Climate twins of Luther, IA
These are the US cities whose 12-month climate pattern most closely matches Luther'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: Luther vs its climate twin
Top match: Missouri Valley, IA
| Month | Luther | Missouri Valley | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 28.9°F | 11.9°F | 0.69 in | 30.7°F | 9.9°F | 0.72 in |
| February | 33.6°F | 16.1°F | 1.02 in | 35.5°F | 13.5°F | 0.98 in |
| March | 47.7°F | 27.7°F | 2.01 in | 48.9°F | 25.8°F | 1.82 in |
| April | 62.0°F | 38.6°F | 3.89 in | 61.7°F | 36.3°F | 3.40 in |
| May | 72.5°F | 50.7°F | 4.99 in | 72.5°F | 49.4°F | 4.95 in |
| June | 81.3°F | 60.9°F | 4.89 in | 82.4°F | 60.1°F | 5.21 in |
| July | 83.9°F | 64.1°F | 4.53 in | 85.6°F | 64.1°F | 4.06 in |
| August | 81.8°F | 61.8°F | 4.75 in | 83.7°F | 61.2°F | 4.29 in |
| September | 77.0°F | 53.5°F | 3.47 in | 77.5°F | 51.3°F | 3.54 in |
| October | 64.1°F | 41.4°F | 2.63 in | 64.7°F | 38.2°F | 2.61 in |
| November | 47.5°F | 28.6°F | 1.86 in | 48.6°F | 25.4°F | 1.45 in |
| December | 33.7°F | 17.5°F | 1.17 in | 35.3°F | 15.3°F | 1.40 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 →