Climate twins of Ottosen, IA
These are the US cities whose 12-month climate pattern most closely matches Ottosen'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: Ottosen vs its climate twin
Top match: Afton, MN
| Month | Ottosen | Afton | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 24.9°F | 6.0°F | 0.90 in | 24.1°F | 5.7°F | 0.90 in |
| February | 29.3°F | 10.2°F | 1.04 in | 29.0°F | 8.7°F | 0.91 in |
| March | 42.7°F | 22.6°F | 1.95 in | 41.1°F | 21.8°F | 1.78 in |
| April | 58.4°F | 33.8°F | 3.36 in | 56.4°F | 35.7°F | 3.10 in |
| May | 70.5°F | 46.5°F | 4.72 in | 68.6°F | 47.8°F | 4.33 in |
| June | 80.2°F | 57.8°F | 5.49 in | 78.8°F | 58.6°F | 4.94 in |
| July | 83.1°F | 61.2°F | 4.13 in | 83.0°F | 63.3°F | 4.37 in |
| August | 80.6°F | 58.8°F | 4.27 in | 80.9°F | 61.3°F | 4.23 in |
| September | 75.2°F | 50.1°F | 3.27 in | 73.4°F | 53.1°F | 3.21 in |
| October | 61.8°F | 37.5°F | 2.44 in | 59.4°F | 40.0°F | 2.61 in |
| November | 44.7°F | 23.9°F | 1.46 in | 43.0°F | 26.6°F | 1.72 in |
| December | 30.5°F | 12.8°F | 1.06 in | 29.7°F | 13.7°F | 1.23 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 →