Climatological Report (Daily)
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103
CDUS43 KLOT 212140
CLIPWK

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
440 PM CDT MON SEP 21 2026

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

...THE CHICAGO EXECUTIVE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 21 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         65   1:45 PM  93    2017  74     -9       83
  MINIMUM         61   8:55 AM  40    2006  54      7       66
  AVERAGE         63                        64     -1       75

PRECIPITATION (IN)
  TODAY            0.00          0.46 2016   0.11  -0.11     0.14
  MONTH TO DATE    2.96                      2.14   0.82     1.69
  SINCE SEP 1      2.96                      2.14   0.82     1.69
  SINCE JAN 1     29.52                     24.48   5.04    19.46

DEGREE DAYS
 HEATING
  TODAY            2                         4     -2        0
  MONTH TO DATE    8                        37    -29       34
  SINCE SEP 1      8                        37    -29       34
  SINCE JUL 1      8                        44    -36       42

 COOLING
  TODAY            0                         2     -2       10
  MONTH TO DATE  151                        90     61       87
  SINCE SEP 1    151                        90     61       87
  SINCE JAN 1    943                       904     39     1011
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION     E (70)
  HIGHEST GUST SPEED    29   HIGHEST GUST DIRECTION     E (80)
  AVERAGE WIND SPEED    11.5


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    83           5:00 AM
 LOWEST     70           2:00 PM
 AVERAGE    77

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


THE CHICAGO EXECUTIVE AIRPORT CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   73        96      2017
 MINIMUM TEMPERATURE (F)   54        39      1999


SUNRISE AND SUNSET
SEPTEMBER 21 2026.....SUNRISE   6:38 AM CDT   SUNSET   6:50 PM CDT
SEPTEMBER 22 2026.....SUNRISE   6:39 AM CDT   SUNSET   6:49 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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