Climate twins of Harrisonburg, VA
These are the US cities whose 12-month climate pattern most closely matches Harrisonburg'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: Harrisonburg vs its climate twin
Top match: Philo, OH
| Month | Harrisonburg | Philo | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 42.1°F | 22.7°F | 2.71 in | 38.4°F | 23.1°F | 2.74 in |
| February | 46.1°F | 23.6°F | 2.22 in | 42.4°F | 25.6°F | 2.14 in |
| March | 53.6°F | 30.4°F | 3.21 in | 52.4°F | 33.2°F | 3.17 in |
| April | 64.7°F | 39.6°F | 3.27 in | 65.6°F | 43.4°F | 3.75 in |
| May | 73.5°F | 50.3°F | 4.02 in | 73.7°F | 52.6°F | 4.09 in |
| June | 82.0°F | 59.7°F | 3.93 in | 80.4°F | 60.3°F | 4.49 in |
| July | 86.0°F | 63.7°F | 4.08 in | 84.1°F | 64.2°F | 4.18 in |
| August | 84.3°F | 62.1°F | 3.81 in | 83.2°F | 62.6°F | 3.25 in |
| September | 77.8°F | 54.8°F | 3.74 in | 77.2°F | 55.9°F | 3.40 in |
| October | 66.8°F | 43.0°F | 2.50 in | 66.0°F | 45.6°F | 2.89 in |
| November | 55.7°F | 32.5°F | 2.60 in | 53.4°F | 36.3°F | 2.74 in |
| December | 46.0°F | 26.0°F | 2.91 in | 42.5°F | 28.4°F | 2.68 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 →