Climate twins of Wood Dale, IL

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

Top match: Hillsdale, IL

Month Wood Dale Hillsdale
High Low Precip High Low Precip
January 31.6°F 18.8°F 1.99 in 30.8°F 14.6°F 1.64 in
February 35.7°F 21.8°F 1.97 in 35.7°F 18.6°F 1.81 in
March 47.0°F 31.0°F 2.45 in 48.9°F 29.3°F 2.70 in
April 59.0°F 40.3°F 3.75 in 62.2°F 39.9°F 3.96 in
May 70.5°F 50.6°F 4.49 in 73.7°F 51.6°F 4.87 in
June 80.4°F 60.8°F 4.10 in 82.8°F 61.5°F 4.42 in
July 84.5°F 66.4°F 3.71 in 85.7°F 65.1°F 4.13 in
August 82.5°F 65.1°F 4.25 in 83.4°F 62.9°F 4.10 in
September 75.5°F 57.1°F 3.19 in 77.1°F 54.5°F 3.57 in
October 62.7°F 45.4°F 3.43 in 64.0°F 42.9°F 3.21 in
November 48.4°F 34.1°F 2.42 in 48.8°F 30.7°F 2.56 in
December 36.6°F 24.4°F 2.11 in 35.9°F 20.5°F 2.12 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 →