Climate twins of Woodridge, IL

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

Top match: Hillsdale, IL

Month Woodridge Hillsdale
High Low Precip High Low Precip
January 32.8°F 16.8°F 2.12 in 30.8°F 14.6°F 1.64 in
February 37.5°F 19.8°F 1.96 in 35.7°F 18.6°F 1.81 in
March 49.5°F 28.5°F 2.46 in 48.9°F 29.3°F 2.70 in
April 62.5°F 38.3°F 4.10 in 62.2°F 39.9°F 3.96 in
May 73.6°F 48.7°F 4.46 in 73.7°F 51.6°F 4.87 in
June 82.9°F 58.5°F 4.65 in 82.8°F 61.5°F 4.42 in
July 85.5°F 63.1°F 3.86 in 85.7°F 65.1°F 4.13 in
August 83.7°F 62.1°F 4.40 in 83.4°F 62.9°F 4.10 in
September 78.0°F 53.8°F 3.30 in 77.1°F 54.5°F 3.57 in
October 65.2°F 42.9°F 3.56 in 64.0°F 42.9°F 3.21 in
November 50.1°F 31.8°F 2.81 in 48.8°F 30.7°F 2.56 in
December 37.7°F 22.6°F 2.22 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 →