Climatological Report (Daily)
Issued by NWS Chicago, IL

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988
CDUS43 KLOT 210632
CLILOT

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
132 AM CDT THU AUG 21 2025

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

...THE ROMEOVILLE WFO CLIMATE SUMMARY FOR AUGUST 20 2025...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1992 TO 2025


WEATHER ITEM   OBSERVED RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   VALUE       VALUE  FROM      YEAR
                                           NORMAL
............................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         76     91    2010  82     -6       73
                               2023
  MINIMUM         66     49    1992  63      3       57
  AVERAGE         71                 73     -2       65

PRECIPITATION (IN)
  YESTERDAY        0.00   2.39 2022   0.13  -0.13     0.00
  MONTH TO DATE    5.86               2.82   3.04     2.31
  SINCE JUN 1     13.72              12.00   1.72    11.30
  SINCE JAN 1     24.64              27.80  -3.16    32.26

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 JUN 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                  0      0        0
  MONTH TO DATE    0                  0      0        2
  SINCE JUN 1     17                 25     -8       10
  SINCE JUL 1      0                  2     -2        2

 COOLING
  YESTERDAY        6                  8     -2        0
  MONTH TO DATE  213                171     42      149
  SINCE JUN 1    836                671    165      688
  SINCE JAN 1    880                748    132      759
............................................................


THE ROMEOVILLE WFO CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   82        94      2003
 MINIMUM TEMPERATURE (F)   63        49      1992


SUNRISE AND SUNSET
AUGUST 21 2025........SUNRISE   6:07 AM CDT   SUNSET   7:43 PM CDT
AUGUST 22 2025........SUNRISE   6:08 AM CDT   SUNSET   7:41 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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