Climate twins of Coulterville, IL

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

Top match: Mountain Grove, MO

Month Coulterville Mountain Grove
High Low Precip High Low Precip
January 40.1°F 21.6°F 3.11 in 41.4°F 22.4°F 2.82 in
February 45.1°F 25.2°F 2.57 in 46.6°F 25.9°F 2.67 in
March 55.5°F 33.2°F 3.95 in 55.8°F 34.2°F 4.13 in
April 66.8°F 43.2°F 5.16 in 66.2°F 44.0°F 5.05 in
May 75.7°F 54.1°F 5.17 in 74.3°F 53.4°F 5.41 in
June 84.3°F 62.4°F 4.31 in 82.4°F 62.4°F 3.93 in
July 87.7°F 65.6°F 4.68 in 87.1°F 66.5°F 4.51 in
August 86.8°F 63.6°F 3.54 in 86.5°F 65.1°F 3.42 in
September 80.8°F 55.4°F 3.03 in 79.3°F 57.1°F 4.02 in
October 69.9°F 44.2°F 3.34 in 68.0°F 46.0°F 3.33 in
November 55.8°F 34.5°F 4.08 in 55.0°F 35.3°F 3.91 in
December 44.0°F 26.0°F 2.70 in 44.6°F 26.5°F 2.73 in

Cities that consider Coulterville their climate twin

These US cities have Coulterville in their top 3 most-similar list — meaning if you were to move from any of these places, Coulterville would feel familiar.

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 →