Climate twins of Providence, RI
These are the US cities whose 12-month climate pattern most closely matches Providence'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: Providence vs its climate twin
Top match: Lloyd Harbor, NY
| Month | Providence | Lloyd Harbor | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 38.3°F | 22.1°F | 3.96 in | 37.9°F | 24.5°F | 3.72 in |
| February | 40.5°F | 23.5°F | 3.44 in | 40.0°F | 25.4°F | 3.09 in |
| March | 47.7°F | 30.2°F | 4.90 in | 47.3°F | 31.3°F | 4.24 in |
| April | 58.9°F | 39.6°F | 4.29 in | 59.8°F | 40.9°F | 4.09 in |
| May | 68.9°F | 49.2°F | 3.37 in | 69.6°F | 50.5°F | 3.88 in |
| June | 77.7°F | 58.8°F | 3.81 in | 78.4°F | 60.2°F | 4.29 in |
| July | 83.6°F | 65.2°F | 2.91 in | 83.2°F | 65.8°F | 3.83 in |
| August | 82.2°F | 63.9°F | 3.59 in | 81.4°F | 65.0°F | 4.32 in |
| September | 74.8°F | 56.5°F | 4.17 in | 74.3°F | 59.0°F | 4.67 in |
| October | 63.8°F | 45.1°F | 4.18 in | 62.6°F | 48.8°F | 4.26 in |
| November | 53.2°F | 35.8°F | 4.27 in | 52.2°F | 38.7°F | 3.48 in |
| December | 43.4°F | 27.6°F | 4.65 in | 43.1°F | 30.5°F | 4.64 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 →