Climate twins of Poplar, WI

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

Top match: Tomahawk, WI

Month Poplar Tomahawk
High Low Precip High Low Precip
January 20.2°F 1.8°F 1.06 in 20.5°F 2.2°F 1.18 in
February 25.7°F 5.3°F 1.04 in 25.6°F 3.3°F 1.08 in
March 37.3°F 17.6°F 1.63 in 36.9°F 14.6°F 1.81 in
April 50.2°F 29.0°F 2.75 in 50.2°F 28.7°F 2.86 in
May 64.3°F 39.9°F 3.66 in 64.0°F 42.5°F 3.60 in
June 73.3°F 49.7°F 4.11 in 72.7°F 53.0°F 4.16 in
July 77.6°F 55.4°F 4.38 in 76.5°F 57.2°F 3.68 in
August 75.2°F 53.9°F 4.47 in 74.3°F 55.3°F 3.43 in
September 66.7°F 46.3°F 3.57 in 66.4°F 47.8°F 3.57 in
October 52.9°F 34.9°F 3.28 in 53.0°F 35.7°F 2.96 in
November 37.7°F 23.4°F 2.05 in 38.0°F 23.2°F 1.76 in
December 25.2°F 10.2°F 1.44 in 25.7°F 10.7°F 1.44 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 →