Climate twins of Surprise, AZ

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

Top match: Twentynine Palms, CA

Month	Surprise			Twentynine Palms
	High	Low	Precip	High	Low	Precip
January	65.2°F	39.2°F	1.38 in	63.3°F	41.8°F	0.50 in
February	68.2°F	41.4°F	1.45 in	67.2°F	44.1°F	0.56 in
March	74.9°F	45.6°F	1.00 in	74.1°F	49.3°F	0.35 in
April	82.1°F	50.6°F	0.25 in	81.1°F	54.5°F	0.12 in
May	91.8°F	59.9°F	0.09 in	89.9°F	62.9°F	0.05 in
June	101.8°F	69.1°F	0.07 in	99.4°F	70.7°F	0.00 in
July	104.6°F	76.8°F	0.89 in	104.0°F	77.4°F	0.40 in
August	103.3°F	76.9°F	1.13 in	102.7°F	76.4°F	0.65 in
September	97.6°F	69.8°F	1.06 in	96.5°F	69.3°F	0.34 in
October	86.5°F	57.1°F	0.66 in	84.7°F	57.8°F	0.15 in
November	74.1°F	45.8°F	0.67 in	71.6°F	47.0°F	0.19 in
December	64.1°F	39.0°F	0.95 in	62.0°F	39.9°F	0.56 in

Cities that consider Surprise their climate twin

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

Las Vegas, NV (ranks Surprise #2)

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 →