Climatological Report (Daily)
Issued by NWS

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026
CDUS43 KLOT 212140
CLIARR

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

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

...THE AURORA MUNICIPAL AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 21 2026...
VALID TODAY AS OF 0400 PM LOCAL TIME.

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2026


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         68   1:02 PM  93    2024  75     -7       83
  MINIMUM         60   8:48 AM  36    1999  50     10       64
  AVERAGE         64                        62      2       74

PRECIPITATION (IN)
  TODAY            T             0.73 2016   0.11  -0.11      T
  MONTH TO DATE    7.02                      2.11   4.91     0.88
  SINCE SEP 1      7.02                      2.11   4.91     0.88
  SINCE JAN 1     41.98                     25.73  16.25    22.45

DEGREE DAYS
 HEATING
  TODAY            1                         5     -4        0
  MONTH TO DATE   13                        57    -44       61
  SINCE SEP 1     13                        57    -44       61
  SINCE JUL 1     17                        75    -58       82

 COOLING
  TODAY            0                         2     -2        9
  MONTH TO DATE  143                        67     76       81
  SINCE SEP 1    143                        67     76       81
  SINCE JAN 1    852                       755     97      978
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    21   HIGHEST WIND DIRECTION     E (80)
  HIGHEST GUST SPEED    32   HIGHEST GUST DIRECTION     E (70)
  AVERAGE WIND SPEED    13.3


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    90          12:00 AM
 LOWEST     66          12:00 PM
 AVERAGE    78

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


THE AURORA MUNICIPAL AIRPORT CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   74        93      2017
 MINIMUM TEMPERATURE (F)   49        33      1999


SUNRISE AND SUNSET
SEPTEMBER 21 2026.....SUNRISE   6:40 AM CDT   SUNSET   6:53 PM CDT
SEPTEMBER 22 2026.....SUNRISE   6:41 AM CDT   SUNSET   6:51 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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