Climate twins of Grand Marais, MN
These are the US cities whose 12-month climate pattern most closely matches Grand Marais'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: Grand Marais vs its climate twin
Top match: Ishpeming, MI
| Month | Grand Marais | Ishpeming | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 21.4°F | 5.7°F | 0.99 in | 22.1°F | 6.1°F | 1.59 in |
| February | 24.7°F | 7.7°F | 0.72 in | 25.0°F | 5.6°F | 1.34 in |
| March | 33.3°F | 17.9°F | 0.95 in | 35.5°F | 12.2°F | 1.23 in |
| April | 43.5°F | 28.7°F | 1.84 in | 47.4°F | 25.0°F | 2.41 in |
| May | 53.4°F | 37.4°F | 2.61 in | 62.4°F | 38.1°F | 2.95 in |
| June | 61.2°F | 44.0°F | 3.55 in | 72.2°F | 48.9°F | 3.09 in |
| July | 69.2°F | 51.7°F | 3.39 in | 77.6°F | 53.0°F | 3.88 in |
| August | 69.5°F | 54.0°F | 2.56 in | 75.8°F | 51.0°F | 2.36 in |
| September | 61.9°F | 47.3°F | 2.83 in | 67.9°F | 44.1°F | 3.61 in |
| October | 49.7°F | 36.4°F | 3.04 in | 53.2°F | 33.3°F | 3.61 in |
| November | 36.6°F | 24.4°F | 1.81 in | 38.2°F | 22.6°F | 2.19 in |
| December | 26.3°F | 12.6°F | 1.46 in | 26.9°F | 12.2°F | 1.99 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 →