Climate twins of Irrigon, OR

These are the US cities whose 12-month climate pattern most closely matches Irrigon'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.

Rank 1 closest
Marsing, ID
similarity distance: 0.757 (lower = more similar)
Rank 2 closest
Gooding, ID
similarity distance: 0.788 (lower = more similar)
Rank 3 closest
Bliss, ID
similarity distance: 0.788 (lower = more similar)

Side-by-side: Irrigon vs its climate twin

Top match: Marsing, ID

Month Irrigon Marsing
High Low Precip High Low Precip
January 41.7°F 26.0°F 1.28 in 39.8°F 24.5°F 1.22 in
February 47.9°F 26.3°F 0.84 in 47.4°F 27.3°F 0.99 in
March 57.9°F 31.3°F 0.80 in 58.4°F 33.8°F 1.10 in
April 65.6°F 37.2°F 0.78 in 64.5°F 38.4°F 1.06 in
May 74.2°F 44.9°F 0.87 in 73.1°F 46.0°F 1.15 in
June 80.6°F 51.4°F 0.65 in 80.9°F 52.1°F 0.70 in
July 89.4°F 56.1°F 0.24 in 89.9°F 59.2°F 0.29 in
August 88.7°F 53.8°F 0.17 in 89.1°F 57.0°F 0.19 in
September 79.8°F 45.6°F 0.26 in 80.0°F 49.0°F 0.37 in
October 65.6°F 36.2°F 0.84 in 66.4°F 39.2°F 0.75 in
November 50.5°F 29.1°F 1.05 in 50.3°F 30.5°F 1.07 in
December 41.5°F 25.7°F 1.04 in 40.1°F 24.0°F 1.11 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 →