Madison County climate

Madison County Weather in May

NOAA 1991-2020 normals for Winterset 1S, 1.8 km from Madison County

Average highs run from 66°F on May 1 to 76°F on May 31, and lows from 42°F to 54°F. Normal precipitation for the month is 4.99 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 Madison County, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

May at a glance

Average high
71°F
Average low
48°F
Precipitation
4.99 in
Snowfall
0.1 in
Record high
99°FMay 27, 2018
Record low
28°FMay 6, 1947
Chance of a freeze
48%
Daylight
14 h 01 min to 14 h 56 min
Cloud cover
65%
Humidity
74%
Dew point
52°F
Wind
11.0 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 166°F42°F89°F 198732°F 195038%1%
May 266°F42°F90°F 195230°F 196738%1%
May 366°F42°F88°F 194930°F 200538%1%
May 467°F43°F89°F 195230°F 195439%1%
May 567°F43°F89°F 196234°F 195439%1%
May 667°F44°F86°F 195528°F 194739%0%
May 768°F44°F92°F 196631°F 195439%0%
May 868°F45°F88°F 196332°F 195439%0%
May 968°F45°F93°F 202233°F 196639%0%
May 1069°F46°F95°F 201132°F 196639%0%
May 1169°F46°F93°F 200030°F 194639%0%
May 1269°F46°F94°F 195632°F 194639%0%
May 1370°F47°F92°F 195632°F 199739%0%
May 1470°F47°F94°F 201336°F 196638%0%
May 1570°F48°F91°F 201235°F 195938%0%
May 1671°F48°F91°F 201936°F 201438%0%
May 1771°F49°F88°F 196239°F 197338%0%
May 1872°F49°F91°F 196736°F 200238%0%
May 1972°F49°F93°F 197537°F 200238%0%
May 2072°F50°F90°F 195540°F 196338%0%
May 2173°F50°F88°F 196238°F 200238%0%
May 2273°F51°F91°F 197033°F 196338%0%
May 2373°F51°F90°F 196732°F 196338%0%
May 2474°F51°F93°F 196741°F 200138%0%
May 2574°F52°F98°F 196742°F 197938%0%
May 2674°F52°F96°F 201839°F 196138%0%
May 2775°F53°F99°F 201838°F 199238%0%
May 2875°F53°F98°F 201832°F 194738%0%
May 2975°F53°F95°F 201832°F 194738%0%
May 3076°F54°F92°F 195344°F 194738%0%
May 3176°F54°F93°F 201840°F 197238%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Madison County, in percent, and of at least 0.1 inch of snowfall.0102030401102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CDT).

May 1
sunrise 6:13 AM, sunset 8:14 PM
May 31
sunrise 5:46 AM, sunset 8:42 PM

Every day of May: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00139132 (Winterset 1S), public domain. Records: NOAA GHCN-Daily, station USW00014933, 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.