Climatological Report (Daily)
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
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CDUS43 KLOT 182134
CLILOT
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
434 PM CDT TUE AUG 18 2026
...................................
...THE ROMEOVILLE WFO CLIMATE SUMMARY FOR AUGUST 18 2026...
VALID TODAY AS OF 0400 PM LOCAL TIME.
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)
TODAY
MAXIMUM 79 90 1995 83 -4 86
MINIMUM 63 53 2002 63 0 68
2012
AVERAGE 71 73 -2 77
PRECIPITATION (IN)
TODAY T 2.22 2025 0.14 -0.14 2.22
MONTH TO DATE 6.65 2.55 4.10 5.73
SINCE JUN 1 19.84 11.73 8.11 13.59
SINCE JAN 1 34.83 27.53 7.30 24.51
SNOWFALL (IN)
TODAY 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
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 12 25 -13 17
SINCE JUL 1 0 2 -2 0
COOLING
TODAY 6 8 -2 12
MONTH TO DATE 169 155 14 198
SINCE JUN 1 685 655 30 821
SINCE JAN 1 741 732 9 865
............................................................
THE ROMEOVILLE WFO CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 83 91 1995
MINIMUM TEMPERATURE (F) 63 51 1992
SUNRISE AND SUNSET
AUGUST 18 2026........SUNRISE 6:04 AM CDT SUNSET 7:47 PM CDT
AUGUST 19 2026........SUNRISE 6:05 AM CDT SUNSET 7:46 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$