Climate twins of Etna Green, IN
These are the US cities whose 12-month climate pattern most closely matches Etna Green'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: Etna Green vs its climate twin
Top match: Stanford, IL
| Month | Etna Green | Stanford | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 33.0°F | 16.6°F | 2.59 in | 30.9°F | 15.6°F | 2.40 in |
| February | 36.8°F | 18.9°F | 1.98 in | 36.1°F | 19.3°F | 2.08 in |
| March | 47.9°F | 27.5°F | 2.16 in | 48.5°F | 28.9°F | 2.61 in |
| April | 60.9°F | 37.9°F | 4.05 in | 62.0°F | 38.9°F | 4.08 in |
| May | 71.7°F | 48.7°F | 4.89 in | 72.2°F | 50.4°F | 4.83 in |
| June | 80.8°F | 58.2°F | 4.72 in | 81.3°F | 59.6°F | 4.58 in |
| July | 83.8°F | 61.7°F | 4.41 in | 84.2°F | 63.4°F | 4.05 in |
| August | 81.8°F | 59.8°F | 4.52 in | 82.6°F | 61.4°F | 4.13 in |
| September | 76.2°F | 52.4°F | 2.90 in | 76.3°F | 54.1°F | 3.15 in |
| October | 63.6°F | 41.6°F | 3.17 in | 62.7°F | 42.2°F | 3.45 in |
| November | 49.8°F | 31.4°F | 2.71 in | 47.5°F | 30.3°F | 2.80 in |
| December | 37.7°F | 22.3°F | 2.44 in | 35.4°F | 21.2°F | 2.28 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 →