Climate twins of Shelbyville, IL

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

Top match: Foristell, MO

Month Shelbyville Foristell
High Low Precip High Low Precip
January 35.9°F 19.2°F 2.60 in 38.9°F 19.6°F 2.35 in
February 41.1°F 22.9°F 2.07 in 44.3°F 23.1°F 2.18 in
March 51.9°F 32.1°F 2.71 in 54.9°F 32.9°F 2.64 in
April 64.0°F 43.1°F 4.33 in 66.4°F 43.4°F 4.63 in
May 73.7°F 54.3°F 4.65 in 75.1°F 52.9°F 5.12 in
June 82.5°F 63.4°F 4.68 in 83.7°F 62.8°F 4.51 in
July 86.0°F 66.6°F 4.06 in 87.8°F 66.4°F 3.93 in
August 84.9°F 64.6°F 3.41 in 86.5°F 64.5°F 3.54 in
September 79.6°F 56.6°F 3.06 in 79.7°F 56.1°F 3.48 in
October 67.1°F 44.8°F 3.57 in 68.0°F 44.6°F 3.23 in
November 52.3°F 33.5°F 3.71 in 54.5°F 34.1°F 3.46 in
December 40.6°F 24.7°F 2.59 in 43.0°F 25.1°F 2.40 in

Cities that consider Shelbyville their climate twin

These US cities have Shelbyville in their top 3 most-similar list — meaning if you were to move from any of these places, Shelbyville 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 →