Climate twins of East Dubuque, IL

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

Top match: Haverhill, IA

Month East Dubuque Haverhill
High Low Precip High Low Precip
January 27.5°F 10.1°F 1.32 in 27.5°F 9.0°F 0.97 in
February 32.2°F 13.1°F 1.44 in 32.3°F 13.0°F 1.16 in
March 44.7°F 25.4°F 2.10 in 45.4°F 24.9°F 2.10 in
April 58.5°F 37.5°F 3.77 in 59.5°F 35.9°F 3.82 in
May 70.9°F 49.3°F 4.44 in 70.7°F 48.5°F 4.94 in
June 80.9°F 59.9°F 5.64 in 80.4°F 59.2°F 5.93 in
July 84.5°F 64.2°F 5.32 in 83.5°F 62.7°F 4.58 in
August 82.1°F 62.3°F 3.75 in 81.5°F 59.7°F 4.37 in
September 75.0°F 54.0°F 3.88 in 75.4°F 50.6°F 3.85 in
October 61.4°F 41.7°F 3.08 in 62.2°F 38.6°F 2.66 in
November 45.7°F 29.2°F 2.35 in 46.5°F 26.3°F 2.10 in
December 32.9°F 17.7°F 1.74 in 33.5°F 15.6°F 1.39 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 →