Climate twins of Charlestown, IN
These are the US cities whose 12-month climate pattern most closely matches Charlestown'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: Charlestown vs its climate twin
Top match: Paducah, KY
| Month | Charlestown | Paducah | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 43.3°F | 25.9°F | 3.48 in | 43.0°F | 25.1°F | 3.72 in |
| February | 47.6°F | 29.2°F | 3.49 in | 47.6°F | 27.9°F | 3.79 in |
| March | 56.6°F | 36.6°F | 4.54 in | 57.6°F | 36.2°F | 4.63 in |
| April | 68.9°F | 47.2°F | 4.79 in | 69.0°F | 46.2°F | 5.10 in |
| May | 76.9°F | 58.4°F | 4.81 in | 77.4°F | 56.0°F | 4.83 in |
| June | 85.4°F | 65.8°F | 4.43 in | 85.4°F | 64.5°F | 4.67 in |
| July | 88.9°F | 69.7°F | 3.53 in | 88.6°F | 68.2°F | 3.85 in |
| August | 88.0°F | 68.8°F | 3.27 in | 88.0°F | 66.4°F | 2.93 in |
| September | 81.8°F | 61.5°F | 3.93 in | 82.0°F | 58.6°F | 3.49 in |
| October | 70.3°F | 49.7°F | 3.49 in | 70.9°F | 46.8°F | 4.08 in |
| November | 56.8°F | 38.0°F | 3.75 in | 57.2°F | 36.0°F | 3.97 in |
| December | 47.1°F | 30.8°F | 4.48 in | 46.7°F | 29.0°F | 4.05 in |
Cities that consider Charlestown their climate twin
These US cities have Charlestown in their top 3 most-similar list — meaning if you were to move from any of these places, Charlestown would feel familiar.
- Brookport, IL (ranks Charlestown #3)
- Hendersonville, TN (ranks Charlestown #3)
- Goodlettsville, TN (ranks Charlestown #2)
- Morganfield, KY (ranks Charlestown #3)
- New Haven, IL (ranks Charlestown #3)
- Uniontown, KY (ranks Charlestown #3)
- Calvert City, KY (ranks Charlestown #3)
- Smithland, KY (ranks Charlestown #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 →