Climate twins of Randolph Town, MA

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

Top match: Shelton, CT

Month Randolph Town Shelton
High Low Precip High Low Precip
January 34.7°F 18.3°F 4.50 in 36.0°F 18.4°F 3.95 in
February 37.0°F 19.5°F 4.00 in 38.1°F 18.9°F 3.62 in
March 44.1°F 26.9°F 5.52 in 46.8°F 27.4°F 4.72 in
April 56.3°F 37.9°F 4.76 in 58.2°F 37.5°F 4.72 in
May 66.8°F 48.2°F 3.82 in 69.0°F 47.2°F 4.04 in
June 75.4°F 57.6°F 4.63 in 77.3°F 57.9°F 3.93 in
July 81.7°F 63.8°F 3.47 in 82.0°F 63.1°F 4.30 in
August 80.2°F 62.6°F 3.91 in 82.0°F 62.1°F 4.56 in
September 72.7°F 55.6°F 4.06 in 75.0°F 53.6°F 4.38 in
October 61.0°F 44.0°F 5.49 in 63.3°F 41.2°F 5.00 in
November 50.1°F 33.8°F 4.31 in 51.6°F 32.0°F 4.24 in
December 40.2°F 24.9°F 5.39 in 41.2°F 23.3°F 4.57 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 →