Climate twins of Dunsmuir, CA

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

Top match: Grass Valley, CA

Month	Dunsmuir			Grass Valley
	High	Low	Precip	High	Low	Precip
January	48.6°F	29.9°F	11.08 in	53.6°F	33.1°F	9.30 in
February	52.4°F	30.8°F	10.46 in	54.9°F	34.2°F	8.98 in
March	57.2°F	33.4°F	9.20 in	57.9°F	37.0°F	8.16 in
April	63.3°F	37.1°F	4.90 in	62.7°F	40.0°F	4.43 in
May	72.8°F	44.1°F	2.83 in	70.8°F	46.8°F	2.48 in
June	81.2°F	50.2°F	1.33 in	80.2°F	52.6°F	0.74 in
July	89.9°F	54.0°F	0.15 in	88.0°F	58.2°F	0.00 in
August	89.1°F	51.5°F	0.20 in	87.4°F	56.8°F	0.11 in
September	83.5°F	46.2°F	0.68 in	82.3°F	52.1°F	0.44 in
October	70.9°F	39.3°F	3.04 in	72.1°F	44.2°F	2.56 in
November	56.3°F	33.6°F	6.89 in	59.8°F	37.1°F	5.52 in
December	47.7°F	30.1°F	12.57 in	52.6°F	32.6°F	10.48 in

Cities that consider Dunsmuir their climate twin

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

Grass Valley, CA (ranks Dunsmuir #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 →