Clark County climate

Clark County Weather in May

NOAA 1991-2020 normals for Casey, 16.6 km from Clark County

Average highs run from 71°F on May 1 to 81°F on May 31, and lows from 48°F to 60°F. Normal precipitation for the month is 4.48 in over about 12 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 Clark County, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

May at a glance

Average high
76°F
Average low
54°F
Precipitation
4.48 in
Record high
98°FMay 20, 1987
Record low
28°FMay 1, 1903
Chance of a freeze
10%
Days of 90°F or more
1.0
Daylight
13 h 53 min to 14 h 44 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 171°F48°F92°F 195128°F 190340%0%
May 271°F48°F91°F 195932°F 197841%0%
May 371°F49°F92°F 192833°F 196741%0%
May 472°F49°F93°F 195930°F 194041%0%
May 572°F49°F94°F 195234°F 190741%0%
May 672°F50°F94°F 194931°F 194441%0%
May 773°F50°F90°F 198631°F 194441%0%
May 873°F51°F94°F 198632°F 192841%0%
May 973°F51°F93°F 189634°F 192341%0%
May 1074°F51°F92°F 189629°F 196640%0%
May 1174°F52°F90°F 200032°F 194540%0%
May 1275°F52°F92°F 190234°F 190940%0%
May 1375°F53°F94°F 198733°F 196040%0%
May 1475°F53°F92°F 196230°F 189540%0%
May 1576°F54°F93°F 198837°F 192040%0%
May 1676°F54°F95°F 200132°F 199739%0%
May 1776°F54°F97°F 196238°F 194039%0%
May 1877°F55°F94°F 196237°F 194139%0%
May 1977°F55°F94°F 195136°F 192539%0%
May 2077°F56°F98°F 198736°F 195639%0%
May 2178°F56°F95°F 190236°F 195439%0%
May 2278°F57°F95°F 194135°F 199738%0%
May 2379°F57°F92°F 190636°F 198538%0%
May 2479°F57°F93°F 192137°F 192938%0%
May 2579°F58°F96°F 192630°F 192538%0%
May 2679°F58°F97°F 191134°F 192538%0%
May 2780°F58°F98°F 191133°F 196138%0%
May 2880°F59°F98°F 191139°F 190238%0%
May 2980°F59°F97°F 191338°F 193238%0%
May 3081°F59°F96°F 191336°F 192438%0%
May 3181°F60°F98°F 193438°F 196638%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Clark 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 5:52 AM, sunset 7:45 PM
May 31
sunrise 5:27 AM, sunset 8:11 PM

Every day of May: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00111329 (Casey), public domain. Records: NOAA GHCN-Daily, station USC00116558, 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.