Climate twins of Amsterdam, NY
These are the US cities whose 12-month climate pattern most closely matches Amsterdam'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: Amsterdam vs its climate twin
Top match: Portville, NY
| Month | Amsterdam | Portville | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 31.1°F | 12.2°F | 2.62 in | 31.7°F | 13.1°F | 2.73 in |
| February | 33.8°F | 12.9°F | 2.35 in | 34.4°F | 14.8°F | 1.97 in |
| March | 42.0°F | 20.4°F | 3.26 in | 43.1°F | 21.1°F | 2.63 in |
| April | 56.8°F | 33.2°F | 3.44 in | 56.5°F | 32.4°F | 3.35 in |
| May | 69.9°F | 44.1°F | 3.52 in | 68.3°F | 43.7°F | 3.66 in |
| June | 76.9°F | 53.5°F | 4.96 in | 76.0°F | 52.5°F | 4.48 in |
| July | 81.5°F | 58.6°F | 4.48 in | 80.3°F | 57.0°F | 4.28 in |
| August | 79.7°F | 55.7°F | 4.14 in | 78.7°F | 55.3°F | 4.03 in |
| September | 73.7°F | 48.5°F | 3.58 in | 72.6°F | 49.0°F | 3.85 in |
| October | 58.7°F | 37.7°F | 4.46 in | 59.8°F | 38.4°F | 3.60 in |
| November | 47.8°F | 28.1°F | 2.77 in | 47.3°F | 28.5°F | 2.87 in |
| December | 35.9°F | 19.0°F | 3.04 in | 37.1°F | 20.7°F | 3.22 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 →