Climate twins of McCordsville, IN

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

Top match: Marble Cliff, OH

Month McCordsville Marble Cliff
High Low Precip High Low Precip
January 35.7°F 19.8°F 3.32 in 36.5°F 20.9°F 3.09 in
February 40.6°F 22.7°F 2.66 in 40.3°F 22.6°F 2.63 in
March 51.3°F 32.1°F 3.86 in 50.6°F 31.0°F 3.88 in
April 64.3°F 42.0°F 4.61 in 64.2°F 40.8°F 4.04 in
May 73.8°F 52.1°F 4.94 in 74.1°F 51.4°F 4.78 in
June 81.9°F 61.7°F 5.56 in 82.0°F 61.1°F 4.70 in
July 84.8°F 65.1°F 4.67 in 85.0°F 64.6°F 4.28 in
August 82.9°F 63.3°F 3.89 in 84.1°F 62.5°F 3.84 in
September 76.7°F 55.9°F 3.56 in 78.1°F 54.6°F 3.78 in
October 64.6°F 44.5°F 3.43 in 65.8°F 43.4°F 3.19 in
November 51.5°F 33.7°F 3.51 in 52.3°F 32.9°F 3.04 in
December 39.9°F 25.2°F 3.17 in 40.9°F 26.8°F 3.41 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 →