Climate twins of Fort Lupton, CO

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

Top match: Fort Laramie, WY

Month Fort Lupton Fort Laramie
High Low Precip High Low Precip
January 44.4°F 16.1°F 0.42 in 43.0°F 15.3°F 0.24 in
February 45.9°F 18.5°F 0.43 in 45.0°F 17.1°F 0.53 in
March 55.9°F 26.7°F 0.98 in 54.8°F 23.5°F 0.80 in
April 62.9°F 33.9°F 1.77 in 61.9°F 30.1°F 1.71 in
May 71.9°F 43.2°F 2.35 in 71.0°F 40.6°F 2.93 in
June 84.1°F 52.4°F 1.41 in 82.8°F 50.0°F 2.19 in
July 90.0°F 58.2°F 1.72 in 91.0°F 56.5°F 1.78 in
August 87.6°F 56.4°F 1.77 in 89.2°F 54.1°F 1.36 in
September 79.8°F 47.4°F 1.18 in 79.8°F 43.8°F 1.39 in
October 65.9°F 35.0°F 1.02 in 65.2°F 31.1°F 1.13 in
November 53.3°F 25.0°F 0.69 in 52.0°F 22.1°F 0.46 in
December 44.0°F 16.3°F 0.37 in 42.6°F 15.4°F 0.42 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 →