887
CDUS43 KLOT 210640
CLILOT
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
140 AM CDT THU MAY 21 2026
...............................
..THE ROMEOVILLE WFO CLIMATE SUMMARY FOR MAY 20 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 61 91 2012 74 -13 57
MINIMUM 47 35 2002 52 -5 49
AVERAGE 54 63 -9 53
PRECIPITATION (IN)
YESTERDAY 0.00 0.94 2013 0.16 -0.16 0.78
MONTH TO DATE 0.94 3.13 -2.19 1.28
SINCE MAR 1 11.66 9.95 1.71 9.12
SINCE JAN 1 14.29 14.12 0.17 10.54
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 11 5 6 12
MONTH TO DATE 193 142 51 136
SINCE MAR 1 1167 1396 -229 1199
SINCE JUL 1 5748 6002 -254 5537
COOLING
YESTERDAY 0 2 -2 0
MONTH TO DATE 20 30 -10 38
SINCE MAR 1 33 40 -7 44
SINCE JAN 1 33 40 -7 44
........................................................
THE ROMEOVILLE WFO CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 74 89 2024
MINIMUM TEMPERATURE (F) 52 32 2002
SUNRISE AND SUNSET
MAY 21 2026...........SUNRISE 5:28 AM CDT SUNSET 8:11 PM CDT
MAY 22 2026...........SUNRISE 5:27 AM CDT SUNSET 8:12 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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