Climate twins of Flora, IL

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

Top match: Elizabethtown, IN

Month Flora Elizabethtown
High Low Precip High Low Precip
January 38.8°F 21.2°F 2.95 in 38.6°F 21.5°F 3.42 in
February 44.2°F 24.7°F 2.54 in 42.9°F 23.7°F 2.91 in
March 54.5°F 33.0°F 3.83 in 53.5°F 31.9°F 3.78 in
April 67.1°F 43.5°F 5.31 in 65.6°F 42.2°F 5.00 in
May 76.8°F 54.1°F 5.09 in 74.9°F 53.0°F 4.99 in
June 86.0°F 63.3°F 5.86 in 83.1°F 62.2°F 5.31 in
July 89.0°F 65.8°F 4.19 in 86.1°F 65.4°F 4.54 in
August 87.8°F 63.4°F 3.73 in 85.4°F 63.3°F 3.48 in
September 81.6°F 55.4°F 3.34 in 79.7°F 55.4°F 3.21 in
October 69.0°F 44.3°F 3.67 in 68.0°F 43.6°F 3.39 in
November 54.8°F 33.6°F 4.23 in 54.4°F 33.8°F 3.60 in
December 43.2°F 25.9°F 3.26 in 42.9°F 26.2°F 3.71 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 →