Climate twins of Libby, MT

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

Top match: Northport, WA

Month Libby Northport
High Low Precip High Low Precip
January 34.4°F 21.5°F 1.92 in 31.1°F 20.5°F 2.24 in
February 40.9°F 22.2°F 1.29 in 38.7°F 22.0°F 1.32 in
March 51.8°F 26.8°F 1.73 in 49.1°F 27.2°F 1.64 in
April 61.5°F 31.7°F 1.14 in 59.6°F 32.7°F 1.68 in
May 72.6°F 38.7°F 1.66 in 69.6°F 40.8°F 2.12 in
June 79.6°F 45.4°F 2.04 in 75.2°F 46.7°F 2.44 in
July 89.3°F 49.2°F 0.91 in 85.4°F 50.7°F 1.01 in
August 89.5°F 47.4°F 0.74 in 85.7°F 49.7°F 0.61 in
September 77.6°F 40.9°F 1.09 in 75.2°F 42.6°F 0.97 in
October 58.5°F 33.8°F 1.82 in 56.9°F 33.9°F 1.56 in
November 41.1°F 28.3°F 2.29 in 40.5°F 27.3°F 2.24 in
December 32.8°F 21.8°F 2.52 in 31.5°F 21.5°F 2.47 in

Cities that consider Libby their climate twin

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

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 →