CDUS43 KLOT 272139 CLIMDW CLIMATE REPORT NATIONAL WEATHER SERVICE CHICAGO IL 439 PM CDT MON OCT 27 2025 ................................... ...THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR OCTOBER 27 2025... VALID TODAY AS OF 0400 PM LOCAL TIME. CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1928 TO 2025 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) TODAY MAXIMUM 57 2:59 PM 82 1940 58 -1 59 MINIMUM 46 MM 24 1942 42 4 40 AVERAGE 52 50 2 50 PRECIPITATION (IN) TODAY 0.00 1.56 1947 0.11 -0.11 0.00 MONTH TO DATE 2.78 3.06 -0.28 1.21 SINCE SEP 1 3.34 5.83 -2.49 3.10 SINCE JAN 1 28.16 29.86 -1.70 32.57 DEGREE DAYS HEATING TODAY 13 15 -2 15 MONTH TO DATE 181 266 -85 157 SINCE SEP 1 202 325 -123 167 SINCE JUL 1 204 329 -125 167 COOLING TODAY 0 0 0 0 MONTH TO DATE 65 17 48 19 SINCE SEP 1 269 153 116 238 SINCE JAN 1 1410 1109 301 1361 ................................................................... WIND (MPH) HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION NE (60) HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION E (80) AVERAGE WIND SPEED 12.5 SKY COVER AVERAGE SKY COVER 0.3 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED TODAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 80 2:00 AM LOWEST 43 11:00 AM AVERAGE 62 .......................................................... THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TOMORROW NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 58 81 1999 MINIMUM TEMPERATURE (F) 42 25 1976 SUNRISE AND SUNSET OCTOBER 27 2025.......SUNRISE 7:18 AM CDT SUNSET 5:51 PM CDT OCTOBER 28 2025.......SUNRISE 7:19 AM CDT SUNSET 5:50 PM CDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$