977
CDUS43 KLOT 150636
CLIMDW
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1236 AM CST MON DEC 15 2025
...............................
..THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR DECEMBER 14 2025
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)
YESTERDAY
MAXIMUM 11 3:32 PM 66 1975 38 -27 41
MINIMUM -1 7:53 AM -4 1985 25 -26 26
AVERAGE 5 32 -27 34
PRECIPITATION (IN)
YESTERDAY 0.00 1.04 2022 0.06 -0.06 0.23
MONTH TO DATE 0.43 0.87 -0.44 0.23
SINCE DEC 1 0.43 0.87 -0.44 0.23
SINCE JAN 1 30.12 33.50 -3.38 35.42
DEGREE DAYS
HEATING
YESTERDAY 60 33 27 31
MONTH TO DATE 588 438 150 507
SINCE DEC 1 588 438 150 507
SINCE JUL 1 1497 1522 -25 1213
COOLING
YESTERDAY 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 23 HIGHEST WIND DIRECTION NW (310)
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION W (290)
AVERAGE WIND SPEED 12.5
SKY COVER
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 63 11:00 PM
LOWEST 48 2:00 PM
AVERAGE 56
......................................................
THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 38 66 2021
MINIMUM TEMPERATURE (F) 25 -8 1951
1989
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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