#1Miles City
Custer County · 8,450 peopleJuly high·January low 8°·41 days of 90°+ a year
Miles City, #1 on this list · Photo: Larry D. Moore · CC BY 4.0Montana rankings · Climate
Towns with the hottest summers in Montana
Miles City has the hottest summers of Montana’s 43 towns of 2,500+: July afternoons average a high of 90° (NOAA 1991–2020 normals). The typical town here averages 84°; 1 of the 43 average 90° or more.
The average July high. 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
#190°
#2Hardin
Big Horn County · 3,696 peopleJuly high·January low 11°·52 days of 90°+ a year
#3Billings
Yellowstone County · 121,239 peopleJuly high·January low 15°·32 days of 90°+ a year
All 43 towns
July high, highest first. Towns with the same figure share a rank (T = tied; 12 towns here).
43 towns ranked. Not here? See why a town may be missing.
#TownJuly highDays ≥90°January low
Quick answers
Questions people ask
Which Montana town has the hottest summers?
Miles City (Custer County): July afternoons average a high of 90°. Hardin (90°) and Billings (88°) follow.
How are these towns ranked?
By the average July high (the warmest month’s afternoons), 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 (43 in Montana): 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 Montana page.
Go deeper
All Montana rankings →More Montana lists
Every list ranks the same 2,500+ towns, so a town’s rank means the same thing on each.
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