Climate twins of Brookville, IN
These are the US cities whose 12-month climate pattern most closely matches Brookville'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: Brookville vs its climate twin
Top match: Vandalia, IL
| Month | Brookville | Vandalia | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 38.1°F | 20.5°F | 3.36 in | 36.9°F | 20.7°F | 2.97 in |
| February | 42.4°F | 22.6°F | 2.67 in | 41.9°F | 24.2°F | 2.49 in |
| March | 53.0°F | 30.6°F | 3.58 in | 52.7°F | 33.2°F | 3.32 in |
| April | 65.8°F | 40.5°F | 4.60 in | 65.1°F | 43.3°F | 4.86 in |
| May | 75.6°F | 51.2°F | 4.79 in | 74.9°F | 54.2°F | 5.30 in |
| June | 83.6°F | 60.1°F | 4.89 in | 83.7°F | 63.2°F | 4.87 in |
| July | 87.1°F | 63.7°F | 3.89 in | 86.8°F | 66.6°F | 3.90 in |
| August | 86.4°F | 62.3°F | 3.00 in | 85.9°F | 64.4°F | 3.24 in |
| September | 80.5°F | 54.5°F | 2.96 in | 79.6°F | 55.8°F | 3.07 in |
| October | 68.3°F | 42.4°F | 3.30 in | 67.7°F | 44.0°F | 3.26 in |
| November | 54.3°F | 32.6°F | 3.40 in | 53.7°F | 34.1°F | 3.76 in |
| December | 42.6°F | 25.5°F | 3.37 in | 41.5°F | 25.6°F | 2.69 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 →