Climate twins of Zillah, WA

These are the US cities whose 12-month climate pattern most closely matches Zillah'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
Grand View, ID
similarity distance: 0.574 (lower = more similar)
Rank 2 closest
Lovelock, NV
similarity distance: 0.684 (lower = more similar)
Rank 3 closest
Greenleaf, ID
similarity distance: 0.713 (lower = more similar)

Side-by-side: Zillah vs its climate twin

Top match: Grand View, ID

Month Zillah Grand View
High Low Precip High Low Precip
January 39.3°F 24.4°F 1.10 in 41.4°F 23.3°F 0.75 in
February 47.5°F 26.3°F 0.61 in 49.0°F 26.8°F 0.49 in
March 56.9°F 32.6°F 0.56 in 59.5°F 32.1°F 0.69 in
April 65.2°F 38.7°F 0.56 in 66.6°F 37.6°F 0.65 in
May 74.5°F 46.6°F 0.83 in 76.0°F 46.0°F 0.90 in
June 81.2°F 53.3°F 0.54 in 84.4°F 52.7°F 0.57 in
July 90.2°F 59.2°F 0.24 in 93.3°F 58.2°F 0.26 in
August 88.8°F 57.7°F 0.23 in 92.2°F 55.3°F 0.20 in
September 80.3°F 48.8°F 0.23 in 82.5°F 47.0°F 0.24 in
October 65.9°F 37.3°F 0.64 in 67.8°F 36.9°F 0.44 in
November 49.5°F 28.7°F 0.92 in 51.2°F 28.1°F 0.61 in
December 38.5°F 23.3°F 1.36 in 39.9°F 23.2°F 0.88 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 →