Climatological Report (Daily)
Issued by NWS Chicago, IL

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920
CDUS43 KLOT 170633
CLILOT

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
133 AM CDT THU SEP 17 2026

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

...THE ROMEOVILLE WFO CLIMATE SUMMARY FOR SEPTEMBER 16 2026...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1992 TO 2026


WEATHER ITEM   OBSERVED RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   VALUE       VALUE  FROM      YEAR
                                           NORMAL
............................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         74     91    2018  77     -3       83
  MINIMUM         65     42    2000  55     10       61
                               2014
  AVERAGE         70                 66      4       72

PRECIPITATION (IN)
  YESTERDAY        0.11   1.16 1997   0.10   0.01     0.00
  MONTH TO DATE    0.23               1.82  -1.59     0.43
  SINCE SEP 1      0.23               1.82  -1.59     0.43
  SINCE JAN 1     35.71              31.16   4.55    25.44

SNOWFALL (IN)
  YESTERDAY        0.0   MM      MM   0.0    0.0      0.0
  MONTH TO DATE    0.0                0.0    0.0      0.0
  SINCE SEP 1      0.0                0.0    0.0      0.0
  SINCE JUL 1      0.0                0.0    0.0      0.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY        0                  2     -2        0
  MONTH TO DATE    3                 22    -19       49
  SINCE SEP 1      3                 22    -19       49
  SINCE JUL 1      3                 28    -25       61

 COOLING
  YESTERDAY        5                  3      2        7
  MONTH TO DATE  159                 75     84       51
  SINCE SEP 1    159                 75     84       51
  SINCE JAN 1    994                900     94      954
............................................................


THE ROMEOVILLE WFO CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   76        91      2018
 MINIMUM TEMPERATURE (F)   55        44      1999
                                             2014


SUNRISE AND SUNSET
SEPTEMBER 17 2026.....SUNRISE   6:35 AM CDT   SUNSET   6:58 PM CDT
SEPTEMBER 18 2026.....SUNRISE   6:36 AM CDT   SUNSET   6:56 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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