Climate twins of Whitehall, WI

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

Top match: Morristown, MN

Month Whitehall Morristown
High Low Precip High Low Precip
January 24.0°F 4.1°F 1.01 in 23.2°F 4.8°F 0.97 in
February 29.3°F 8.2°F 1.21 in 28.0°F 7.9°F 1.00 in
March 41.4°F 20.7°F 1.66 in 40.4°F 20.4°F 1.92 in
April 55.5°F 32.4°F 3.31 in 55.5°F 32.9°F 3.13 in
May 67.6°F 44.7°F 4.76 in 68.2°F 45.2°F 4.37 in
June 77.5°F 55.2°F 5.04 in 78.4°F 57.2°F 5.57 in
July 81.3°F 58.8°F 4.44 in 82.0°F 60.6°F 4.64 in
August 79.4°F 56.2°F 4.64 in 79.9°F 57.9°F 4.66 in
September 71.7°F 48.1°F 4.07 in 72.7°F 49.7°F 3.68 in
October 57.9°F 34.7°F 2.51 in 58.9°F 35.7°F 2.60 in
November 42.4°F 23.9°F 1.78 in 42.4°F 23.8°F 1.67 in
December 29.2°F 12.1°F 1.18 in 28.9°F 12.6°F 1.24 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 →