Climate twins of Haverhill, IA

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

Top match: Woodman, WI

Month Haverhill Woodman
High Low Precip High Low Precip
January 27.5°F 9.0°F 0.97 in 27.4°F 7.7°F 1.24 in
February 32.3°F 13.0°F 1.16 in 31.6°F 12.3°F 1.22 in
March 45.4°F 24.9°F 2.10 in 44.3°F 23.9°F 2.10 in
April 59.5°F 35.9°F 3.82 in 58.0°F 36.2°F 4.05 in
May 70.7°F 48.5°F 4.94 in 69.4°F 47.7°F 4.59 in
June 80.4°F 59.2°F 5.93 in 78.0°F 58.3°F 5.50 in
July 83.5°F 62.7°F 4.58 in 81.7°F 62.2°F 4.35 in
August 81.5°F 59.7°F 4.37 in 80.0°F 60.7°F 4.17 in
September 75.4°F 50.6°F 3.85 in 73.3°F 51.5°F 3.68 in
October 62.2°F 38.6°F 2.66 in 60.6°F 40.1°F 2.76 in
November 46.5°F 26.3°F 2.10 in 45.4°F 27.0°F 2.20 in
December 33.5°F 15.6°F 1.39 in 33.1°F 15.7°F 1.55 in

Cities that consider Haverhill their climate twin

These US cities have Haverhill in their top 3 most-similar list — meaning if you were to move from any of these places, Haverhill would feel familiar.

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 →