Climate twins of Lowell, MA

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

Top match: Haverstraw, NY

Month Lowell Haverstraw
High Low Precip High Low Precip
January 34.0°F 15.8°F 3.61 in 35.5°F 16.7°F 3.72 in
February 37.3°F 16.9°F 3.20 in 38.6°F 17.9°F 3.06 in
March 45.4°F 24.4°F 4.32 in 46.8°F 25.4°F 4.10 in
April 59.0°F 34.6°F 4.06 in 59.7°F 35.9°F 3.89 in
May 70.0°F 45.0°F 3.81 in 69.6°F 45.9°F 3.91 in
June 79.0°F 55.0°F 4.37 in 78.0°F 55.2°F 5.00 in
July 84.7°F 60.9°F 3.86 in 83.0°F 60.8°F 4.32 in
August 83.0°F 59.3°F 4.00 in 81.1°F 59.3°F 4.28 in
September 75.5°F 51.5°F 3.89 in 74.4°F 51.9°F 4.80 in
October 62.4°F 39.5°F 5.00 in 62.5°F 40.9°F 4.61 in
November 50.5°F 30.3°F 3.85 in 51.4°F 31.5°F 4.24 in
December 39.8°F 22.1°F 4.54 in 40.8°F 23.3°F 4.37 in

Cities that consider Lowell their climate twin

These US cities have Lowell in their top 3 most-similar list — meaning if you were to move from any of these places, Lowell 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 →