Calhoun County climate

Calhoun County Weather in May

NOAA 1991-2020 normals for Rockwell City, 1.6 km from Calhoun County

Average highs run from 65°F on May 1 to 75°F on May 31, and lows from 42°F to 55°F. Normal precipitation for the month is 5.02 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 Calhoun County, 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
49°F
Precipitation
5.02 in
Record high
107°FMay 30, 1934
Record low
18°FMay 4, 1907
Chance of a freeze
31%
Days of 90°F or more
0.6
Daylight
14 h 04 min to 15 h 03 min
Cloud cover
65%
Humidity
71%
Dew point
50°F
Wind
11.9 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 165°F42°F89°F 195921°F 190937%1%
May 265°F42°F91°F 196820°F 190837%1%
May 365°F43°F88°F 194925°F 190938%1%
May 466°F43°F89°F 191818°F 190738%1%
May 566°F44°F92°F 191822°F 195438%1%
May 667°F44°F98°F 193425°F 192538%1%
May 767°F45°F94°F 196627°F 195438%1%
May 867°F45°F97°F 193428°F 198038%0%
May 968°F46°F94°F 189525°F 196638%0%
May 1068°F46°F94°F 202227°F 190939%0%
May 1168°F47°F97°F 201127°F 190739%0%
May 1269°F47°F93°F 202228°F 189539%0%
May 1369°F47°F95°F 202228°F 199739%0%
May 1469°F48°F92°F 191530°F 193739%0%
May 1570°F48°F100°F 201328°F 195939%0%
May 1670°F49°F93°F 193929°F 190739%0%
May 1770°F49°F93°F 193430°F 192539%0%
May 1871°F50°F98°F 193431°F 191639%0%
May 1971°F50°F98°F 193426°F 189439%0%
May 2071°F51°F96°F 193429°F 195439%0%
May 2172°F51°F94°F 192530°F 193139%0%
May 2272°F52°F99°F 192526°F 196339%0%
May 2373°F52°F93°F 193928°F 196339%0%
May 2473°F52°F101°F 193931°F 192439%0%
May 2573°F53°F102°F 196732°F 192539%0%
May 2674°F53°F97°F 192631°F 190539%0%
May 2774°F54°F97°F 201832°F 190739%0%
May 2874°F54°F95°F 189531°F 197139%0%
May 2975°F54°F106°F 193429°F 194739%0%
May 3075°F55°F107°F 193431°F 190338%0%
May 3175°F55°F105°F 193432°F 189738%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Calhoun 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 6:14 AM, sunset 8:18 PM
May 31
sunrise 5:45 AM, sunset 8:48 PM

Every day of May: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00137161 (Rockwell City), public domain. Records: NOAA GHCN-Daily, station USC00131233, 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.