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Montana rankings · Climate

Towns with the hottest summers in Montana

Ranked by the typical afternoon high in July, 1991–2020, from NOAA’s gridded climate normals for each town. Neighboring towns on the same 5 km grid square have the same numbers, so each square is listed once, under its largest town. 43 towns with 2,500+ residents.

Other MT lists
Libby’s spot
#10of 43
85.9°July high
The race around Libby

Just behind Missoula, just ahead of Wolf Point

All 43 towns

July high, highest first.

#TownJuly highDays at 90°+July low
1 Miles City8,407 people 90.0° 4158°
2 Hardin3,742 people 89.6° 5256°
3 Billings119,434 people 88.5° 4157°
4 Laurel7,215 people 87.9° 4156°
5 Lockwood7,181 people 87.6° 4157°
6 Glendive4,810 people 87.5° 3858°
7 Glasgow3,190 people 86.5° 3357°
8 Orchard Homes5,588 people 86.3° 2751°
9 Missoula76,514 people 86.1° 2751°
10 Libby3,042 people 85.9° 2350°
11 Wolf Point2,602 people 85.8° 3056°
12 Lolo4,314 people 85.7° 2750°
13 Hamilton5,101 people 85.6° 2250°
14 Helena Valley Northeast4,659 people 85.5° 2752°
15 Sidney6,171 people 85.3° 3056°
16 Havre9,258 people 85.2° 2754°
17 Livingston8,780 people 85.2° 2851°
18 Helena Valley West Central8,056 people 85.0° 2752°
19 Helena33,639 people 84.8° 2752°
20 Helena Valley Southeast9,108 people 84.8° 2753°
21 Belgrade11,872 people 84.5° 2350°
22 Helena Valley Northwest5,183 people 84.5° 2751°
23 Great Falls60,329 people 84.4° 2252°
24 Malmstrom AFB4,302 people 84.4° 2252°
25 Four Corners5,791 people 84.1° 1350°
26 Montana City3,092 people 83.4° 2751°
27 Bozeman56,114 people 83.3° 1250°
28 Dillon4,085 people 83.2° 1448°
29 Deer Lodge3,021 people 82.9° 946°
30 Kalispell28,504 people 82.6° 1450°
31 Polson5,428 people 82.6° 1852°
32 Conrad2,618 people 82.5° 1251°
33 Evergreen9,611 people 82.4° 1450°
34 Shelby3,216 people 82.4° 1851°
35 Lewistown6,087 people 82.2° 1350°
36 Whitefish8,749 people 82.1° 1349°
37 Columbia Falls5,615 people 81.7° 1449°
38 Bigfork5,565 people 81.6° 750°
39 Cut Bank3,028 people 80.1° 950°
40 Red Lodge2,502 people 79.2° 653°
41 Butte-Silver Bow35,785 people 78.7° 747°
42 North Browning3,144 people 76.9° 248°
43 Anaconda-Deer Lodge County9,597 people 66.9° —42°
How it works

How this ranking works

The MT list, with the map →

We rank every town by the typical afternoon high in July, 1991–2020, from NOAA’s gridded climate normals for each town. The town with the highest figure ranks #1. Normals are 30-year averages, not a forecast, and each town’s Climate page shows its whole year month by month.

Temperatures and rainfall come from NOAA’s gridded normals, about 5 km (3 miles) square, read at each town’s center, so hills and coastlines are built in. Towns whose centers fall in the same square have the same numbers, so only the largest of them is listed.

Only towns with at least 2,500 residents are ranked; Census estimates for smaller places are too uncertain. Population and income: U.S. Census Bureau American Community Survey 5-year estimates. Climate: NOAA NCEI U.S. Climate Normals, 1991–2020. Town photos: Wikimedia Commons, credited on each town’s page.

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