Climate twins of Mahtomedi, MN
These are the US cities whose 12-month climate pattern most closely matches Mahtomedi'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: Mahtomedi vs its climate twin
Top match: Fairchild, WI
| Month | Mahtomedi | Fairchild | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 22.3°F | 5.0°F | 0.85 in | 22.2°F | 3.8°F | 0.98 in |
| February | 27.7°F | 7.8°F | 0.92 in | 26.8°F | 6.3°F | 1.06 in |
| March | 40.7°F | 20.0°F | 1.62 in | 39.5°F | 19.4°F | 1.70 in |
| April | 55.1°F | 33.9°F | 2.97 in | 54.3°F | 32.8°F | 3.11 in |
| May | 67.2°F | 46.9°F | 4.17 in | 67.6°F | 45.3°F | 4.30 in |
| June | 75.8°F | 57.5°F | 4.79 in | 77.2°F | 55.6°F | 5.09 in |
| July | 79.3°F | 62.3°F | 4.38 in | 81.6°F | 58.9°F | 4.25 in |
| August | 77.7°F | 60.4°F | 4.41 in | 78.8°F | 56.9°F | 4.42 in |
| September | 70.7°F | 51.2°F | 3.32 in | 70.3°F | 48.4°F | 3.76 in |
| October | 57.7°F | 38.0°F | 2.74 in | 56.5°F | 35.3°F | 2.63 in |
| November | 41.4°F | 25.1°F | 1.82 in | 40.8°F | 23.9°F | 1.79 in |
| December | 27.5°F | 12.5°F | 1.21 in | 27.7°F | 11.3°F | 1.39 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 →