Coles County climate

Coles County Weather in May

NOAA 1991-2020 normals for Charleston, 6.9 km from Coles County

Average highs run from 73°F on May 1 to 82°F on May 31, and lows from 50°F to 59°F. Normal precipitation for the month is 4.52 in over about 13 wet days.

May day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Coles County, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

May at a glance

Average high
77°F
Average low
54°F
Precipitation
4.52 in
Record high
94°FMay 28, 2018
Record low
31°FMay 3, 2005
Chance of a freeze
13%
Days of 90°F or more
1.2
Daylight
13 h 53 min to 14 h 46 min
Cloud cover
65%
Humidity
78%
Dew point
56°F
Wind
10.3 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
May 173°F50°F82°F 200735°F 201543%0%
May 273°F50°F84°F 201234°F 200543%0%
May 373°F50°F83°F 200131°F 200543%0%
May 474°F51°F85°F 200132°F 200543%0%
May 574°F51°F86°F 201235°F 201143%0%
May 674°F51°F86°F 201239°F 202043%0%
May 775°F51°F83°F 200438°F 201743%0%
May 875°F52°F87°F 200737°F 202042%0%
May 975°F52°F84°F 200331°F 202042%0%
May 1075°F52°F87°F 200534°F 202142%0%
May 1176°F53°F91°F 202239°F 202042%0%
May 1276°F53°F88°F 202234°F 202142%0%
May 1376°F53°F87°F 201838°F 200142%0%
May 1477°F54°F89°F 201838°F 202142%0%
May 1577°F54°F89°F 200142°F 200541%0%
May 1677°F54°F92°F 200138°F 201441%0%
May 1777°F54°F87°F 200135°F 201141%0%
May 1878°F55°F86°F 199833°F 200241%0%
May 1978°F55°F90°F 199837°F 200241%0%
May 2078°F55°F88°F 201238°F 200240%0%
May 2179°F56°F87°F 202432°F 200240%0%
May 2279°F56°F86°F 200740°F 200240%0%
May 2379°F56°F88°F 201043°F 201340%0%
May 2479°F57°F89°F 201038°F 201340%0%
May 2580°F57°F88°F 201245°F 200139%0%
May 2680°F57°F91°F 201242°F 202339%0%
May 2780°F57°F93°F 201847°F 200339%0%
May 2881°F58°F94°F 201847°F 200139%0%
May 2981°F58°F89°F 200645°F 200839%0%
May 3081°F58°F88°F 199843°F 202138%0%
May 3182°F59°F90°F 200245°F 200338%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Coles County, in percent, and of at least 0.1 inch of snowfall.010203040501102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CDT).

May 1
sunrise 5:54 AM, sunset 7:47 PM
May 31
sunrise 5:28 AM, sunset 8:14 PM

Every day of May: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00111436 (Charleston), public domain. Records: NOAA GHCN-Daily, station USW00053802, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.