Climate twins of Brockton, MA
These are the US cities whose 12-month climate pattern most closely matches Brockton'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: Brockton vs its climate twin
Top match: Shelton, CT
| Month | Brockton | Shelton | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 38.7°F | 20.6°F | 4.02 in | 36.0°F | 18.4°F | 3.95 in |
| February | 40.8°F | 22.0°F | 3.62 in | 38.1°F | 18.9°F | 3.62 in |
| March | 48.0°F | 28.7°F | 5.23 in | 46.8°F | 27.4°F | 4.72 in |
| April | 59.0°F | 38.0°F | 4.53 in | 58.2°F | 37.5°F | 4.72 in |
| May | 69.7°F | 47.4°F | 3.44 in | 69.0°F | 47.2°F | 4.04 in |
| June | 78.3°F | 57.1°F | 4.13 in | 77.3°F | 57.9°F | 3.93 in |
| July | 84.2°F | 63.4°F | 3.17 in | 82.0°F | 63.1°F | 4.30 in |
| August | 82.9°F | 62.0°F | 3.60 in | 82.0°F | 62.1°F | 4.56 in |
| September | 75.3°F | 54.2°F | 4.08 in | 75.0°F | 53.6°F | 4.38 in |
| October | 64.0°F | 43.0°F | 4.96 in | 63.3°F | 41.2°F | 5.00 in |
| November | 53.5°F | 34.2°F | 4.39 in | 51.6°F | 32.0°F | 4.24 in |
| December | 43.7°F | 26.4°F | 5.06 in | 41.2°F | 23.3°F | 4.57 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 →