Climate twins of Poplar, MT

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

Top match: Noonan, ND

Month	Poplar			Noonan
	High	Low	Precip	High	Low	Precip
January	23.4°F	-0.1°F	0.43 in	19.5°F	0.0°F	0.52 in
February	27.7°F	4.6°F	0.30 in	23.9°F	3.8°F	0.40 in
March	40.4°F	16.1°F	0.59 in	37.1°F	15.9°F	0.60 in
April	55.8°F	27.4°F	1.03 in	54.5°F	28.6°F	0.95 in
May	66.9°F	37.9°F	2.19 in	67.2°F	40.2°F	2.23 in
June	75.7°F	47.5°F	2.94 in	75.3°F	50.4°F	3.23 in
July	83.6°F	52.9°F	2.57 in	81.0°F	55.2°F	2.68 in
August	83.6°F	51.0°F	1.38 in	80.8°F	53.1°F	1.66 in
September	72.5°F	40.1°F	1.07 in	69.9°F	43.7°F	1.77 in
October	56.1°F	27.2°F	0.87 in	53.4°F	31.0°F	1.10 in
November	39.1°F	13.9°F	0.43 in	35.7°F	17.1°F	0.53 in
December	26.8°F	2.9°F	0.39 in	23.2°F	5.0°F	0.43 in

Cities that consider Poplar their climate twin

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

White Earth, ND (ranks Poplar #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 →