Climate twins of Granby, CO

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

Top match: Pinedale, WY

Month	Granby			Pinedale
	High	Low	Precip	High	Low	Precip
January	25.8°F	2.5°F	0.87 in	28.0°F	1.9°F	0.70 in
February	30.5°F	4.5°F	0.84 in	30.7°F	3.9°F	0.76 in
March	39.8°F	13.3°F	0.69 in	40.5°F	14.0°F	0.73 in
April	48.3°F	23.1°F	1.20 in	50.9°F	23.1°F	1.07 in
May	59.4°F	31.4°F	1.62 in	61.4°F	30.2°F	1.89 in
June	70.1°F	38.1°F	1.18 in	71.3°F	37.7°F	1.36 in
July	74.8°F	44.1°F	1.62 in	79.9°F	42.8°F	0.88 in
August	72.7°F	42.8°F	1.68 in	78.3°F	40.0°F	0.96 in
September	66.9°F	35.8°F	1.46 in	69.2°F	32.5°F	1.21 in
October	54.7°F	27.1°F	1.05 in	55.2°F	23.8°F	0.93 in
November	39.5°F	17.8°F	0.72 in	39.7°F	12.8°F	0.64 in
December	28.0°F	7.8°F	0.82 in	28.6°F	3.4°F	0.74 in

Cities that consider Granby their climate twin

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

Pinedale, WY (ranks Granby #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 →