575
CXUS53 KLOT 011154
CLMPWK

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
554 AM CST THU JAN 01 2026

...................................

...THE CHICAGO EXECUTIVE AIRPORT CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2025...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1996 TO 2025

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             69   12/03/2012
                       12/05/2001
 LOW              -8   12/23/2022
                       12/19/2016
                       12/22/2000
HIGHEST           55   12/28                          54  12/08
LOWEST            -2   12/14                           4  12/12
                                                          12/13
AVG. MAXIMUM    34.3               36.9    -2.6     38.6
AVG. MINIMUM    19.0               24.0    -5.0     25.4
MEAN            26.6               30.4    -3.8     32.0
DAYS MAX >= 90     0                0.0     0.0        0
DAYS MAX <= 32    17               10.0     7.0        9
DAYS MIN <= 32    27               25.5     1.5       22
DAYS MIN <= 0      1                1.2    -0.2        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        4.30   2008
 MINIMUM        0.27   2017
TOTALS          1.23               1.64   -0.41     1.33
DAILY AVG.      0.04               0.05   -0.01     0.04
DAYS >= .01       10                8.4     1.6       10
DAYS >= .10        2                4.1    -2.1        4
DAYS >= .50        1                1.3    -0.3        0
DAYS >= 1.00       0                0.3    -0.3        0
GREATEST
 24 HR. TOTAL   0.74   12/28 TO 12/28               0.49


DEGREE DAYS
HEATING TOTAL   1183               1071     112     1016
 SINCE 7/1      2201               2251     -50       MM
COOLING TOTAL      0                  0       0        0
 SINCE 1/1      1109                933     176       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              9.1
HIGHEST WIND SPEED/DIRECTION    31/190    DATE  12/18
HIGHEST GUST SPEED/DIRECTION    46/200    DATE  12/18
                                46/280          12/29

AVERAGE RH (PERCENT)     71

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       2
LIGHT RAIN                7     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW               14     SLEET                      0
FOG                      16     FOG W/VIS <= 1/4 MILE      0
HAZE                      1

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

$$