Climate twins of Alamance, NC
These are the US cities whose 12-month climate pattern most closely matches Alamance'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: Alamance vs its climate twin
Top match: Alexandria, VA
| Month | Alamance | Alexandria | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 51.9°F | 30.0°F | 3.07 in | 44.8°F | 30.1°F | 2.86 in |
| February | 55.8°F | 32.6°F | 2.81 in | 48.3°F | 31.8°F | 2.62 in |
| March | 63.6°F | 39.3°F | 3.88 in | 56.5°F | 38.6°F | 3.50 in |
| April | 73.6°F | 47.9°F | 3.83 in | 68.0°F | 48.4°F | 3.21 in |
| May | 80.4°F | 57.0°F | 3.37 in | 76.5°F | 58.0°F | 3.94 in |
| June | 87.5°F | 65.2°F | 4.28 in | 85.1°F | 67.5°F | 4.20 in |
| July | 90.8°F | 69.5°F | 4.65 in | 89.6°F | 72.4°F | 4.33 in |
| August | 88.9°F | 68.1°F | 3.53 in | 87.8°F | 71.0°F | 3.25 in |
| September | 82.8°F | 61.5°F | 4.40 in | 80.7°F | 64.1°F | 3.93 in |
| October | 73.4°F | 48.7°F | 3.09 in | 69.4°F | 52.2°F | 3.66 in |
| November | 63.1°F | 38.1°F | 3.27 in | 58.2°F | 41.6°F | 2.91 in |
| December | 54.7°F | 32.8°F | 3.12 in | 48.8°F | 34.5°F | 3.41 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 →