Climate twins of Hales Corners, WI
These are the US cities whose 12-month climate pattern most closely matches Hales Corners'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: Hales Corners vs its climate twin
Top match: Hanover, IL
| Month | Hales Corners | Hanover | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 29.8°F | 12.2°F | 1.80 in | 28.0°F | 10.4°F | 1.43 in |
| February | 33.3°F | 14.6°F | 1.87 in | 32.8°F | 14.3°F | 1.74 in |
| March | 44.1°F | 23.9°F | 2.07 in | 45.5°F | 25.4°F | 2.33 in |
| April | 56.0°F | 34.5°F | 4.10 in | 58.8°F | 35.8°F | 3.85 in |
| May | 68.1°F | 45.5°F | 4.28 in | 70.2°F | 47.1°F | 4.29 in |
| June | 77.7°F | 55.9°F | 5.63 in | 79.8°F | 57.7°F | 5.82 in |
| July | 82.8°F | 60.5°F | 3.75 in | 83.3°F | 61.2°F | 4.65 in |
| August | 81.1°F | 59.2°F | 3.79 in | 81.4°F | 58.8°F | 4.02 in |
| September | 74.2°F | 51.3°F | 3.77 in | 74.6°F | 50.0°F | 3.85 in |
| October | 61.5°F | 39.7°F | 3.01 in | 62.1°F | 38.9°F | 3.04 in |
| November | 46.5°F | 28.5°F | 2.28 in | 46.6°F | 27.8°F | 2.44 in |
| December | 35.0°F | 18.3°F | 2.09 in | 33.6°F | 16.9°F | 1.89 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 →