494
CDUS43 KLOT 170633
CLILOT
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
133 AM CDT SUN MAY 17 2026
...............................
..THE ROMEOVILLE WFO CLIMATE SUMMARY FOR MAY 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 80 90 2001 73 7 88
MINIMUM 58 32 1997 50 8 57
AVERAGE 69 61 8 73
PRECIPITATION (IN)
YESTERDAY 0.10 1.04 2019 0.15 -0.05 0.00
MONTH TO DATE 0.65 2.50 -1.85 0.50
SINCE MAR 1 11.37 9.32 2.05 8.34
SINCE JAN 1 14.00 13.49 0.51 9.76
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 MAR 1 6.0 5.1 0.9 2.7
SINCE JUL 1 30.7 33.2 -2.5 17.5
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 6 -6 0
MONTH TO DATE 182 122 60 97
SINCE MAR 1 1156 1376 -220 1160
SINCE JUL 1 5737 5982 -245 5498
COOLING
YESTERDAY 4 2 2 8
MONTH TO DATE 4 22 -18 38
SINCE MAR 1 17 32 -15 44
SINCE JAN 1 17 32 -15 44
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THE ROMEOVILLE WFO CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 73 89 1996
MINIMUM TEMPERATURE (F) 51 35 2002
SUNRISE AND SUNSET
MAY 17 2026...........SUNRISE 5:31 AM CDT SUNSET 8:07 PM CDT
MAY 18 2026...........SUNRISE 5:30 AM CDT SUNSET 8:08 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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