Climate twins of Bison, SD

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

Top match: Harrold, SD

Month Bison Harrold
High Low Precip High Low Precip
January 29.6°F 9.7°F 0.46 in 27.1°F 3.3°F 0.49 in
February 32.8°F 12.4°F 0.56 in 32.3°F 7.5°F 0.44 in
March 45.1°F 21.8°F 0.87 in 44.4°F 18.6°F 0.82 in
April 57.4°F 31.5°F 1.76 in 57.6°F 28.7°F 1.93 in
May 68.2°F 42.7°F 3.11 in 68.9°F 41.1°F 2.73 in
June 77.9°F 52.4°F 3.15 in 79.2°F 52.6°F 3.30 in
July 86.2°F 58.6°F 2.50 in 86.9°F 58.3°F 2.68 in
August 85.6°F 57.0°F 1.83 in 85.5°F 55.9°F 1.93 in
September 76.4°F 47.5°F 1.38 in 77.5°F 45.6°F 1.80 in
October 59.7°F 34.7°F 1.52 in 61.0°F 30.9°F 1.44 in
November 43.4°F 22.5°F 0.52 in 44.4°F 17.9°F 0.54 in
December 31.9°F 12.9°F 0.44 in 31.0°F 7.2°F 0.54 in

Cities that consider Bison their climate twin

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