Climate twins of Lamoni, IA
These are the US cities whose 12-month climate pattern most closely matches Lamoni'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: Lamoni vs its climate twin
Top match: West Point, IL
| Month | Lamoni | West Point | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 33.1°F | 13.9°F | 1.12 in | 33.9°F | 17.7°F | 1.67 in |
| February | 38.2°F | 17.6°F | 1.65 in | 38.9°F | 21.7°F | 1.98 in |
| March | 50.8°F | 28.8°F | 2.50 in | 50.9°F | 31.9°F | 2.57 in |
| April | 63.0°F | 39.5°F | 4.25 in | 63.4°F | 42.1°F | 4.11 in |
| May | 73.1°F | 51.9°F | 5.86 in | 73.7°F | 53.4°F | 5.28 in |
| June | 83.0°F | 62.2°F | 5.41 in | 83.0°F | 63.2°F | 4.85 in |
| July | 87.2°F | 66.2°F | 4.80 in | 86.3°F | 66.5°F | 4.29 in |
| August | 85.6°F | 64.1°F | 4.52 in | 84.9°F | 63.8°F | 4.19 in |
| September | 78.4°F | 54.8°F | 3.78 in | 78.8°F | 55.5°F | 3.67 in |
| October | 65.2°F | 42.4°F | 3.27 in | 66.0°F | 44.1°F | 3.16 in |
| November | 50.4°F | 29.7°F | 2.25 in | 51.3°F | 32.8°F | 2.45 in |
| December | 38.1°F | 19.7°F | 1.62 in | 39.1°F | 23.6°F | 1.89 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 →