Earlham climate

Earlham Weather in May

NOAA 1991-2020 normals for Winterset 1S, 21.6 km from Earlham

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 Earlham, in °F, with the record for each date.020406080100120151015202530
  • 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
105°FMay 30, 1934
Record low
20°FMay 4, 1907
Chance of a freeze
48%
Daylight
14 h 01 min to 14 h 57 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 200725°F 190938%1%
May 266°F42°F90°F 198725°F 192538%1%
May 366°F42°F91°F 191825°F 200538%1%
May 467°F43°F95°F 191820°F 190739%1%
May 567°F43°F94°F 190924°F 196839%1%
May 667°F44°F99°F 193428°F 192539%0%
May 768°F44°F92°F 193420°F 193139%0%
May 868°F45°F96°F 193429°F 198039%0%
May 968°F45°F95°F 193426°F 194739%0%
May 1069°F46°F93°F 202229°F 196639%0%
May 1169°F46°F89°F 198726°F 192539%0%
May 1269°F46°F96°F 200029°F 192839%0%
May 1370°F47°F94°F 194029°F 199739%0%
May 1470°F47°F92°F 193232°F 199738%0%
May 1570°F48°F98°F 201331°F 192638%0%
May 1671°F48°F92°F 193930°F 192938%0%
May 1771°F49°F94°F 191734°F 193038%0%
May 1872°F49°F96°F 193433°F 191638%0%
May 1972°F49°F96°F 193431°F 192938%0%
May 2072°F50°F95°F 192530°F 190738%0%
May 2173°F50°F92°F 192529°F 193138%0%
May 2273°F51°F101°F 192531°F 193138%0%
May 2373°F51°F93°F 193932°F 196338%0%
May 2474°F51°F101°F 193935°F 193538%0%
May 2574°F52°F96°F 196728°F 192538%0%
May 2674°F52°F98°F 192635°F 192538%0%
May 2775°F53°F98°F 201834°F 190738%0%
May 2875°F53°F92°F 193431°F 194738%0%
May 2975°F53°F104°F 193430°F 194738%0%
May 3076°F54°F105°F 193436°F 193038%0%
May 3176°F54°F104°F 193437°F 193038%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Earlham, 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 8:43 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 USC00136566, 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.