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000
CXUS53 KLOT 271249
CLMPWK

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
820 AM CDT SUN OCT 01 2023

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

...THE CHICAGO EXECUTIVE AIRPORT CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2023...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1996 TO 2023

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             96   09/22/2017
                       09/10/2013
 LOW              34   09/24/2012
HIGHEST           94   09/05                          88  09/01
LOWEST            47   09/15                          41  09/29
AVG. MAXIMUM    76.3               75.3     1.0     75.4
AVG. MINIMUM    58.9               56.3     2.6     57.6
MEAN            67.6               65.8     1.8     66.5
DAYS MAX >= 90     3                1.7     1.3        0
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     0                0.0     0.0        0
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        9.43   2008
 MINIMUM        0.31   2004
TOTALS          2.89               3.04   -0.15     3.28
DAILY AVG.      0.10               0.10   -0.00     0.11
DAYS >= .01       11                9.5     1.5        7
DAYS >= .10        5                5.4    -0.4        4
DAYS >= .50        2                1.7     0.3        2
DAYS >= 1.00       1                0.7     0.3        1
GREATEST
 24 HR. TOTAL   1.45   09/17 TO 09/17               1.98

DEGREE DAYS
HEATING TOTAL     34                 82     -48       83
 SINCE 7/1        38                 89     -51       MM
COOLING TOTAL    119                106      13      135
 SINCE 1/1       839                920     -81       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              5.6
HIGHEST WIND SPEED/DIRECTION    24/190    DATE  09/05
HIGHEST GUST SPEED/DIRECTION    33/190    DATE  09/05

AVERAGE RH (PERCENT)     73

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              3     MIXED PRECIP               0
HEAVY RAIN                3     RAIN                       5
LIGHT RAIN               14     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      13     FOG W/VIS <= 1/4 MILE      1
HAZE                      2

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

$$