Climate twins of Charleston, WV
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: Johnson City, TN
| Month | Charleston | Johnson City | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 43.9°F | 26.1°F | 3.27 in | 46.2°F | 25.5°F | 3.78 in |
| February | 47.8°F | 28.6°F | 3.36 in | 50.4°F | 28.1°F | 3.76 in |
| March | 56.8°F | 35.1°F | 4.14 in | 58.9°F | 34.2°F | 3.97 in |
| April | 69.4°F | 44.5°F | 3.56 in | 69.0°F | 41.9°F | 3.81 in |
| May | 76.2°F | 53.2°F | 4.93 in | 76.6°F | 51.8°F | 4.43 in |
| June | 83.1°F | 61.5°F | 4.72 in | 82.9°F | 59.6°F | 5.16 in |
| July | 86.0°F | 65.5°F | 5.38 in | 85.5°F | 63.5°F | 5.86 in |
| August | 85.2°F | 64.1°F | 3.75 in | 85.0°F | 62.3°F | 4.20 in |
| September | 79.5°F | 57.1°F | 3.46 in | 80.1°F | 55.6°F | 3.00 in |
| October | 68.7°F | 45.3°F | 2.91 in | 70.0°F | 44.0°F | 2.80 in |
| November | 57.3°F | 35.6°F | 3.20 in | 58.5°F | 33.3°F | 3.36 in |
| December | 47.5°F | 29.9°F | 3.56 in | 49.5°F | 28.8°F | 3.90 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.
- Elizabethton, TN (ranks Charleston #1)
- Johnson City, TN (ranks Charleston #1)
- Jonesborough, TN (ranks Charleston #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 →