Climate twins of Milwaukie, OR

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

Top match: Tukwila, WA

Month Milwaukie Tukwila
High Low Precip High Low Precip
January 46.9°F 37.3°F 6.36 in 48.0°F 37.7°F 5.78 in
February 50.5°F 38.8°F 4.74 in 50.3°F 37.7°F 3.76 in
March 55.8°F 40.9°F 4.83 in 54.2°F 39.9°F 4.17 in
April 60.7°F 44.2°F 3.63 in 59.3°F 43.3°F 3.18 in
May 68.0°F 49.4°F 2.58 in 66.3°F 48.7°F 1.88 in
June 72.9°F 53.3°F 1.49 in 71.1°F 53.0°F 1.45 in
July 80.3°F 57.9°F 0.43 in 77.4°F 56.8°F 0.60 in
August 80.6°F 58.6°F 0.54 in 77.6°F 57.2°F 0.97 in
September 74.9°F 55.1°F 1.58 in 71.6°F 53.6°F 1.61 in
October 62.9°F 47.9°F 3.96 in 60.5°F 47.0°F 3.91 in
November 52.3°F 41.6°F 6.58 in 52.1°F 40.9°F 6.31 in
December 45.9°F 37.3°F 7.35 in 47.0°F 37.1°F 5.72 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 →