Climate twins of Rome, NY
These are the US cities whose 12-month climate pattern most closely matches Rome'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: Rome vs its climate twin
Top match: Essex Junction, VT
| Month | Rome | Essex Junction | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 30.1°F | 12.9°F | 2.50 in | 28.4°F | 9.9°F | 2.49 in |
| February | 31.8°F | 13.2°F | 2.37 in | 31.4°F | 11.4°F | 2.11 in |
| March | 41.0°F | 22.5°F | 3.43 in | 40.3°F | 21.4°F | 2.70 in |
| April | 54.9°F | 34.1°F | 3.72 in | 54.4°F | 34.7°F | 3.49 in |
| May | 68.9°F | 44.7°F | 4.46 in | 68.2°F | 46.7°F | 3.96 in |
| June | 76.2°F | 54.5°F | 4.20 in | 76.9°F | 56.1°F | 4.64 in |
| July | 80.9°F | 59.5°F | 4.25 in | 81.3°F | 60.8°F | 4.51 in |
| August | 79.3°F | 58.1°F | 3.60 in | 79.9°F | 59.2°F | 4.00 in |
| September | 72.0°F | 50.9°F | 3.95 in | 72.1°F | 51.8°F | 3.98 in |
| October | 58.9°F | 40.5°F | 4.67 in | 58.2°F | 40.2°F | 4.44 in |
| November | 46.8°F | 31.2°F | 3.72 in | 46.1°F | 30.6°F | 3.02 in |
| December | 35.7°F | 20.9°F | 2.95 in | 34.6°F | 19.1°F | 2.97 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 →