Climate twins of Coopersville, MI

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

Top match: Oakfield, NY

Month Coopersville Oakfield
High Low Precip High Low Precip
January 31.7°F 13.7°F 2.65 in 31.0°F 15.8°F 2.47 in
February 35.2°F 13.7°F 1.84 in 33.1°F 16.6°F 1.90 in
March 45.3°F 21.8°F 2.59 in 42.4°F 24.3°F 2.43 in
April 57.5°F 32.4°F 3.82 in 55.7°F 34.9°F 3.17 in
May 69.5°F 43.8°F 4.17 in 67.9°F 46.7°F 3.23 in
June 79.4°F 53.2°F 3.84 in 76.4°F 56.1°F 3.69 in
July 83.3°F 56.9°F 3.19 in 80.0°F 60.7°F 3.53 in
August 81.4°F 55.5°F 3.33 in 78.5°F 59.3°F 3.25 in
September 74.6°F 48.2°F 3.08 in 72.4°F 52.4°F 3.62 in
October 61.8°F 37.9°F 4.06 in 60.0°F 41.8°F 3.60 in
November 47.2°F 28.5°F 3.46 in 47.6°F 31.8°F 2.92 in
December 36.1°F 21.0°F 2.50 in 36.2°F 22.3°F 2.76 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 →