665
CDUS43 KLOT 210640
CLILOT
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
140 AM CDT SUN SEP 21 2025
...............................
..THE ROMEOVILLE WFO CLIMATE SUMMARY FOR SEPTEMBER 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 75 94 2018 75 0 89
MINIMUM 62 40 2006 54 8 64
AVERAGE 69 64 5 77
PRECIPITATION (IN)
YESTERDAY 0.25 0.96 2009 0.12 0.13 0.14
MONTH TO DATE 0.69 2.25 -1.56 0.14
SINCE SEP 1 0.69 2.25 -1.56 0.14
SINCE JAN 1 25.70 31.59 -5.89 33.48
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 3 -3 0
MONTH TO DATE 49 34 15 17
SINCE SEP 1 49 34 15 17
SINCE JUL 1 61 40 21 21
COOLING
YESTERDAY 4 3 1 12
MONTH TO DATE 79 87 -8 118
SINCE SEP 1 79 87 -8 118
SINCE JAN 1 982 912 70 987
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THE ROMEOVILLE WFO CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 75 93 2017
MINIMUM TEMPERATURE (F) 53 39 1995
SUNRISE AND SUNSET
SEPTEMBER 21 2025.....SUNRISE 6:39 AM CDT SUNSET 6:51 PM CDT
SEPTEMBER 22 2025.....SUNRISE 6:40 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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