Climate twins of Madison, VA
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: Centreville, MD
| Month | Madison | Centreville | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 44.9°F | 24.0°F | 2.99 in | 40.8°F | 27.1°F | 3.34 in |
| February | 48.2°F | 26.4°F | 2.70 in | 44.2°F | 28.1°F | 2.89 in |
| March | 56.4°F | 32.9°F | 3.62 in | 52.5°F | 35.1°F | 4.25 in |
| April | 67.5°F | 42.7°F | 3.53 in | 64.4°F | 45.0°F | 3.72 in |
| May | 74.9°F | 52.9°F | 4.57 in | 73.6°F | 54.9°F | 3.88 in |
| June | 83.1°F | 61.8°F | 4.80 in | 82.2°F | 64.0°F | 4.41 in |
| July | 87.1°F | 65.3°F | 3.95 in | 86.6°F | 68.7°F | 4.35 in |
| August | 85.6°F | 63.9°F | 3.65 in | 85.0°F | 67.2°F | 3.56 in |
| September | 79.3°F | 56.2°F | 4.56 in | 78.3°F | 60.2°F | 4.90 in |
| October | 68.7°F | 43.8°F | 3.64 in | 66.8°F | 48.1°F | 3.67 in |
| November | 58.0°F | 34.2°F | 3.47 in | 55.5°F | 38.1°F | 3.18 in |
| December | 48.7°F | 27.5°F | 3.51 in | 45.4°F | 31.1°F | 3.81 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 →