Climate twins of Tucson, AZ

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

Top match: Presidio, TX

Month	Tucson			Presidio
	High	Low	Precip	High	Low	Precip
January	66.5°F	40.8°F	0.84 in	67.9°F	33.8°F	0.48 in
February	69.2°F	43.2°F	0.84 in	73.9°F	40.6°F	0.43 in
March	75.8°F	48.0°F	0.56 in	81.2°F	47.7°F	0.52 in
April	82.9°F	53.3°F	0.24 in	89.9°F	56.3°F	0.17 in
May	91.8°F	61.8°F	0.20 in	97.5°F	65.8°F	0.41 in
June	101.2°F	71.1°F	0.23 in	103.1°F	73.8°F	1.04 in
July	100.2°F	76.3°F	2.21 in	101.0°F	75.2°F	1.84 in
August	98.6°F	75.2°F	1.98 in	100.2°F	75.0°F	1.42 in
September	95.1°F	70.4°F	1.32 in	94.7°F	69.2°F	0.95 in
October	86.3°F	59.0°F	0.67 in	88.1°F	58.0°F	0.70 in
November	75.1°F	47.9°F	0.56 in	76.9°F	44.8°F	0.48 in
December	65.5°F	40.5°F	0.96 in	67.5°F	35.0°F	0.48 in

Cities that consider Tucson their climate twin

These US cities have Tucson in their top 3 most-similar list — meaning if you were to move from any of these places, Tucson would feel familiar.

Presidio, TX (ranks Tucson #1)

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 →