Climate twins of Gratiot, WI
These are the US cities whose 12-month climate pattern most closely matches Gratiot'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: Gratiot vs its climate twin
Top match: Mount Auburn, IA
| Month | Gratiot | Mount Auburn | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 27.3°F | 8.4°F | 1.31 in | 25.6°F | 8.1°F | 1.19 in |
| February | 31.8°F | 11.5°F | 1.43 in | 30.4°F | 12.3°F | 1.25 in |
| March | 44.3°F | 22.9°F | 2.02 in | 44.4°F | 23.8°F | 2.05 in |
| April | 57.7°F | 34.7°F | 3.89 in | 58.7°F | 34.9°F | 3.90 in |
| May | 69.4°F | 46.1°F | 4.18 in | 69.4°F | 46.6°F | 5.01 in |
| June | 78.9°F | 56.7°F | 5.29 in | 78.3°F | 56.6°F | 5.62 in |
| July | 82.2°F | 59.7°F | 4.22 in | 81.4°F | 60.2°F | 4.15 in |
| August | 80.5°F | 57.5°F | 4.36 in | 79.3°F | 57.7°F | 4.22 in |
| September | 73.8°F | 48.4°F | 4.10 in | 73.5°F | 49.5°F | 3.68 in |
| October | 60.9°F | 37.2°F | 2.80 in | 60.2°F | 37.3°F | 3.22 in |
| November | 45.5°F | 25.8°F | 2.35 in | 44.2°F | 25.2°F | 2.05 in |
| December | 32.6°F | 15.0°F | 1.69 in | 31.0°F | 14.5°F | 1.59 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 →