Climate twins of Hagerstown, MD
These are the US cities whose 12-month climate pattern most closely matches Hagerstown'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: Hagerstown vs its climate twin
Top match: Lynchburg, VA
| Month | Hagerstown | Lynchburg | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 39.8°F | 22.3°F | 3.23 in | 46.4°F | 24.5°F | 3.38 in |
| February | 43.5°F | 24.7°F | 2.66 in | 49.7°F | 26.3°F | 2.85 in |
| March | 52.9°F | 31.7°F | 3.90 in | 58.0°F | 32.5°F | 3.66 in |
| April | 65.0°F | 41.2°F | 3.87 in | 68.0°F | 41.3°F | 3.64 in |
| May | 74.1°F | 53.0°F | 4.31 in | 74.8°F | 51.4°F | 4.18 in |
| June | 82.6°F | 61.6°F | 3.43 in | 82.0°F | 59.9°F | 3.98 in |
| July | 86.2°F | 66.4°F | 3.66 in | 85.3°F | 64.5°F | 4.07 in |
| August | 85.1°F | 64.9°F | 3.66 in | 83.9°F | 63.2°F | 3.63 in |
| September | 78.2°F | 56.1°F | 4.80 in | 77.8°F | 56.1°F | 3.93 in |
| October | 66.1°F | 44.7°F | 3.42 in | 68.8°F | 43.6°F | 3.36 in |
| November | 53.8°F | 34.3°F | 2.92 in | 58.8°F | 32.6°F | 3.17 in |
| December | 44.0°F | 27.3°F | 3.69 in | 49.1°F | 27.6°F | 3.76 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 →