FOR OCTOBER 23 2025... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1871 TO 2025 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) YESTERDAY MAXIMUM 53 3:10 PM 85 1963 60 -7 65 MINIMUM 38 6:43 AM 20 1981 43 -5 44 AVERAGE 46 51 -5 55 PRECIPITATION (IN) YESTERDAY 0.00 1.40 1957 0.11 -0.11 0.00 MONTH TO DATE 2.53 2.57 -0.04 0.31 SINCE SEP 1 3.02 5.76 -2.74 1.63 SINCE JAN 1 25.47 32.47 -7.00 28.49 SNOWFALL (IN) YESTERDAY 0.0 0.7 1929 0.0 0.0 0.0 MONTH TO DATE 0.0 0.1 -0.1 0.0 SINCE SEP 1 0.0 0.1 -0.1 0.0 SINCE JUL 1 0.0 0.1 -0.1 0.0 SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 19 14 5 10 MONTH TO DATE 132 231 -99 125 SINCE SEP 1 164 308 -144 140 SINCE JUL 1 169 314 -145 140 COOLING YESTERDAY 0 0 0 0 MONTH TO DATE 57 12 45 16 SINCE SEP 1 223 128 95 206 SINCE JAN 1 1215 1000 215 1192 ................................................................... WIND (MPH) HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION NW (320) HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION NW (330) AVERAGE WIND SPEED 8.1 SKY COVER AVERAGE SKY COVER 0.3 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 82 6:00 AM LOWEST 39 3:00 PM AVERAGE 61 .......................................................... THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 59 83 1963 2023 MINIMUM TEMPERATURE (F) 43 17 1981 SUNRISE AND SUNSET OCTOBER 24 2025.......SUNRISE 7:15 AM CDT SUNSET 5:56 PM CDT OCTOBER 25 2025.......SUNRISE 7:16 AM CDT SUNSET 5:55 PM CDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$