Climate twins of Earth, TX

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

Top match: Guymon, OK

Month Earth Guymon
High Low Precip High Low Precip
January 52.5°F 25.2°F 0.62 in 50.7°F 21.9°F 0.41 in
February 56.9°F 27.8°F 0.58 in 54.2°F 24.3°F 0.33 in
March 64.7°F 35.1°F 1.20 in 63.1°F 32.0°F 1.11 in
April 72.8°F 42.9°F 1.18 in 71.3°F 40.7°F 1.49 in
May 80.6°F 53.5°F 2.29 in 80.6°F 51.4°F 2.25 in
June 88.6°F 62.8°F 2.73 in 90.7°F 61.6°F 2.88 in
July 90.3°F 66.2°F 2.33 in 95.0°F 66.5°F 2.39 in
August 88.9°F 64.7°F 2.46 in 92.1°F 64.8°F 2.58 in
September 82.3°F 57.4°F 2.39 in 85.4°F 56.5°F 1.36 in
October 72.9°F 45.4°F 1.62 in 73.1°F 43.0°F 1.75 in
November 61.8°F 34.0°F 0.81 in 60.6°F 30.7°F 0.51 in
December 52.8°F 26.4°F 0.80 in 50.0°F 22.9°F 0.69 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 →