Climate twins of Hillsboro, MD
These are the US cities whose 12-month climate pattern most closely matches Hillsboro'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: Hillsboro vs its climate twin
Top match: Kenbridge, VA
| Month | Hillsboro | Kenbridge | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 44.6°F | 29.3°F | 3.52 in | 48.2°F | 26.5°F | 3.74 in |
| February | 47.4°F | 30.5°F | 3.06 in | 51.9°F | 28.2°F | 2.86 in |
| March | 55.6°F | 37.2°F | 4.39 in | 59.2°F | 35.0°F | 4.12 in |
| April | 66.9°F | 46.6°F | 3.67 in | 69.8°F | 44.1°F | 3.69 in |
| May | 75.4°F | 56.2°F | 3.95 in | 76.7°F | 54.4°F | 4.35 in |
| June | 83.7°F | 65.5°F | 4.04 in | 84.1°F | 63.1°F | 4.28 in |
| July | 88.1°F | 70.1°F | 4.34 in | 87.7°F | 67.8°F | 4.43 in |
| August | 86.3°F | 68.0°F | 4.78 in | 85.9°F | 66.1°F | 4.20 in |
| September | 80.1°F | 61.5°F | 4.18 in | 80.4°F | 59.3°F | 4.39 in |
| October | 69.0°F | 50.6°F | 4.36 in | 70.4°F | 46.5°F | 3.90 in |
| November | 57.9°F | 40.8°F | 3.38 in | 60.4°F | 35.8°F | 3.13 in |
| December | 48.6°F | 33.3°F | 3.94 in | 51.6°F | 29.7°F | 3.75 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 →