Climate twins of Southport, IN
These are the US cities whose 12-month climate pattern most closely matches Southport'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: Southport vs its climate twin
Top match: Sabina, OH
| Month | Southport | Sabina | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 34.2°F | 18.9°F | 3.08 in | 36.5°F | 20.1°F | 3.13 in |
| February | 39.1°F | 21.7°F | 2.34 in | 39.9°F | 22.0°F | 2.60 in |
| March | 49.7°F | 30.5°F | 3.71 in | 50.0°F | 29.9°F | 3.92 in |
| April | 61.9°F | 41.3°F | 4.46 in | 63.0°F | 39.8°F | 4.38 in |
| May | 72.3°F | 52.4°F | 4.99 in | 72.8°F | 51.3°F | 4.70 in |
| June | 80.9°F | 61.6°F | 5.42 in | 81.1°F | 60.3°F | 4.70 in |
| July | 83.7°F | 64.4°F | 3.87 in | 83.9°F | 62.5°F | 4.30 in |
| August | 82.6°F | 62.6°F | 3.56 in | 83.1°F | 59.9°F | 3.17 in |
| September | 76.8°F | 55.1°F | 3.21 in | 77.8°F | 52.7°F | 2.95 in |
| October | 64.6°F | 43.5°F | 3.23 in | 65.8°F | 42.3°F | 3.13 in |
| November | 50.6°F | 32.7°F | 3.44 in | 52.2°F | 32.4°F | 2.98 in |
| December | 39.2°F | 24.2°F | 3.27 in | 41.1°F | 25.8°F | 3.27 in |
Cities that consider Southport their climate twin
These US cities have Southport in their top 3 most-similar list — meaning if you were to move from any of these places, Southport would feel familiar.
- Harveysburg, OH (ranks Southport #1)
- Spring Valley, OH (ranks Southport #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 →