Climate twins of Andover, SD
These are the US cities whose 12-month climate pattern most closely matches Andover'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: Andover vs its climate twin
Top match: Genola, MN
| Month | Andover | Genola | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 21.5°F | 4.6°F | 0.57 in | 23.9°F | 3.5°F | 0.76 in |
| February | 27.1°F | 8.6°F | 0.57 in | 28.9°F | 7.1°F | 0.66 in |
| March | 40.4°F | 21.3°F | 0.92 in | 42.5°F | 20.3°F | 1.27 in |
| April | 55.7°F | 33.0°F | 2.00 in | 57.8°F | 32.8°F | 2.26 in |
| May | 68.1°F | 45.9°F | 3.19 in | 71.1°F | 45.2°F | 3.34 in |
| June | 77.3°F | 56.2°F | 3.92 in | 80.2°F | 55.1°F | 4.34 in |
| July | 81.7°F | 61.3°F | 3.81 in | 84.7°F | 60.2°F | 3.73 in |
| August | 80.4°F | 59.2°F | 2.74 in | 82.4°F | 57.7°F | 3.25 in |
| September | 72.5°F | 50.3°F | 2.47 in | 74.5°F | 49.6°F | 2.96 in |
| October | 57.7°F | 36.5°F | 2.20 in | 58.9°F | 37.4°F | 2.45 in |
| November | 41.4°F | 22.8°F | 0.78 in | 41.7°F | 23.2°F | 1.26 in |
| December | 27.5°F | 10.6°F | 0.81 in | 27.9°F | 10.4°F | 0.90 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 →