Climate twins of Grand Junction, CO

These are the US cities whose 12-month climate pattern most closely matches Grand Junction'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.

Rank 1 closest
Hanksville, UT
similarity distance: 1.206 (lower = more similar)
Rank 2 closest
Bloomfield, NM
similarity distance: 1.251 (lower = more similar)
Rank 3 closest
Bernalillo, NM
similarity distance: 1.285 (lower = more similar)

Side-by-side: Grand Junction vs its climate twin

Top match: Hanksville, UT

Month Grand Junction Hanksville
High Low Precip High Low Precip
January 39.0°F 19.4°F 0.77 in 43.1°F 15.2°F 0.40 in
February 46.7°F 26.0°F 0.65 in 51.2°F 21.1°F 0.39 in
March 58.6°F 34.5°F 0.87 in 63.8°F 28.9°F 0.47 in
April 66.9°F 41.0°F 1.06 in 70.8°F 35.3°F 0.45 in
May 76.7°F 50.0°F 1.27 in 81.1°F 44.4°F 0.43 in
June 89.2°F 59.1°F 0.60 in 93.4°F 52.7°F 0.23 in
July 94.5°F 66.0°F 0.89 in 98.7°F 60.9°F 0.71 in
August 90.8°F 63.9°F 1.03 in 95.2°F 58.3°F 0.57 in
September 82.0°F 55.0°F 1.47 in 86.3°F 47.9°F 0.83 in
October 67.1°F 41.8°F 1.27 in 71.5°F 35.1°F 0.87 in
November 52.1°F 30.2°F 0.81 in 55.7°F 23.6°F 0.47 in
December 39.1°F 21.0°F 0.68 in 42.9°F 15.0°F 0.34 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 →