Climate twins of Mount Vernon, IN

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

Top match: Addyston, OH

Month Mount Vernon Addyston
High Low Precip High Low Precip
January 41.6°F 22.9°F 3.53 in 39.8°F 24.3°F 3.65 in
February 46.0°F 25.7°F 2.93 in 44.0°F 25.9°F 3.12 in
March 55.5°F 33.8°F 4.53 in 53.8°F 33.6°F 4.37 in
April 67.4°F 43.7°F 5.06 in 65.9°F 42.8°F 4.96 in
May 76.7°F 54.4°F 4.98 in 74.9°F 53.5°F 5.15 in
June 85.0°F 63.7°F 4.63 in 82.6°F 62.4°F 4.78 in
July 87.9°F 66.6°F 3.64 in 85.7°F 66.5°F 4.08 in
August 87.3°F 64.7°F 2.95 in 85.0°F 65.1°F 3.34 in
September 81.6°F 57.3°F 3.20 in 79.4°F 57.4°F 3.31 in
October 70.3°F 45.4°F 3.49 in 67.6°F 45.9°F 3.51 in
November 56.6°F 35.3°F 3.89 in 55.1°F 36.3°F 3.19 in
December 45.9°F 27.3°F 3.79 in 44.1°F 29.3°F 4.03 in

Cities that consider Mount Vernon their climate twin

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