Climate twins of Unionville, MO

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

Top match: Buffalo, IA

Month Unionville Buffalo
High Low Precip High Low Precip
January 32.1°F 14.8°F 1.35 in 31.0°F 13.4°F 1.49 in
February 37.5°F 18.1°F 1.69 in 36.3°F 17.9°F 1.78 in
March 50.1°F 28.7°F 2.60 in 48.4°F 28.0°F 2.62 in
April 61.7°F 39.4°F 3.80 in 61.4°F 39.3°F 3.81 in
May 71.4°F 51.8°F 6.04 in 72.3°F 50.8°F 5.12 in
June 81.0°F 61.3°F 5.62 in 81.2°F 61.0°F 5.22 in
July 85.5°F 65.6°F 4.64 in 83.9°F 64.9°F 4.22 in
August 83.8°F 63.5°F 5.29 in 82.4°F 63.1°F 4.03 in
September 76.4°F 54.5°F 3.52 in 76.7°F 55.0°F 3.31 in
October 63.7°F 42.5°F 3.15 in 63.7°F 42.9°F 2.89 in
November 49.5°F 30.2°F 2.32 in 48.7°F 30.2°F 2.30 in
December 37.2°F 20.3°F 1.91 in 36.0°F 19.7°F 2.02 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 →