854
CXUS53 KLOT 011348
CLMPWK

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
848 AM CDT SAT NOV 01 2025

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

...THE CHICAGO EXECUTIVE AIRPORT CLIMATE SUMMARY FOR THE MONTH OF OCTOBER 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             89   10/05/1997
 LOW              25   10/31/2023
HIGHEST           89R  10/03                          85  10/05
LOWEST            32   10/24                          31  10/17
                       10/25
AVG. MAXIMUM    66.2               62.5     3.7     69.8
AVG. MINIMUM    48.3               44.5     3.8     45.4
MEAN            57.3               53.5     3.8     57.6
DAYS MAX >= 90     0                0.0     0.0        0
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     2                2.5    -0.5        2
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        8.18   2017
 MINIMUM        0.22   2005
TOTALS          1.72               3.11   -1.39     1.25
DAILY AVG.      0.06               0.10   -0.04     0.04
DAYS >= .01        8               10.9    -2.9        5
DAYS >= .10        5                5.6    -0.6        3
DAYS >= .50        0                2.1    -2.1        1
DAYS >= 1.00       0                0.7    -0.7        0
GREATEST
 24 HR. TOTAL   0.55   10/18 TO 10/19               0.93


DEGREE DAYS
HEATING TOTAL    279                370     -91      242
 SINCE 7/1       321                458    -137       MM
COOLING TOTAL     45                 13      32       22
 SINCE 1/1      1109                933     176       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              6.9
HIGHEST WIND SPEED/DIRECTION    25/330    DATE  10/19
                                25/190          10/20
HIGHEST GUST SPEED/DIRECTION    36/330    DATE  10/19
                                36/270          10/21
                                36/280          10/22

AVERAGE RH (PERCENT)     68

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              3     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       3
LIGHT RAIN               10     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       7     FOG W/VIS <= 1/4 MILE      0
HAZE                      3

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

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