Climate twins of Thiensville, WI

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

Top match: Owosso, MI

Month Thiensville Owosso
High Low Precip High Low Precip
January 30.0°F 17.0°F 1.58 in 30.3°F 15.7°F 2.10 in
February 33.1°F 18.5°F 1.73 in 33.1°F 16.3°F 1.82 in
March 42.7°F 26.4°F 2.07 in 43.3°F 23.8°F 1.98 in
April 54.1°F 36.2°F 3.94 in 56.5°F 34.5°F 3.62 in
May 65.7°F 46.2°F 3.99 in 68.7°F 46.2°F 4.15 in
June 75.5°F 56.0°F 4.50 in 78.1°F 56.0°F 3.50 in
July 81.1°F 62.0°F 3.61 in 81.9°F 59.7°F 3.55 in
August 79.8°F 60.7°F 3.77 in 80.0°F 58.5°F 3.33 in
September 72.5°F 53.9°F 3.18 in 73.5°F 51.0°F 2.75 in
October 60.5°F 42.6°F 2.98 in 60.6°F 40.0°F 3.23 in
November 46.4°F 31.2°F 2.15 in 47.0°F 30.7°F 2.41 in
December 35.2°F 21.4°F 2.01 in 35.5°F 22.5°F 2.03 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 →