Climate twins of St. Ignace, MI
These are the US cities whose 12-month climate pattern most closely matches St. Ignace'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: St. Ignace vs its climate twin
Top match: Marquette, MI
| Month | St. Ignace | Marquette | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 24.6°F | 11.1°F | 2.09 in | 24.6°F | 12.4°F | 1.86 in |
| February | 25.9°F | 10.0°F | 1.47 in | 26.9°F | 12.5°F | 1.47 in |
| March | 35.0°F | 18.1°F | 1.86 in | 35.3°F | 21.0°F | 1.59 in |
| April | 46.8°F | 29.4°F | 3.01 in | 45.8°F | 31.0°F | 2.74 in |
| May | 59.0°F | 39.9°F | 2.56 in | 58.7°F | 40.8°F | 2.90 in |
| June | 70.2°F | 50.8°F | 3.26 in | 67.9°F | 50.1°F | 3.05 in |
| July | 75.5°F | 57.1°F | 2.98 in | 74.6°F | 57.7°F | 3.11 in |
| August | 74.8°F | 56.2°F | 3.11 in | 74.3°F | 58.1°F | 2.31 in |
| September | 67.8°F | 49.5°F | 3.68 in | 67.3°F | 51.6°F | 3.34 in |
| October | 55.0°F | 39.1°F | 4.31 in | 53.9°F | 40.0°F | 3.43 in |
| November | 41.7°F | 29.5°F | 2.74 in | 40.6°F | 28.5°F | 2.42 in |
| December | 31.7°F | 19.9°F | 2.31 in | 30.2°F | 18.6°F | 1.98 in |
Cities that consider St. Ignace their climate twin
These US cities have St. Ignace in their top 3 most-similar list — meaning if you were to move from any of these places, St. Ignace would feel familiar.
- Chatham, MI (ranks St. Ignace #2)
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 →