Climate twins of Charleston, UT
These are the US cities whose 12-month climate pattern most closely matches Charleston'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: Charleston vs its climate twin
Top match: McCammon, ID
| Month | Charleston | McCammon | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 36.5°F | 12.5°F | 1.86 in | 32.2°F | 14.6°F | 1.80 in |
| February | 41.3°F | 15.8°F | 1.72 in | 37.1°F | 18.3°F | 1.32 in |
| March | 52.7°F | 23.8°F | 1.17 in | 48.8°F | 26.1°F | 1.24 in |
| April | 61.4°F | 29.9°F | 1.39 in | 58.3°F | 32.3°F | 1.19 in |
| May | 71.2°F | 36.2°F | 1.40 in | 68.0°F | 39.4°F | 2.01 in |
| June | 81.6°F | 42.1°F | 0.87 in | 77.0°F | 46.0°F | 1.17 in |
| July | 89.5°F | 49.6°F | 0.53 in | 87.3°F | 52.0°F | 0.60 in |
| August | 87.5°F | 48.5°F | 0.84 in | 85.6°F | 50.7°F | 1.04 in |
| September | 78.6°F | 40.1°F | 1.24 in | 75.9°F | 42.2°F | 1.24 in |
| October | 65.5°F | 30.7°F | 1.30 in | 61.4°F | 32.3°F | 1.15 in |
| November | 49.6°F | 21.8°F | 1.13 in | 45.6°F | 24.0°F | 0.97 in |
| December | 37.0°F | 14.1°F | 1.62 in | 33.5°F | 17.1°F | 1.73 in |
Cities that consider Charleston their climate twin
These US cities have Charleston in their top 3 most-similar list — meaning if you were to move from any of these places, Charleston would feel familiar.
- Arimo, ID (ranks Charleston #3)
- McCammon, ID (ranks Charleston #3)
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 →