Climate twins of Fort Peck, MT

These are the US cities whose 12-month climate pattern most closely matches Fort Peck'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: Fort Peck vs its climate twin

Top match: Sidney, MT

Month	Fort Peck			Sidney
	High	Low	Precip	High	Low	Precip
January	28.3°F	7.5°F	0.30 in	27.2°F	6.5°F	0.45 in
February	33.2°F	11.6°F	0.30 in	32.0°F	10.6°F	0.37 in
March	46.2°F	22.4°F	0.38 in	45.8°F	21.0°F	0.58 in
April	60.0°F	33.7°F	0.92 in	60.5°F	31.8°F	1.17 in
May	70.7°F	43.8°F	2.52 in	71.3°F	42.7°F	2.40 in
June	79.6°F	53.0°F	2.67 in	79.1°F	52.3°F	2.78 in
July	88.6°F	58.5°F	2.39 in	86.6°F	57.3°F	2.65 in
August	88.3°F	56.8°F	1.40 in	86.4°F	55.1°F	1.30 in
September	76.6°F	47.6°F	1.05 in	75.8°F	45.5°F	1.62 in
October	60.9°F	36.6°F	0.94 in	59.4°F	33.6°F	1.08 in
November	44.1°F	23.7°F	0.36 in	41.9°F	21.2°F	0.59 in
December	32.3°F	12.5°F	0.35 in	30.6°F	10.7°F	0.51 in

Cities that consider Fort Peck their climate twin

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

Fairview, MT (ranks Fort Peck #2)
Sidney, MT (ranks Fort Peck #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 →