Climate twins of Rockland, ME

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

Top match: Springville, NY

Month Rockland Springville
High Low Precip High Low Precip
January 30.3°F 12.0°F 4.75 in 29.5°F 15.8°F 4.84 in
February 32.5°F 13.6°F 4.20 in 30.7°F 15.6°F 3.88 in
March 39.6°F 22.2°F 5.01 in 39.2°F 22.5°F 3.65 in
April 51.4°F 33.6°F 5.21 in 52.7°F 33.7°F 4.45 in
May 62.4°F 44.1°F 4.22 in 64.9°F 45.9°F 4.14 in
June 70.8°F 53.5°F 4.49 in 73.3°F 55.0°F 4.52 in
July 76.7°F 59.6°F 3.20 in 77.3°F 59.3°F 4.38 in
August 76.3°F 59.2°F 3.37 in 75.7°F 57.7°F 4.04 in
September 69.0°F 51.9°F 4.49 in 70.2°F 51.3°F 4.63 in
October 57.2°F 40.9°F 6.07 in 57.3°F 40.9°F 5.39 in
November 46.7°F 31.1°F 5.27 in 45.1°F 31.7°F 4.81 in
December 36.4°F 20.2°F 5.92 in 34.8°F 22.6°F 4.53 in

Cities that consider Rockland their climate twin

These US cities have Rockland in their top 3 most-similar list — meaning if you were to move from any of these places, Rockland 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 →