Climate twins of Port Jefferson, OH

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

Top match: Newcomerstown, OH

Month Port Jefferson Newcomerstown
High Low Precip High Low Precip
January 34.4°F 17.9°F 2.89 in 35.5°F 19.9°F 2.63 in
February 38.5°F 20.1°F 2.31 in 38.3°F 21.8°F 2.04 in
March 48.9°F 28.0°F 3.17 in 48.1°F 29.8°F 3.19 in
April 62.3°F 37.8°F 4.08 in 61.2°F 41.4°F 3.76 in
May 72.8°F 49.1°F 4.08 in 70.9°F 51.8°F 3.75 in
June 81.2°F 58.9°F 4.70 in 79.4°F 60.3°F 4.57 in
July 84.3°F 62.1°F 4.57 in 82.9°F 63.7°F 4.29 in
August 83.0°F 59.8°F 3.76 in 81.8°F 62.5°F 3.92 in
September 77.9°F 52.5°F 3.11 in 75.6°F 55.9°F 2.98 in
October 65.2°F 41.5°F 2.89 in 63.5°F 44.3°F 2.84 in
November 51.1°F 31.5°F 3.17 in 50.6°F 34.3°F 2.72 in
December 39.6°F 23.9°F 2.92 in 39.8°F 25.8°F 2.95 in

Cities that consider Port Jefferson their climate twin

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