Climate twins of Bozeman, MT

These are the US cities whose 12-month climate pattern most closely matches Bozeman's. Each "twin" must be at least 140 miles away to avoid trivial near-neighbor matches. Similarity is computed across all 24 monthly metrics (12 average temperatures + 12 average precipitations), normalized so temperature and precipitation contribute equally.

Side-by-side: Bozeman vs its climate twin

Top match: Ranchester, WY

Month	Bozeman			Ranchester
	High	Low	Precip	High	Low	Precip
January	34.2°F	15.1°F	0.86 in	35.9°F	10.2°F	0.82 in
February	36.8°F	16.6°F	0.83 in	38.1°F	12.0°F	0.89 in
March	46.1°F	23.9°F	1.42 in	47.0°F	20.0°F	1.49 in
April	54.5°F	30.5°F	2.51 in	55.3°F	28.8°F	2.06 in
May	63.2°F	38.8°F	2.93 in	65.2°F	37.5°F	3.36 in
June	71.7°F	45.6°F	3.27 in	75.1°F	45.0°F	1.99 in
July	82.1°F	51.7°F	1.33 in	85.2°F	51.2°F	1.16 in
August	81.3°F	50.0°F	1.32 in	84.3°F	49.7°F	0.88 in
September	71.4°F	42.4°F	1.44 in	73.2°F	40.3°F	1.55 in
October	57.3°F	32.4°F	1.84 in	58.9°F	30.1°F	1.86 in
November	42.3°F	22.2°F	1.25 in	45.6°F	18.2°F	1.15 in
December	33.3°F	14.5°F	1.03 in	35.7°F	10.0°F	0.82 in

Cities that consider Bozeman their climate twin

These US cities have Bozeman in their top 3 most-similar list — meaning if you were to move from any of these places, Bozeman would feel familiar.

Dayton, WY (ranks Bozeman #2)
Ranchester, WY (ranks Bozeman #3)
Grangeville, ID (ranks Bozeman #2)
White Bird, ID (ranks Bozeman #2)

How this is computed

Each city is represented by a 24-dimensional vector: 12 monthly average temperatures and 12 monthly average precipitations. Each dimension is z-score normalized across the population of US cities, so that temperature variance and precipitation variance contribute proportionally. Distance between cities is Euclidean. We filter out cities within 2° latitude/longitude (~140 miles) so that "twins" mean climatically similar but geographically distinct — not just the neighboring town. Full methodology →