Climate twins of Lynn, MA
These are the US cities whose 12-month climate pattern most closely matches Lynn'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: Lynn vs its climate twin
Top match: Fulton, NY
| Month | Lynn | Fulton | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 36.1°F | 17.9°F | 3.75 in | 31.1°F | 14.1°F | 3.78 in |
| February | 37.9°F | 19.6°F | 3.50 in | 33.0°F | 16.1°F | 3.65 in |
| March | 44.3°F | 26.3°F | 4.71 in | 41.3°F | 23.5°F | 3.46 in |
| April | 55.1°F | 35.6°F | 4.30 in | 55.3°F | 34.8°F | 3.91 in |
| May | 65.2°F | 45.0°F | 3.48 in | 68.7°F | 46.3°F | 3.80 in |
| June | 74.2°F | 54.4°F | 4.14 in | 77.2°F | 55.3°F | 3.60 in |
| July | 80.3°F | 60.7°F | 3.48 in | 81.4°F | 59.5°F | 3.93 in |
| August | 79.0°F | 59.6°F | 3.25 in | 79.9°F | 59.9°F | 4.02 in |
| September | 72.3°F | 53.0°F | 3.56 in | 72.0°F | 51.3°F | 3.49 in |
| October | 61.2°F | 42.3°F | 5.00 in | 59.0°F | 41.3°F | 4.66 in |
| November | 50.7°F | 32.9°F | 4.15 in | 48.0°F | 32.0°F | 3.96 in |
| December | 41.6°F | 24.3°F | 4.70 in | 36.6°F | 23.5°F | 4.43 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 →