Climate twins of Big Sandy, MT

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

Top match: Malta, MT

Month	Big Sandy			Malta
	High	Low	Precip	High	Low	Precip
January	30.8°F	9.8°F	0.45 in	28.6°F	6.6°F	0.36 in
February	35.2°F	13.4°F	0.39 in	32.4°F	10.6°F	0.37 in
March	46.0°F	22.0°F	0.47 in	45.0°F	21.0°F	0.51 in
April	58.4°F	32.6°F	1.27 in	59.0°F	32.8°F	1.27 in
May	67.9°F	41.2°F	2.07 in	68.8°F	42.4°F	1.72 in
June	75.9°F	48.9°F	3.12 in	76.9°F	51.8°F	2.68 in
July	85.9°F	54.6°F	1.40 in	86.3°F	57.4°F	1.58 in
August	84.8°F	53.4°F	0.99 in	85.6°F	55.7°F	1.27 in
September	73.7°F	44.2°F	1.16 in	74.4°F	45.5°F	1.41 in
October	58.7°F	32.5°F	0.93 in	59.4°F	33.2°F	1.03 in
November	43.6°F	21.5°F	0.60 in	43.3°F	20.4°F	0.69 in
December	33.5°F	13.0°F	0.43 in	31.3°F	10.2°F	0.46 in

Cities that consider Big Sandy their climate twin

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

Malta, MT (ranks Big Sandy #3)
Three Forks, MT (ranks Big Sandy #3)

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 →