#1Keokuk
Lee County · 9,510 peopleJanuary low·July high 86°·117 freezing nights a year
Keokuk, #1 on this list · Photo: Billwhittaker at English Wikipedia · CC BY-SA 3.0Iowa rankings · Climate
Towns with the mildest winters in Iowa
Keokuk has the mildest winters of Iowa’s 142 towns of 2,500+: January nights average a low of 18° (NOAA 1991–2020 normals). The typical town here averages 12°; none of the 142 stay above freezing.
The average January low. NOAA U.S. Climate Normals, 1991–2020, from NOAA’s 5 km grid at each town’s center; one town for each grid cell. A described list: no letters. How grades work
#118°
#2Fort Madison
Lee County · 9,935 peopleJanuary low·July high 86°·110 freezing nights a year
#T3Burlington
Des Moines County · 23,336 peopleJanuary low·July high 86°·118 freezing nights a year
All 142 towns
January low, highest first. Towns with the same figure share a rank (T = tied; 111 towns here).
142 towns ranked. Not here? See why a town may be missing.
#TownJanuary lowNights ≤32°July high
Quick answers
Questions people ask
Which Iowa town has the mildest winters?
Keokuk (Lee County): January nights average a low of 18°. Fort Madison (16°) and Burlington (16°) follow.
How are these towns ranked?
By the average January low (the coldest month’s nights), highest first, on NOAA’s 1991–2020 normals, read from its 5 km grid at each town’s center. Towns with the same figure share a rank (T); the figure and the state rank are the ones on each town’s Climate page. How grades work.
Why isn’t my town on this list?
The list covers towns of 2,500+ residents, one for each of NOAA’s 5 km grid cells (142 in Iowa): where towns share a cell, one of them stands for it, since the grid gives them the same figures. Every town’s own figures are on its Climate page. Every town is on the Iowa page.
Go deeper
All Iowa rankings →More Iowa lists
Every list ranks the same 2,500+ towns, so a town’s rank means the same thing on each.
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