Doon climate

Doon Weather in May

NOAA 1991-2020 normals for Rock Rapids, 17.6 km from Doon

Average highs run from 64°F on May 1 to 76°F on May 31, and lows from 40°F to 54°F. Normal precipitation for the month is 3.96 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 Doon, in °F, with the record for each date.020406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

May at a glance

Average high
70°F
Average low
47°F
Precipitation
3.96 in
Snowfall
0.1 in
Record high
105°FMay 30, 1934
Record low
17°FMay 3, 1967
Chance of a freeze
52%
Days of 90°F or more
1.3
Daylight
14 h 09 min to 15 h 10 min
Cloud cover
65%
Humidity
69%
Dew point
47°F
Wind
12.1 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 164°F40°F95°F 198722°F 190934%2%
May 265°F40°F94°F 198721°F 190935%1%
May 365°F41°F92°F 201217°F 196735%1%
May 466°F41°F89°F 191822°F 196735%1%
May 566°F42°F92°F 190926°F 195436%1%
May 666°F42°F94°F 193425°F 192536%1%
May 767°F43°F93°F 199025°F 195436%1%
May 867°F43°F97°F 193424°F 195436%1%
May 968°F44°F92°F 198726°F 196636%1%
May 1068°F44°F94°F 201121°F 190737%1%
May 1168°F44°F94°F 201130°F 196037%1%
May 1269°F45°F94°F 202228°F 196937%0%
May 1369°F45°F95°F 198726°F 199737%0%
May 1470°F46°F102°F 201327°F 192137%0%
May 1570°F46°F99°F 201326°F 195937%0%
May 1670°F47°F96°F 200127°F 201437%0%
May 1771°F47°F94°F 198728°F 192537%0%
May 1871°F48°F99°F 193431°F 191538%0%
May 1972°F48°F99°F 193432°F 191638%0%
May 2072°F49°F98°F 193428°F 190738%0%
May 2172°F49°F98°F 193425°F 193138%0%
May 2273°F50°F94°F 192524°F 196338%0%
May 2373°F50°F93°F 200635°F 196338%0%
May 2474°F51°F93°F 201028°F 192438%0%
May 2574°F51°F104°F 196731°F 190139%0%
May 2674°F52°F102°F 196734°F 190539%0%
May 2775°F52°F101°F 201832°F 190739%0%
May 2875°F52°F99°F 201831°F 196538%0%
May 2975°F53°F102°F 193437°F 198338%0%
May 3076°F53°F105°F 193435°F 193038%0%
May 3176°F54°F102°F 193434°F 196438%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Doon, 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 6:18 AM, sunset 8:27 PM
May 31
sunrise 5:48 AM, sunset 8:58 PM

Every day of May: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00137147 (Rock Rapids), public domain. Records: NOAA GHCN-Daily, station USC00137700, 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.