Climate twins of Harveysburg, OH

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

Top match: Southport, IN

Month Harveysburg Southport
High Low Precip High Low Precip
January 37.6°F 22.7°F 3.39 in 34.2°F 18.9°F 3.08 in
February 41.7°F 25.2°F 2.66 in 39.1°F 21.7°F 2.34 in
March 51.9°F 33.6°F 3.74 in 49.7°F 30.5°F 3.71 in
April 64.8°F 43.5°F 4.56 in 61.9°F 41.3°F 4.46 in
May 73.4°F 53.7°F 4.82 in 72.3°F 52.4°F 4.99 in
June 80.8°F 62.0°F 4.72 in 80.9°F 61.6°F 5.42 in
July 83.4°F 64.8°F 3.98 in 83.7°F 64.4°F 3.87 in
August 82.2°F 62.7°F 3.25 in 82.6°F 62.6°F 3.56 in
September 77.1°F 56.1°F 2.72 in 76.8°F 55.1°F 3.21 in
October 66.1°F 45.7°F 3.10 in 64.6°F 43.5°F 3.23 in
November 53.3°F 35.9°F 3.07 in 50.6°F 32.7°F 3.44 in
December 42.0°F 27.9°F 3.25 in 39.2°F 24.2°F 3.27 in

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 →