CDUS43 KLOT 142235 CLIORD CLIMATE REPORT NATIONAL WEATHER SERVICE CHICAGO IL 435 PM CST SUN DEC 14 2025 ................................... ...THE CHICAGO-OHARE CLIMATE SUMMARY FOR DECEMBER 14 2025... VALID TODAY AS OF 0400 PM LOCAL TIME. 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) TODAY MAXIMUM 10 2:30 PM 66 1975 37 -27 39 MINIMUM -2 8:06 AM -9 1901 25 -27 25 AVERAGE 4 31 -27 32 PRECIPITATION (IN) TODAY 0.00 1.43 2011 0.07 -0.07 0.33 MONTH TO DATE 0.72 1.03 -0.31 0.33 SINCE DEC 1 0.72 1.03 -0.31 0.33 SINCE JAN 1 28.44 36.78 -8.34 33.32 SNOWFALL (IN) TODAY 0.0 10.0 1951 0.2 -0.2 T MONTH TO DATE 6.9 3.1 3.8 0.2 SINCE DEC 1 6.9 3.1 3.8 0.2 SINCE JUL 1 17.3 5.1 12.2 3.1 SNOW DEPTH 0 DEGREE DAYS HEATING TODAY 61 34 27 33 MONTH TO DATE 601 451 150 523 SINCE DEC 1 601 451 150 523 SINCE JUL 1 1570 1602 -32 1290 COOLING TODAY 0 0 0 0 MONTH TO DATE 0 0 0 0 SINCE DEC 1 0 0 0 0 SINCE JAN 1 1215 1003 212 1212 ................................................................... WIND (MPH) HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION NW (310) HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION NW (310) AVERAGE WIND SPEED 11.6 SKY COVER AVERAGE SKY COVER 0.2 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED TODAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 62 2:00 AM LOWEST 50 2:00 PM AVERAGE 56 .......................................................... THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 37 66 2021 MINIMUM TEMPERATURE (F) 25 -12 1901 SUNRISE AND SUNSET DECEMBER 14 2025......SUNRISE 7:12 AM CST SUNSET 4:21 PM CST DECEMBER 15 2025......SUNRISE 7:13 AM CST SUNSET 4:21 PM CST - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$