Climate twins of Shenandoah, IA
These are the US cities whose 12-month climate pattern most closely matches Shenandoah'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: Shenandoah vs its climate twin
Top match: Emporia, KS
| Month | Shenandoah | Emporia | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 33.4°F | 13.7°F | 0.92 in | 39.3°F | 18.2°F | 0.80 in |
| February | 38.7°F | 18.0°F | 1.21 in | 44.3°F | 21.8°F | 1.21 in |
| March | 51.6°F | 29.3°F | 2.06 in | 55.2°F | 31.0°F | 2.30 in |
| April | 63.7°F | 39.9°F | 3.34 in | 64.8°F | 40.9°F | 3.40 in |
| May | 73.8°F | 52.5°F | 6.16 in | 73.8°F | 52.2°F | 5.39 in |
| June | 83.3°F | 63.1°F | 5.53 in | 83.5°F | 62.2°F | 4.83 in |
| July | 86.9°F | 66.7°F | 4.36 in | 88.5°F | 66.8°F | 4.61 in |
| August | 85.2°F | 64.0°F | 3.77 in | 87.3°F | 64.6°F | 4.05 in |
| September | 79.0°F | 54.5°F | 3.02 in | 79.4°F | 55.7°F | 3.21 in |
| October | 66.3°F | 41.6°F | 2.84 in | 67.6°F | 43.5°F | 2.89 in |
| November | 50.7°F | 29.4°F | 1.76 in | 54.0°F | 31.5°F | 1.77 in |
| December | 37.9°F | 19.1°F | 1.40 in | 42.5°F | 22.4°F | 1.36 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 →