Climate twins of Carmel, IN

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

Top match: Lakeview, OH

Month Carmel Lakeview
High Low Precip High Low Precip
January 34.5°F 18.8°F 2.75 in 36.3°F 18.4°F 2.82 in
February 38.8°F 21.4°F 2.16 in 40.8°F 20.5°F 2.33 in
March 49.2°F 29.9°F 3.39 in 49.8°F 28.8°F 2.91 in
April 61.8°F 40.5°F 4.25 in 63.3°F 38.8°F 4.18 in
May 72.1°F 51.0°F 4.97 in 74.1°F 49.9°F 4.46 in
June 81.1°F 60.8°F 5.45 in 82.7°F 59.3°F 4.71 in
July 84.4°F 64.1°F 4.27 in 85.7°F 62.3°F 4.54 in
August 83.0°F 62.2°F 4.19 in 84.5°F 60.5°F 3.63 in
September 77.1°F 54.5°F 3.46 in 78.8°F 53.9°F 3.12 in
October 64.7°F 42.7°F 3.30 in 66.6°F 42.8°F 3.03 in
November 50.8°F 32.5°F 3.44 in 52.4°F 32.6°F 3.18 in
December 39.2°F 24.0°F 2.77 in 41.6°F 24.5°F 2.64 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 →