Climate twins of Madison, NC
These are the US cities whose 12-month climate pattern most closely matches Madison'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: Madison vs its climate twin
Top match: Ashland, VA
| Month | Madison | Ashland | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 47.9°F | 28.6°F | 3.75 in | 46.8°F | 27.2°F | 3.29 in |
| February | 51.6°F | 30.3°F | 2.93 in | 51.1°F | 29.0°F | 2.82 in |
| March | 59.3°F | 36.4°F | 4.09 in | 59.9°F | 35.7°F | 3.79 in |
| April | 69.5°F | 44.5°F | 3.93 in | 71.1°F | 45.2°F | 3.41 in |
| May | 76.5°F | 54.5°F | 4.41 in | 76.5°F | 54.7°F | 4.24 in |
| June | 83.7°F | 63.1°F | 4.17 in | 82.9°F | 63.2°F | 4.58 in |
| July | 87.2°F | 67.6°F | 4.28 in | 86.7°F | 67.6°F | 4.29 in |
| August | 85.1°F | 66.1°F | 4.38 in | 85.1°F | 66.2°F | 3.91 in |
| September | 79.4°F | 59.4°F | 4.98 in | 79.2°F | 59.5°F | 4.19 in |
| October | 70.2°F | 46.7°F | 3.49 in | 68.9°F | 47.7°F | 3.69 in |
| November | 59.9°F | 36.0°F | 3.07 in | 59.0°F | 37.4°F | 3.37 in |
| December | 51.1°F | 31.4°F | 3.96 in | 49.9°F | 30.2°F | 3.72 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 →