Climate twins of Swansea, SC
These are the US cities whose 12-month climate pattern most closely matches Swansea'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: Swansea vs its climate twin
Top match: Conway, SC
| Month | Swansea | Conway | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 57.9°F | 33.8°F | 4.31 in | 58.1°F | 35.2°F | 4.28 in |
| February | 61.2°F | 36.4°F | 3.96 in | 60.6°F | 38.1°F | 3.57 in |
| March | 68.2°F | 41.8°F | 4.21 in | 68.0°F | 43.6°F | 3.76 in |
| April | 76.5°F | 49.9°F | 3.34 in | 75.8°F | 51.9°F | 3.16 in |
| May | 83.9°F | 59.2°F | 3.57 in | 82.6°F | 60.6°F | 3.33 in |
| June | 90.2°F | 68.9°F | 5.17 in | 87.7°F | 68.7°F | 5.34 in |
| July | 92.9°F | 72.2°F | 7.69 in | 90.8°F | 72.4°F | 6.89 in |
| August | 90.9°F | 70.9°F | 6.39 in | 89.1°F | 71.2°F | 7.81 in |
| September | 85.5°F | 64.6°F | 4.41 in | 84.8°F | 66.0°F | 6.00 in |
| October | 76.2°F | 52.1°F | 3.52 in | 76.9°F | 54.8°F | 3.83 in |
| November | 66.0°F | 40.4°F | 3.57 in | 68.2°F | 44.1°F | 3.21 in |
| December | 60.1°F | 36.4°F | 4.40 in | 60.6°F | 38.6°F | 4.03 in |
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 →