Climate twins of Harrisville, OH

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

Top match: Huntsville, OH

Month Harrisville Huntsville
High Low Precip High Low Precip
January 34.2°F 19.8°F 3.55 in 33.5°F 17.6°F 3.04 in
February 37.7°F 21.8°F 2.64 in 37.1°F 19.7°F 2.46 in
March 47.4°F 29.6°F 3.33 in 47.5°F 28.5°F 3.20 in
April 60.5°F 40.0°F 3.67 in 60.7°F 38.8°F 4.11 in
May 69.9°F 50.8°F 4.07 in 71.3°F 50.6°F 4.31 in
June 78.0°F 59.6°F 4.59 in 79.5°F 59.9°F 4.96 in
July 81.5°F 63.4°F 3.96 in 82.6°F 63.0°F 4.45 in
August 80.9°F 62.1°F 3.52 in 81.3°F 61.5°F 3.90 in
September 74.7°F 54.9°F 3.95 in 76.0°F 54.4°F 3.18 in
October 62.5°F 43.5°F 3.23 in 63.7°F 42.5°F 2.82 in
November 50.1°F 33.2°F 3.07 in 49.9°F 32.1°F 3.13 in
December 38.7°F 25.4°F 3.00 in 38.4°F 23.6°F 3.08 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 →