Climate twins of Roseau, MN
These are the US cities whose 12-month climate pattern most closely matches Roseau'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: Roseau vs its climate twin
Top match: Littlefork, MN
| Month | Roseau | Littlefork | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 13.2°F | -8.0°F | 0.77 in | 15.4°F | -7.6°F | 0.70 in |
| February | 18.9°F | -4.8°F | 0.56 in | 22.2°F | -4.3°F | 0.64 in |
| March | 32.5°F | 9.6°F | 0.81 in | 35.8°F | 11.3°F | 1.22 in |
| April | 47.6°F | 24.7°F | 1.59 in | 50.4°F | 26.6°F | 1.91 in |
| May | 62.2°F | 39.5°F | 3.49 in | 64.1°F | 39.3°F | 3.29 in |
| June | 72.0°F | 50.7°F | 4.77 in | 73.3°F | 49.9°F | 4.46 in |
| July | 76.9°F | 54.6°F | 3.69 in | 77.5°F | 54.1°F | 3.55 in |
| August | 75.4°F | 52.1°F | 4.30 in | 75.9°F | 52.1°F | 3.33 in |
| September | 66.3°F | 43.1°F | 3.00 in | 66.7°F | 43.1°F | 3.09 in |
| October | 50.8°F | 30.9°F | 2.52 in | 52.0°F | 31.4°F | 2.31 in |
| November | 33.5°F | 16.7°F | 1.26 in | 35.0°F | 18.3°F | 1.54 in |
| December | 19.2°F | 1.4°F | 0.93 in | 21.6°F | 2.3°F | 1.09 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 →