Climate twins of Optima, OK

These are the US cities whose 12-month climate pattern most closely matches Optima'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
Tulia, TX
similarity distance: 1.047 (lower = more similar)
Rank 2 closest
Hale Center, TX
similarity distance: 1.120 (lower = more similar)
Rank 3 closest
Edmonson, TX
similarity distance: 1.120 (lower = more similar)

Side-by-side: Optima vs its climate twin

Top match: Tulia, TX

Month Optima Tulia
High Low Precip High Low Precip
January 48.9°F 21.2°F 0.55 in 51.1°F 22.7°F 0.70 in
February 52.9°F 23.2°F 0.43 in 55.0°F 25.6°F 0.69 in
March 61.7°F 31.5°F 1.26 in 63.3°F 32.6°F 1.36 in
April 70.7°F 40.9°F 1.40 in 71.4°F 40.1°F 1.46 in
May 80.2°F 51.7°F 2.46 in 79.8°F 50.9°F 2.70 in
June 90.2°F 61.8°F 2.91 in 88.4°F 61.1°F 2.94 in
July 94.1°F 66.5°F 2.86 in 91.1°F 64.9°F 2.41 in
August 92.1°F 65.1°F 2.35 in 89.5°F 63.5°F 2.65 in
September 85.6°F 56.9°F 1.27 in 82.4°F 56.0°F 1.99 in
October 72.3°F 43.6°F 1.98 in 72.3°F 43.9°F 1.91 in
November 59.3°F 31.1°F 0.59 in 60.4°F 31.7°F 0.96 in
December 48.6°F 22.2°F 1.05 in 51.3°F 24.2°F 0.77 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 →