Climate twins of Quimby, IA

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

Top match: Red Wing, MN

Month Quimby Red Wing
High Low Precip High Low Precip
January 26.7°F 7.1°F 0.65 in 23.3°F 5.7°F 0.78 in
February 31.7°F 11.1°F 0.78 in 28.1°F 9.1°F 0.88 in
March 44.7°F 23.3°F 1.66 in 40.6°F 22.2°F 1.67 in
April 58.9°F 34.4°F 3.17 in 55.5°F 35.8°F 2.88 in
May 70.5°F 46.9°F 4.28 in 68.4°F 47.9°F 4.06 in
June 80.8°F 58.0°F 5.20 in 78.2°F 58.2°F 5.09 in
July 84.3°F 62.1°F 3.40 in 82.4°F 62.4°F 3.82 in
August 81.9°F 59.4°F 4.12 in 80.2°F 60.1°F 4.45 in
September 75.4°F 49.8°F 3.29 in 72.7°F 51.9°F 3.66 in
October 62.0°F 36.4°F 2.25 in 58.5°F 39.1°F 2.48 in
November 45.5°F 24.0°F 1.46 in 42.1°F 26.3°F 1.63 in
December 31.8°F 12.9°F 0.93 in 29.0°F 14.0°F 1.01 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 →