Climate twins of Platteville, WI

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

Top match: Floyd, IA

Month Platteville Floyd
High Low Precip High Low Precip
January 25.7°F 9.9°F 1.22 in 24.6°F 8.6°F 1.01 in
February 30.8°F 13.7°F 1.47 in 29.5°F 12.6°F 1.14 in
March 43.3°F 24.8°F 2.09 in 43.1°F 25.3°F 1.93 in
April 57.1°F 35.4°F 3.95 in 58.1°F 36.7°F 3.73 in
May 68.7°F 47.1°F 4.65 in 69.5°F 48.5°F 5.06 in
June 78.2°F 58.3°F 5.97 in 78.8°F 58.6°F 6.13 in
July 81.8°F 61.8°F 5.29 in 82.0°F 62.1°F 4.92 in
August 80.1°F 59.8°F 4.23 in 79.6°F 59.7°F 4.28 in
September 73.2°F 51.2°F 4.25 in 73.4°F 51.3°F 3.82 in
October 60.3°F 39.1°F 2.82 in 60.3°F 38.8°F 2.58 in
November 44.6°F 28.0°F 2.25 in 43.7°F 26.3°F 1.74 in
December 31.6°F 16.7°F 1.79 in 29.8°F 15.1°F 1.38 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 →