Climate twins of Fort Calhoun, NE
These are the US cities whose 12-month climate pattern most closely matches Fort Calhoun'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: Fort Calhoun vs its climate twin
Top match: Lambs Grove, IA
| Month | Fort Calhoun | Lambs Grove | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 29.8°F | 12.8°F | 0.78 in | 28.0°F | 10.4°F | 0.93 in |
| February | 34.6°F | 16.3°F | 0.94 in | 33.0°F | 14.4°F | 1.10 in |
| March | 47.9°F | 27.1°F | 1.76 in | 46.4°F | 25.8°F | 2.06 in |
| April | 60.8°F | 38.8°F | 3.30 in | 60.4°F | 37.1°F | 3.44 in |
| May | 70.2°F | 50.4°F | 5.01 in | 71.4°F | 49.8°F | 4.84 in |
| June | 79.9°F | 61.2°F | 5.06 in | 81.2°F | 60.0°F | 5.01 in |
| July | 83.5°F | 65.4°F | 3.92 in | 84.6°F | 63.8°F | 3.93 in |
| August | 81.8°F | 63.3°F | 4.17 in | 82.5°F | 61.4°F | 4.30 in |
| September | 75.4°F | 54.2°F | 3.31 in | 76.2°F | 52.4°F | 3.59 in |
| October | 61.9°F | 41.5°F | 2.41 in | 62.5°F | 40.4°F | 2.66 in |
| November | 46.8°F | 28.1°F | 1.43 in | 46.7°F | 27.3°F | 2.01 in |
| December | 34.0°F | 17.9°F | 1.31 in | 33.6°F | 16.9°F | 1.27 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 →