Climate twins of Idaho City, ID

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

Top match: Deer Park, WA

Month Idaho City Deer Park
High Low Precip High Low Precip
January 35.3°F 13.5°F 3.16 in 33.9°F 21.1°F 2.89 in
February 40.5°F 15.9°F 1.94 in 38.8°F 21.6°F 1.63 in
March 47.8°F 22.0°F 2.26 in 48.5°F 26.6°F 2.27 in
April 56.0°F 27.5°F 1.59 in 57.5°F 31.9°F 1.91 in
May 66.4°F 34.5°F 2.11 in 67.4°F 39.2°F 1.92 in
June 75.3°F 40.3°F 1.09 in 73.1°F 44.0°F 1.91 in
July 87.1°F 45.6°F 0.32 in 84.2°F 48.4°F 0.61 in
August 86.3°F 43.6°F 0.44 in 84.2°F 46.8°F 0.73 in
September 76.5°F 35.6°F 0.77 in 74.0°F 39.9°F 0.82 in
October 61.5°F 27.5°F 1.50 in 57.5°F 31.7°F 2.00 in
November 44.2°F 20.7°F 2.41 in 41.9°F 26.4°F 2.77 in
December 34.6°F 13.9°F 3.53 in 33.1°F 21.3°F 3.06 in

Cities that consider Idaho City their climate twin

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