Climate twins of Douglas, AZ

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

Top match: Van Horn, TX

Month Douglas Van Horn
High Low Precip High Low Precip
January 65.2°F 30.9°F 0.91 in 59.1°F 30.0°F 0.47 in
February 68.5°F 35.1°F 0.74 in 64.2°F 33.8°F 0.44 in
March 73.2°F 39.6°F 0.61 in 71.6°F 40.6°F 0.25 in
April 81.0°F 45.2°F 0.17 in 78.8°F 47.9°F 0.22 in
May 88.8°F 53.4°F 0.40 in 86.6°F 57.3°F 0.49 in
June 97.1°F 61.7°F 0.53 in 94.5°F 66.4°F 1.10 in
July 95.4°F 66.1°F 3.45 in 92.9°F 68.3°F 2.05 in
August 92.7°F 65.4°F 3.20 in 91.9°F 67.1°F 1.95 in
September 90.2°F 60.1°F 1.67 in 85.9°F 60.6°F 1.50 in
October 83.3°F 48.7°F 0.78 in 78.7°F 49.8°F 0.94 in
November 74.0°F 37.7°F 0.64 in 68.1°F 38.3°F 0.42 in
December 65.1°F 30.4°F 0.86 in 59.2°F 30.9°F 0.49 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 →