041
CDUS43 KLOT 202234
CLIMDW
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
434 PM CST SAT DEC 20 2025
...............................
..THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR DECEMBER 20 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 41 1:20 PM 59 1949 36 5 36
1988
MINIMUM 24 12:43 AM -9 1963 24 0 24
AVERAGE 33 30 3 30
PRECIPITATION (IN)
TODAY 0.00 1.12 2012 0.06 -0.06 0.03
MONTH TO DATE 0.63 1.21 -0.58 0.32
SINCE DEC 1 0.63 1.21 -0.58 0.32
SINCE JAN 1 30.32 33.84 -3.52 35.51
DEGREE DAYS
HEATING
TODAY 32 35 -3 35
MONTH TO DATE 811 644 167 679
SINCE DEC 1 811 644 167 679
SINCE JUL 1 1720 1728 -8 1385
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 23 HIGHEST WIND DIRECTION SW (230)
HIGHEST GUST SPEED 40 HIGHEST GUST DIRECTION S (190)
AVERAGE WIND SPEED 15.2
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 71 1:00 AM
LOWEST 55 10:00 AM
AVERAGE 63
......................................................
THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 36 62 1967
MINIMUM TEMPERATURE (F) 24 -13 1989
SUNRISE AND SUNSET
DECEMBER 20 2025......SUNRISE 7:15 AM CST SUNSET 4:23 PM CST
DECEMBER 21 2025......SUNRISE 7:15 AM CST SUNSET 4:23 PM CST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page