Climate twins of Swaledale, IA
These are the US cities whose 12-month climate pattern most closely matches Swaledale'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: Swaledale vs its climate twin
Top match: West Salem, WI
| Month | Swaledale | West Salem | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 24.2°F | 7.2°F | 0.89 in | 23.6°F | 8.3°F | 1.12 in |
| February | 28.5°F | 11.4°F | 1.22 in | 28.7°F | 12.8°F | 1.13 in |
| March | 42.1°F | 23.6°F | 2.29 in | 41.1°F | 24.4°F | 1.93 in |
| April | 57.5°F | 34.5°F | 4.15 in | 55.4°F | 36.1°F | 4.02 in |
| May | 69.6°F | 46.8°F | 5.15 in | 67.2°F | 47.9°F | 4.91 in |
| June | 79.6°F | 57.3°F | 5.39 in | 76.0°F | 57.8°F | 5.29 in |
| July | 82.5°F | 60.5°F | 4.43 in | 79.5°F | 61.8°F | 4.26 in |
| August | 80.2°F | 57.6°F | 3.79 in | 78.1°F | 60.3°F | 4.47 in |
| September | 74.1°F | 48.8°F | 3.45 in | 70.8°F | 52.0°F | 4.00 in |
| October | 59.9°F | 36.6°F | 2.53 in | 57.6°F | 39.9°F | 2.91 in |
| November | 43.6°F | 24.3°F | 1.67 in | 41.7°F | 27.7°F | 1.94 in |
| December | 29.7°F | 13.5°F | 1.29 in | 29.2°F | 15.4°F | 1.49 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 →