Climate twins of Coal Grove, OH
These are the US cities whose 12-month climate pattern most closely matches Coal Grove'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: Coal Grove vs its climate twin
Top match: Farmington, WV
| Month | Coal Grove | Farmington | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 39.8°F | 22.5°F | 3.51 in | 39.6°F | 24.0°F | 3.81 in |
| February | 44.4°F | 24.3°F | 3.69 in | 43.0°F | 25.5°F | 3.22 in |
| March | 53.9°F | 31.5°F | 4.36 in | 52.4°F | 32.6°F | 4.21 in |
| April | 66.6°F | 41.1°F | 3.85 in | 65.4°F | 42.4°F | 3.90 in |
| May | 74.7°F | 51.2°F | 4.85 in | 73.4°F | 51.6°F | 5.09 in |
| June | 82.5°F | 60.6°F | 4.46 in | 80.2°F | 59.8°F | 4.67 in |
| July | 85.4°F | 64.6°F | 4.58 in | 83.6°F | 63.7°F | 4.91 in |
| August | 84.3°F | 62.8°F | 3.91 in | 82.6°F | 62.5°F | 3.80 in |
| September | 78.2°F | 55.6°F | 3.32 in | 77.1°F | 55.8°F | 3.85 in |
| October | 66.6°F | 42.7°F | 2.97 in | 65.3°F | 44.5°F | 3.43 in |
| November | 54.0°F | 32.3°F | 2.98 in | 53.8°F | 35.5°F | 3.15 in |
| December | 43.9°F | 27.0°F | 4.20 in | 43.6°F | 28.7°F | 3.73 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 →