Climate twins of Iowa Falls, IA
These are the US cities whose 12-month climate pattern most closely matches Iowa Falls'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: Iowa Falls vs its climate twin
Top match: Lynxville, WI
| Month | Iowa Falls | Lynxville | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 25.7°F | 8.1°F | 0.92 in | 26.6°F | 9.6°F | 1.29 in |
| February | 30.6°F | 12.1°F | 1.16 in | 31.4°F | 13.1°F | 1.18 in |
| March | 43.5°F | 24.4°F | 2.08 in | 44.0°F | 25.3°F | 2.03 in |
| April | 58.3°F | 35.3°F | 3.80 in | 58.3°F | 37.3°F | 3.75 in |
| May | 69.9°F | 47.7°F | 5.57 in | 70.1°F | 48.7°F | 4.68 in |
| June | 79.9°F | 58.4°F | 6.13 in | 79.1°F | 58.7°F | 5.50 in |
| July | 82.9°F | 62.2°F | 4.54 in | 82.5°F | 63.1°F | 4.47 in |
| August | 80.8°F | 59.7°F | 4.37 in | 80.1°F | 61.3°F | 3.82 in |
| September | 74.8°F | 50.6°F | 3.49 in | 73.3°F | 53.3°F | 3.79 in |
| October | 61.7°F | 38.3°F | 2.56 in | 59.9°F | 41.1°F | 2.53 in |
| November | 45.0°F | 25.6°F | 1.97 in | 44.4°F | 28.6°F | 2.02 in |
| December | 31.5°F | 14.9°F | 1.54 in | 31.6°F | 17.0°F | 1.45 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 →