Climate twins of New Plymouth, ID

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

Top match: Twin Falls, ID

Month	New Plymouth			Twin Falls
	High	Low	Precip	High	Low	Precip
January	35.8°F	22.7°F	1.30 in	40.4°F	22.4°F	1.04 in
February	43.6°F	25.9°F	0.79 in	45.6°F	24.7°F	0.78 in
March	55.7°F	32.0°F	1.00 in	55.9°F	31.9°F	0.87 in
April	63.2°F	37.8°F	0.87 in	62.6°F	35.8°F	1.02 in
May	73.6°F	46.7°F	1.41 in	72.7°F	44.8°F	1.22 in
June	82.3°F	54.1°F	0.68 in	81.0°F	51.7°F	0.67 in
July	93.4°F	60.1°F	0.25 in	92.1°F	58.3°F	0.16 in
August	91.4°F	57.0°F	0.10 in	90.5°F	55.5°F	0.34 in
September	80.9°F	47.3°F	0.34 in	79.9°F	47.4°F	0.33 in
October	64.6°F	36.0°F	0.77 in	66.9°F	37.0°F	0.70 in
November	47.3°F	27.6°F	0.90 in	50.7°F	28.0°F	0.76 in
December	36.3°F	22.3°F	1.58 in	39.6°F	22.6°F	1.31 in

Cities that consider New Plymouth their climate twin

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

Brewster, WA (ranks New Plymouth #2)
Bridgeport, WA (ranks New Plymouth #2)
Mansfield, WA (ranks New Plymouth #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 →