Climate twins of Hammonton, NJ
These are the US cities whose 12-month climate pattern most closely matches Hammonton'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: Hammonton vs its climate twin
Top match: La Plata, MD
| Month | Hammonton | La Plata | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 41.8°F | 23.9°F | 3.49 in | 44.2°F | 24.8°F | 3.29 in |
| February | 44.7°F | 25.0°F | 2.85 in | 47.6°F | 26.2°F | 2.97 in |
| March | 52.0°F | 31.1°F | 4.31 in | 55.9°F | 32.6°F | 4.24 in |
| April | 63.7°F | 41.0°F | 3.71 in | 67.3°F | 42.5°F | 3.31 in |
| May | 73.2°F | 51.0°F | 3.54 in | 73.7°F | 52.0°F | 4.32 in |
| June | 82.3°F | 61.0°F | 4.07 in | 81.5°F | 60.9°F | 4.19 in |
| July | 87.3°F | 66.5°F | 4.45 in | 85.3°F | 65.9°F | 4.57 in |
| August | 85.1°F | 64.4°F | 4.69 in | 83.3°F | 64.2°F | 4.84 in |
| September | 78.7°F | 57.2°F | 4.06 in | 76.7°F | 57.7°F | 4.87 in |
| October | 67.4°F | 45.3°F | 4.27 in | 66.1°F | 45.7°F | 4.18 in |
| November | 56.4°F | 35.3°F | 3.51 in | 57.3°F | 35.5°F | 3.34 in |
| December | 47.0°F | 28.5°F | 4.56 in | 48.1°F | 28.6°F | 3.99 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 →