Climate twins of Rock Hill, SC
These are the US cities whose 12-month climate pattern most closely matches Rock Hill'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: Rock Hill vs its climate twin
Top match: Union Point, GA
| Month | Rock Hill | Union Point | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 53.5°F | 32.6°F | 3.58 in | 55.0°F | 32.0°F | 4.01 in |
| February | 57.8°F | 35.0°F | 3.12 in | 58.8°F | 34.6°F | 4.45 in |
| March | 65.5°F | 41.6°F | 3.90 in | 66.1°F | 40.8°F | 4.84 in |
| April | 74.8°F | 49.9°F | 3.73 in | 74.3°F | 48.1°F | 3.34 in |
| May | 81.2°F | 58.6°F | 3.53 in | 81.5°F | 56.6°F | 2.96 in |
| June | 87.6°F | 66.5°F | 4.11 in | 88.4°F | 65.0°F | 4.22 in |
| July | 90.7°F | 69.7°F | 3.57 in | 91.2°F | 68.5°F | 3.72 in |
| August | 89.0°F | 68.9°F | 3.72 in | 89.6°F | 67.6°F | 4.11 in |
| September | 83.5°F | 63.0°F | 3.56 in | 84.0°F | 61.7°F | 3.72 in |
| October | 74.0°F | 51.2°F | 2.94 in | 75.3°F | 50.3°F | 2.73 in |
| November | 63.8°F | 40.9°F | 3.28 in | 65.0°F | 39.9°F | 3.54 in |
| December | 55.6°F | 35.2°F | 3.58 in | 56.9°F | 34.7°F | 4.46 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 →