Climate twins of Winter, WI

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

Top match: Brook Park, MN

Month Winter Brook Park
High Low Precip High Low Precip
January 20.1°F 1.6°F 1.02 in 19.4°F -0.9°F 0.95 in
February 25.6°F 5.4°F 1.10 in 25.3°F 3.3°F 0.90 in
March 37.8°F 17.6°F 1.71 in 37.5°F 15.7°F 1.64 in
April 51.3°F 29.9°F 3.04 in 52.2°F 28.4°F 2.77 in
May 65.0°F 41.9°F 3.78 in 65.4°F 39.9°F 3.81 in
June 74.0°F 51.1°F 5.00 in 74.6°F 50.3°F 4.64 in
July 77.7°F 55.4°F 4.30 in 79.4°F 54.9°F 4.07 in
August 75.9°F 53.6°F 3.99 in 77.3°F 52.4°F 4.26 in
September 68.0°F 46.4°F 4.46 in 69.4°F 44.0°F 3.61 in
October 53.8°F 34.9°F 3.67 in 54.6°F 32.1°F 3.45 in
November 37.6°F 23.2°F 1.78 in 38.7°F 20.9°F 1.61 in
December 25.1°F 9.6°F 1.32 in 25.6°F 8.5°F 1.30 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 →