230
CDUS43 KLOT 132242
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
442 PM CST SAT DEC 13 2025
...............................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR DECEMBER 13 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 26 12:03 AM 67 1975 37 -11 27
MINIMUM 9 11:39 AM -13 1903 25 -16 4
AVERAGE 18 31 -13 16
PRECIPITATION (IN)
TODAY 0.00 1.14 1928 0.07 -0.07 0.00
MONTH TO DATE 0.72 0.96 -0.24 T
SINCE DEC 1 0.72 0.96 -0.24 T
SINCE JAN 1 28.44 36.71 -8.27 32.99
SNOWFALL (IN)
TODAY 0.0 6.0 1885 0.3 -0.3 0.0
2000
MONTH TO DATE 6.9 2.9 4.0 0.2
SINCE DEC 1 6.9 2.9 4.0 0.2
SINCE JUL 1 17.3 4.9 12.4 3.1
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 47 34 13 49
MONTH TO DATE 536 417 119 490
SINCE DEC 1 536 417 119 490
SINCE JUL 1 1505 1568 -63 1257
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 21 HIGHEST WIND DIRECTION NW (300)
HIGHEST GUST SPEED 33 HIGHEST GUST DIRECTION W (260)
AVERAGE WIND SPEED 11.9
SKY COVER
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 77 12:00 AM
LOWEST 47 9:00 AM
AVERAGE 62
......................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 37 66 1975
MINIMUM TEMPERATURE (F) 25 -9 1901
SUNRISE AND SUNSET
DECEMBER 13 2025......SUNRISE 7:11 AM CST SUNSET 4:21 PM CST
DECEMBER 14 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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