004
CDUS43 KLOT 152239
CLIMDW
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
439 PM CST MON DEC 15 2025
...............................
..THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR DECEMBER 15 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 22 3:59 PM 66 2021 38 -16 46
MINIMUM 3 2:17 AM -8 1951 25 -22 40
1989
AVERAGE 13 31 -18 43
PRECIPITATION (IN)
TODAY 0.00 1.14 1987 0.06 -0.06 0.01
MONTH TO DATE 0.43 0.93 -0.50 0.24
SINCE DEC 1 0.43 0.93 -0.50 0.24
SINCE JAN 1 30.12 33.56 -3.44 35.43
DEGREE DAYS
HEATING
TODAY 52 34 18 22
MONTH TO DATE 640 472 168 529
SINCE DEC 1 640 472 168 529
SINCE JUL 1 1549 1556 -7 1235
COOLING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 1410 1112 298 1384
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION SW (220)
HIGHEST GUST SPEED 33 HIGHEST GUST DIRECTION SW (230)
AVERAGE WIND SPEED 13.9
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 68 12:00 AM
LOWEST 53 11:00 AM
AVERAGE 61
......................................................
THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 37 67 2021
MINIMUM TEMPERATURE (F) 25 -12 1932
1951
SUNRISE AND SUNSET
DECEMBER 15 2025......SUNRISE 7:11 AM CST SUNSET 4:21 PM CST
DECEMBER 16 2025......SUNRISE 7:12 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.
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