Climate twins of East Grand Rapids, MI
These are the US cities whose 12-month climate pattern most closely matches East Grand Rapids'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: East Grand Rapids vs its climate twin
Top match: Creston, OH
| Month | East Grand Rapids | Creston | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 30.5°F | 17.0°F | 2.72 in | 32.2°F | 16.8°F | 2.88 in |
| February | 33.8°F | 17.8°F | 2.11 in | 34.9°F | 17.9°F | 2.23 in |
| March | 44.1°F | 24.4°F | 2.60 in | 44.8°F | 25.9°F | 3.08 in |
| April | 57.2°F | 34.7°F | 4.10 in | 58.2°F | 36.7°F | 3.71 in |
| May | 69.3°F | 45.8°F | 4.40 in | 69.0°F | 47.0°F | 4.04 in |
| June | 78.5°F | 56.3°F | 4.03 in | 77.6°F | 56.7°F | 4.26 in |
| July | 82.4°F | 60.0°F | 3.31 in | 81.6°F | 60.1°F | 4.14 in |
| August | 80.7°F | 58.1°F | 3.05 in | 80.3°F | 58.8°F | 3.58 in |
| September | 73.6°F | 50.6°F | 3.52 in | 74.0°F | 52.0°F | 3.38 in |
| October | 60.8°F | 40.0°F | 3.70 in | 61.4°F | 41.0°F | 3.37 in |
| November | 46.9°F | 30.5°F | 3.30 in | 48.3°F | 31.4°F | 2.95 in |
| December | 35.5°F | 23.2°F | 2.76 in | 37.0°F | 22.7°F | 2.93 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 →