Climate twins of Chino Hills, CA

These are the US cities whose 12-month climate pattern most closely matches Chino Hills'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
Newman, CA
similarity distance: 1.382 (lower = more similar)
Rank 2 closest
Gustine, CA
similarity distance: 1.382 (lower = more similar)
Rank 3 closest
Livingston, CA
similarity distance: 1.428 (lower = more similar)

Side-by-side: Chino Hills vs its climate twin

Top match: Newman, CA

Month Chino Hills Newman
High Low Precip High Low Precip
January 69.5°F 41.7°F 2.17 in 60.1°F 38.2°F 2.66 in
February 69.8°F 42.9°F 2.68 in 66.6°F 40.8°F 2.23 in
March 72.5°F 45.8°F 1.43 in 73.0°F 43.6°F 1.76 in
April 77.0°F 48.7°F 0.55 in 79.7°F 46.3°F 0.71 in
May 81.1°F 54.3°F 0.17 in 88.0°F 52.1°F 0.45 in
June 87.6°F 58.5°F 0.02 in 95.7°F 57.5°F 0.07 in
July 93.7°F 62.9°F 0.08 in 100.0°F 61.6°F 0.00 in
August 96.3°F 63.2°F 0.01 in 98.2°F 60.4°F 0.00 in
September 92.7°F 60.4°F 0.06 in 94.9°F 57.3°F 0.04 in
October 84.5°F 53.3°F 0.53 in 85.1°F 50.0°F 0.59 in
November 76.3°F 45.1°F 0.59 in 70.7°F 42.4°F 1.06 in
December 68.7°F 40.4°F 1.69 in 60.4°F 37.8°F 2.14 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 →