Climate twins of Towanda, IL

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

Top match: Zanesville, IN

Month Towanda Zanesville
High Low Precip High Low Precip
January 33.4°F 15.6°F 2.43 in 32.6°F 18.4°F 2.54 in
February 38.2°F 18.9°F 1.99 in 36.5°F 21.0°F 2.06 in
March 49.8°F 27.8°F 2.61 in 47.8°F 29.4°F 2.81 in
April 62.8°F 37.9°F 3.72 in 60.9°F 39.4°F 3.74 in
May 74.0°F 49.8°F 4.81 in 72.2°F 50.4°F 4.58 in
June 83.3°F 59.9°F 4.08 in 81.0°F 60.3°F 4.48 in
July 86.0°F 63.0°F 4.12 in 84.1°F 63.5°F 4.05 in
August 84.4°F 60.8°F 3.83 in 82.0°F 61.2°F 3.80 in
September 78.8°F 53.0°F 3.22 in 76.1°F 53.4°F 3.04 in
October 65.6°F 41.8°F 3.48 in 63.7°F 42.8°F 2.95 in
November 50.2°F 30.7°F 2.80 in 49.4°F 32.8°F 2.96 in
December 38.3°F 21.4°F 2.30 in 37.5°F 24.2°F 2.47 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 →