Climate twins of Flandreau, SD
These are the US cities whose 12-month climate pattern most closely matches Flandreau'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: Flandreau vs its climate twin
Top match: Litchfield, MN
| Month | Flandreau | Litchfield | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 22.6°F | 3.5°F | 0.54 in | 20.1°F | -0.2°F | 0.78 in |
| February | 27.6°F | 7.0°F | 0.76 in | 24.8°F | 3.6°F | 0.78 in |
| March | 39.7°F | 19.3°F | 1.32 in | 37.4°F | 16.9°F | 1.48 in |
| April | 54.4°F | 31.4°F | 2.67 in | 53.3°F | 31.6°F | 2.65 in |
| May | 67.0°F | 44.7°F | 4.12 in | 66.5°F | 44.8°F | 3.72 in |
| June | 76.8°F | 56.1°F | 4.53 in | 76.8°F | 56.0°F | 4.58 in |
| July | 81.3°F | 59.9°F | 3.81 in | 81.2°F | 60.2°F | 3.81 in |
| August | 79.0°F | 57.2°F | 3.60 in | 78.7°F | 57.7°F | 4.08 in |
| September | 72.3°F | 47.8°F | 3.07 in | 71.1°F | 48.3°F | 3.04 in |
| October | 58.2°F | 34.2°F | 2.21 in | 56.4°F | 34.2°F | 2.56 in |
| November | 41.4°F | 21.1°F | 1.01 in | 39.7°F | 20.9°F | 1.35 in |
| December | 27.5°F | 9.6°F | 0.85 in | 25.5°F | 7.4°F | 0.95 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 →