Climate twins of Grabill, IN
These are the US cities whose 12-month climate pattern most closely matches Grabill'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: Grabill vs its climate twin
Top match: Attica, OH
| Month | Grabill | Attica | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 31.9°F | 17.7°F | 2.44 in | 33.3°F | 18.7°F | 2.57 in |
| February | 35.3°F | 19.2°F | 1.97 in | 36.4°F | 20.5°F | 2.24 in |
| March | 46.3°F | 27.4°F | 2.54 in | 46.5°F | 28.8°F | 2.73 in |
| April | 59.8°F | 37.3°F | 3.57 in | 60.0°F | 38.7°F | 3.82 in |
| May | 71.1°F | 48.7°F | 4.67 in | 71.5°F | 50.4°F | 4.10 in |
| June | 80.7°F | 59.0°F | 3.86 in | 80.5°F | 59.9°F | 4.20 in |
| July | 84.3°F | 62.3°F | 3.57 in | 83.9°F | 63.6°F | 3.91 in |
| August | 82.1°F | 59.7°F | 3.99 in | 82.5°F | 61.8°F | 3.54 in |
| September | 76.2°F | 52.1°F | 3.07 in | 76.7°F | 54.3°F | 3.32 in |
| October | 63.4°F | 41.5°F | 2.58 in | 63.8°F | 42.9°F | 2.76 in |
| November | 48.8°F | 31.3°F | 2.91 in | 49.7°F | 33.4°F | 2.89 in |
| December | 36.9°F | 23.2°F | 2.31 in | 38.2°F | 24.5°F | 2.61 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 →