Climate twins of Castleford, ID

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

Top match: Fairfield, UT

Month Castleford Fairfield
High Low Precip High Low Precip
January 36.1°F 20.3°F 1.22 in 39.3°F 13.3°F 1.27 in
February 42.1°F 23.1°F 1.05 in 44.5°F 17.6°F 1.33 in
March 52.9°F 28.3°F 0.96 in 56.0°F 24.8°F 1.17 in
April 60.1°F 32.9°F 1.21 in 63.0°F 29.6°F 1.18 in
May 69.5°F 40.6°F 1.43 in 72.1°F 36.8°F 1.37 in
June 78.4°F 47.1°F 0.75 in 82.5°F 43.9°F 0.78 in
July 87.9°F 53.8°F 0.24 in 90.2°F 51.0°F 0.67 in
August 85.9°F 51.9°F 0.34 in 88.6°F 49.4°F 0.66 in
September 76.3°F 44.2°F 0.50 in 80.0°F 40.3°F 0.82 in
October 62.0°F 34.8°F 0.78 in 66.6°F 28.5°F 1.15 in
November 46.5°F 25.6°F 0.94 in 51.8°F 19.8°F 0.79 in
December 35.3°F 19.2°F 1.30 in 40.2°F 13.2°F 1.32 in

Cities that consider Castleford their climate twin

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

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 →