Climatological Report (Daily)
Issued by NWS

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709
CDUS43 KLOT 302143
CLIPWK

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
443 PM CDT WED SEP 30 2026

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

...THE CHICAGO EXECUTIVE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 30 2026...
VALID TODAY AS OF 0400 PM LOCAL TIME.

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1996 TO 2026


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         70   1:52 AM  87    2019  70      0       81
  MINIMUM         60   8:05 AM  37    2003  51      9       60
  AVERAGE         65                        60      5       71

PRECIPITATION (IN)
  TODAY            0.49R         0.27 1998   0.10   0.39     0.00
  MONTH TO DATE    3.46                      3.04   0.42     1.70
  SINCE SEP 1      3.46                      3.04   0.42     1.70
  SINCE JAN 1     30.02                     25.38   4.64    19.47

DEGREE DAYS
 HEATING
  TODAY            0                         6     -6        0
  MONTH TO DATE   40                        82    -42       34
  SINCE SEP 1     40                        82    -42       34
  SINCE JUL 1     40                        89    -49       42

 COOLING
  TODAY            0                         1     -1        6
  MONTH TO DATE  151                       106     45      140
  SINCE SEP 1    151                       106     45      140
  SINCE JAN 1    943                       920     23     1064
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    16   HIGHEST WIND DIRECTION     S (190)
  HIGHEST GUST SPEED    21   HIGHEST GUST DIRECTION     S (190)
  AVERAGE WIND SPEED     8.8


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
  RAIN
  LIGHT RAIN
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           7:00 AM
 LOWEST     49           1:00 AM
 AVERAGE    75

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


THE CHICAGO EXECUTIVE AIRPORT CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   69        88      2019
 MINIMUM TEMPERATURE (F)   50        31      2003


SUNRISE AND SUNSET
SEPTEMBER 30 2026.....SUNRISE   6:48 AM CDT   SUNSET   6:35 PM CDT
OCTOBER  1 2026.......SUNRISE   6:49 AM CDT   SUNSET   6:33 PM CDT


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




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