Climate twins of Williamstown, KY
These are the US cities whose 12-month climate pattern most closely matches Williamstown'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: Williamstown vs its climate twin
Top match: Herculaneum, MO
| Month | Williamstown | Herculaneum | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 41.9°F | 25.0°F | 3.12 in | 41.0°F | 22.3°F | 2.68 in |
| February | 47.0°F | 27.9°F | 3.26 in | 46.3°F | 25.3°F | 2.51 in |
| March | 55.9°F | 35.3°F | 4.34 in | 56.3°F | 33.6°F | 4.00 in |
| April | 68.1°F | 45.2°F | 4.14 in | 67.8°F | 43.8°F | 4.91 in |
| May | 76.5°F | 54.9°F | 4.87 in | 76.2°F | 53.8°F | 4.76 in |
| June | 83.4°F | 62.6°F | 4.99 in | 84.6°F | 62.6°F | 4.74 in |
| July | 87.1°F | 66.3°F | 3.82 in | 88.4°F | 67.2°F | 3.83 in |
| August | 86.0°F | 65.0°F | 3.80 in | 87.2°F | 65.4°F | 3.59 in |
| September | 81.1°F | 58.4°F | 3.46 in | 80.6°F | 57.1°F | 3.38 in |
| October | 69.8°F | 47.2°F | 3.00 in | 69.6°F | 45.5°F | 2.83 in |
| November | 56.2°F | 37.2°F | 3.55 in | 56.0°F | 35.1°F | 3.54 in |
| December | 45.5°F | 29.2°F | 3.51 in | 45.1°F | 26.5°F | 2.80 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 →