CDUS43 KLOT 250640 CLIORD CLIMATE REPORT NATIONAL WEATHER SERVICE CHICAGO IL 140 AM CDT SAT OCT 25 2025 ................................... ...THE CHICAGO-OHARE CLIMATE SUMMARY FOR OCTOBER 24 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 54 2:30 PM 83 1963 59 -5 64 2023 MINIMUM 34 6:19 AM 17 1981 43 -9 40 AVERAGE 44 51 -7 52 PRECIPITATION (IN) YESTERDAY 0.00 1.85 2021 0.11 -0.11 0.21 MONTH TO DATE 2.53 2.68 -0.15 0.52 SINCE SEP 1 3.02 5.87 -2.85 1.84 SINCE JAN 1 25.47 32.58 -7.11 28.70 SNOWFALL (IN) YESTERDAY 0.0 T 1909 0.0 0.0 0.0 1959 2013 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 21 14 7 13 MONTH TO DATE 153 245 -92 138 SINCE SEP 1 185 322 -137 153 SINCE JUL 1 190 328 -138 153 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 12 HIGHEST WIND DIRECTION E (100) HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION E (100) AVERAGE WIND SPEED 4.3 SKY COVER AVERAGE SKY COVER 0.2 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 83 11:00 PM LOWEST 41 3:00 PM AVERAGE 62 .......................................................... THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 59 79 1963 MINIMUM TEMPERATURE (F) 42 14 1887 SUNRISE AND SUNSET OCTOBER 25 2025.......SUNRISE 7:16 AM CDT SUNSET 5:55 PM CDT OCTOBER 26 2025.......SUNRISE 7:17 AM CDT SUNSET 5:53 PM CDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$