Climate twins of Alton, KS
These are the US cities whose 12-month climate pattern most closely matches Alton'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: Alton vs its climate twin
Top match: Brock, NE
| Month | Alton | Brock | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 41.6°F | 14.4°F | 0.67 in | 34.7°F | 14.1°F | 0.76 in |
| February | 46.0°F | 17.9°F | 0.69 in | 40.0°F | 18.6°F | 1.11 in |
| March | 56.7°F | 27.1°F | 1.55 in | 53.3°F | 29.4°F | 2.00 in |
| April | 66.5°F | 36.4°F | 2.30 in | 65.0°F | 40.2°F | 2.90 in |
| May | 76.3°F | 48.3°F | 4.23 in | 75.3°F | 53.4°F | 4.99 in |
| June | 87.6°F | 59.5°F | 3.51 in | 84.2°F | 63.4°F | 4.40 in |
| July | 92.6°F | 65.3°F | 4.92 in | 87.3°F | 67.1°F | 4.34 in |
| August | 90.6°F | 62.6°F | 3.85 in | 85.7°F | 63.9°F | 3.34 in |
| September | 82.9°F | 52.9°F | 2.64 in | 80.0°F | 54.8°F | 3.07 in |
| October | 70.0°F | 39.3°F | 2.11 in | 67.1°F | 41.9°F | 2.49 in |
| November | 55.8°F | 25.9°F | 1.19 in | 51.7°F | 29.0°F | 1.74 in |
| December | 44.0°F | 17.5°F | 0.93 in | 39.1°F | 19.0°F | 1.17 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 →