Climate twins of Oak Island, NC
These are the US cities whose 12-month climate pattern most closely matches Oak Island'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: Oak Island vs its climate twin
Top match: Windsor, NC
| Month | Oak Island | Windsor | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 60.0°F | 35.5°F | 3.70 in | 51.8°F | 33.1°F | 3.69 in |
| February | 62.5°F | 37.6°F | 3.32 in | 54.9°F | 35.4°F | 3.22 in |
| March | 68.2°F | 42.7°F | 4.03 in | 62.0°F | 41.7°F | 4.13 in |
| April | 75.8°F | 50.9°F | 3.08 in | 71.4°F | 50.1°F | 3.72 in |
| May | 82.5°F | 60.0°F | 3.44 in | 78.2°F | 58.8°F | 3.69 in |
| June | 88.4°F | 69.0°F | 4.02 in | 85.3°F | 67.3°F | 5.13 in |
| July | 91.6°F | 72.8°F | 5.55 in | 88.5°F | 71.4°F | 5.75 in |
| August | 90.4°F | 71.2°F | 6.77 in | 86.9°F | 69.9°F | 5.70 in |
| September | 86.5°F | 66.0°F | 8.16 in | 81.8°F | 64.3°F | 6.92 in |
| October | 78.9°F | 54.4°F | 5.41 in | 73.0°F | 52.1°F | 4.29 in |
| November | 69.9°F | 44.3°F | 3.42 in | 63.1°F | 42.2°F | 3.39 in |
| December | 62.9°F | 38.0°F | 3.74 in | 55.3°F | 36.3°F | 3.57 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 →