Climate twins of Avalon, CA

These are the US cities whose 12-month climate pattern most closely matches Avalon'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
Mountain View, CA
similarity distance: 1.345 (lower = more similar)
Rank 2 closest
Los Altos, CA
similarity distance: 1.345 (lower = more similar)
Rank 3 closest
Cupertino, CA
similarity distance: 1.345 (lower = more similar)

Side-by-side: Avalon vs its climate twin

Top match: Mountain View, CA

Month Avalon Mountain View
High Low Precip High Low Precip
January 61.8°F 50.2°F 3.04 in 59.0°F 42.4°F 2.49 in
February 60.2°F 49.2°F 2.83 in 61.8°F 44.5°F 2.90 in
March 61.4°F 49.2°F 1.67 in 65.0°F 46.7°F 2.04 in
April 63.9°F 50.1°F 0.78 in 68.0°F 48.9°F 0.98 in
May 67.0°F 52.0°F 0.36 in 71.7°F 52.5°F 0.43 in
June 69.8°F 54.8°F 0.21 in 75.9°F 55.7°F 0.10 in
July 76.7°F 59.3°F 0.08 in 76.9°F 58.5°F 0.00 in
August 79.0°F 62.2°F 0.01 in 76.9°F 59.0°F 0.01 in
September 78.3°F 62.7°F 0.12 in 77.7°F 57.3°F 0.07 in
October 72.6°F 58.0°F 0.48 in 74.1°F 53.1°F 0.56 in
November 66.7°F 53.7°F 0.97 in 65.5°F 46.3°F 1.36 in
December 60.3°F 49.4°F 2.22 in 58.9°F 42.1°F 2.51 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 →