Climate twins of Martinsville, IN

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

Top match: Sabina, OH

Month Martinsville Sabina
High Low Precip High Low Precip
January 36.3°F 18.9°F 3.16 in 36.5°F 20.1°F 3.13 in
February 40.8°F 21.3°F 2.43 in 39.9°F 22.0°F 2.60 in
March 51.4°F 29.2°F 3.55 in 50.0°F 29.9°F 3.92 in
April 63.3°F 39.7°F 4.83 in 63.0°F 39.8°F 4.38 in
May 72.8°F 50.4°F 4.97 in 72.8°F 51.3°F 4.70 in
June 80.7°F 59.7°F 5.31 in 81.1°F 60.3°F 4.70 in
July 83.9°F 62.7°F 4.08 in 83.9°F 62.5°F 4.30 in
August 83.3°F 60.5°F 3.44 in 83.1°F 59.9°F 3.17 in
September 77.7°F 52.9°F 3.52 in 77.8°F 52.7°F 2.95 in
October 65.8°F 40.7°F 3.47 in 65.8°F 42.3°F 3.13 in
November 52.4°F 31.5°F 3.61 in 52.2°F 32.4°F 2.98 in
December 41.1°F 24.1°F 3.12 in 41.1°F 25.8°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 →