Climate twins of Valley Springs, SD
These are the US cities whose 12-month climate pattern most closely matches Valley Springs'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: Valley Springs vs its climate twin
Top match: Port Edwards, WI
| Month | Valley Springs | Port Edwards | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 24.2°F | 6.4°F | 0.71 in | 24.5°F | 7.7°F | 0.95 in |
| February | 29.0°F | 10.7°F | 0.89 in | 29.1°F | 10.5°F | 0.90 in |
| March | 41.9°F | 22.8°F | 1.80 in | 41.5°F | 21.7°F | 1.96 in |
| April | 56.6°F | 34.1°F | 3.26 in | 55.7°F | 32.9°F | 2.98 in |
| May | 69.3°F | 46.7°F | 3.79 in | 68.5°F | 44.6°F | 3.68 in |
| June | 78.8°F | 57.5°F | 4.99 in | 78.1°F | 54.8°F | 4.58 in |
| July | 82.7°F | 60.6°F | 3.44 in | 82.4°F | 58.8°F | 3.56 in |
| August | 79.6°F | 58.7°F | 3.23 in | 79.7°F | 57.1°F | 3.83 in |
| September | 73.2°F | 49.2°F | 3.08 in | 71.8°F | 48.7°F | 3.43 in |
| October | 59.0°F | 36.6°F | 2.30 in | 57.9°F | 37.1°F | 2.51 in |
| November | 42.4°F | 23.0°F | 1.27 in | 42.5°F | 25.6°F | 1.70 in |
| December | 29.0°F | 11.8°F | 0.86 in | 29.5°F | 14.2°F | 1.22 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 →