Climate twins of Delaware, OH
These are the US cities whose 12-month climate pattern most closely matches Delaware'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: Delaware vs its climate twin
Top match: New Richmond, IN
| Month | Delaware | New Richmond | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 35.0°F | 20.6°F | 2.68 in | 33.2°F | 17.7°F | 2.45 in |
| February | 38.9°F | 22.9°F | 2.29 in | 37.7°F | 20.7°F | 1.95 in |
| March | 49.6°F | 30.8°F | 3.02 in | 49.2°F | 30.2°F | 2.70 in |
| April | 63.0°F | 41.0°F | 3.86 in | 61.9°F | 40.9°F | 3.91 in |
| May | 73.6°F | 51.8°F | 4.52 in | 72.9°F | 52.5°F | 4.37 in |
| June | 81.7°F | 60.8°F | 4.85 in | 81.4°F | 61.7°F | 5.01 in |
| July | 84.9°F | 64.4°F | 4.15 in | 83.6°F | 64.2°F | 4.26 in |
| August | 83.5°F | 62.4°F | 3.41 in | 82.4°F | 62.1°F | 3.68 in |
| September | 77.5°F | 54.7°F | 3.20 in | 77.8°F | 54.6°F | 2.96 in |
| October | 65.0°F | 43.8°F | 2.72 in | 65.4°F | 43.6°F | 2.98 in |
| November | 50.9°F | 33.7°F | 2.90 in | 50.5°F | 33.0°F | 3.17 in |
| December | 39.6°F | 26.1°F | 2.88 in | 38.4°F | 23.5°F | 2.39 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 →