Climate twins of Harrisburg, PA
These are the US cities whose 12-month climate pattern most closely matches Harrisburg'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: Harrisburg vs its climate twin
Top match: Elyria, OH
| Month | Harrisburg | Elyria | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 36.6°F | 21.8°F | 2.87 in | 36.3°F | 21.5°F | 2.84 in |
| February | 39.5°F | 22.5°F | 2.77 in | 39.6°F | 22.8°F | 2.37 in |
| March | 48.1°F | 30.0°F | 3.93 in | 49.0°F | 30.2°F | 2.99 in |
| April | 61.0°F | 40.2°F | 3.91 in | 62.8°F | 39.9°F | 3.75 in |
| May | 71.7°F | 50.6°F | 4.02 in | 73.3°F | 50.8°F | 3.94 in |
| June | 80.6°F | 60.3°F | 4.00 in | 81.0°F | 60.2°F | 4.04 in |
| July | 85.2°F | 64.7°F | 4.81 in | 84.9°F | 64.7°F | 4.13 in |
| August | 82.9°F | 62.4°F | 4.28 in | 83.0°F | 62.9°F | 4.11 in |
| September | 75.1°F | 54.8°F | 4.58 in | 77.0°F | 56.2°F | 4.05 in |
| October | 63.1°F | 43.1°F | 3.77 in | 65.3°F | 45.6°F | 3.63 in |
| November | 51.1°F | 33.8°F | 2.87 in | 52.3°F | 35.6°F | 3.04 in |
| December | 40.8°F | 26.7°F | 3.42 in | 40.8°F | 27.4°F | 3.07 in |
Cities that consider Harrisburg their climate twin
These US cities have Harrisburg in their top 3 most-similar list — meaning if you were to move from any of these places, Harrisburg would feel familiar.
- Burlington, NJ (ranks Harrisburg #2)
- Leon, WV (ranks Harrisburg #3)
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 →