Climate twins of Calhan, CO

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

Top match: Pine Bluffs, WY

Month Calhan Pine Bluffs
High Low Precip High Low Precip
January 43.4°F 15.5°F 0.24 in 41.4°F 17.3°F 0.27 in
February 44.9°F 17.3°F 0.31 in 43.0°F 17.4°F 0.40 in
March 53.1°F 24.0°F 0.77 in 52.3°F 23.5°F 0.89 in
April 60.0°F 30.7°F 1.59 in 58.3°F 30.6°F 1.48 in
May 69.3°F 41.3°F 2.07 in 68.8°F 40.4°F 2.71 in
June 80.6°F 50.6°F 1.82 in 80.2°F 50.4°F 2.52 in
July 86.1°F 56.1°F 2.71 in 87.4°F 56.3°F 2.67 in
August 83.3°F 55.0°F 2.66 in 85.7°F 53.7°F 1.92 in
September 77.0°F 45.8°F 1.00 in 77.2°F 44.5°F 1.39 in
October 63.8°F 33.8°F 0.84 in 63.0°F 33.3°F 1.09 in
November 51.5°F 22.7°F 0.36 in 50.8°F 23.2°F 0.66 in
December 42.8°F 16.0°F 0.27 in 41.1°F 16.5°F 0.34 in

Cities that consider Calhan their climate twin

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