Climate twins of Brunsville, IA
These are the US cities whose 12-month climate pattern most closely matches Brunsville'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: Brunsville vs its climate twin
Top match: Eau Claire, WI
| Month | Brunsville | Eau Claire | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 27.2°F | 7.4°F | 0.72 in | 24.5°F | 7.9°F | 1.10 in |
| February | 32.2°F | 11.4°F | 0.87 in | 28.7°F | 11.7°F | 1.14 in |
| March | 45.9°F | 23.1°F | 1.85 in | 41.6°F | 23.9°F | 1.93 in |
| April | 59.9°F | 34.2°F | 3.07 in | 56.4°F | 35.9°F | 3.27 in |
| May | 71.7°F | 47.0°F | 3.90 in | 69.3°F | 48.6°F | 4.12 in |
| June | 81.3°F | 58.3°F | 4.64 in | 77.8°F | 58.2°F | 4.53 in |
| July | 84.5°F | 61.7°F | 3.11 in | 82.3°F | 62.1°F | 3.68 in |
| August | 82.0°F | 59.0°F | 3.95 in | 79.9°F | 61.0°F | 3.84 in |
| September | 75.8°F | 49.6°F | 3.14 in | 71.8°F | 51.7°F | 3.53 in |
| October | 62.5°F | 36.9°F | 2.40 in | 58.2°F | 39.7°F | 2.48 in |
| November | 45.7°F | 23.5°F | 1.30 in | 41.8°F | 26.9°F | 1.78 in |
| December | 32.0°F | 12.9°F | 1.04 in | 29.7°F | 14.8°F | 1.35 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 →