Climate twins of Rockton, IL
These are the US cities whose 12-month climate pattern most closely matches Rockton'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: Rockton vs its climate twin
Top match: Plover, WI
| Month | Rockton | Plover | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 25.1°F | 10.7°F | 1.60 in | 23.6°F | 7.1°F | 1.21 in |
| February | 29.4°F | 13.9°F | 1.52 in | 28.1°F | 9.3°F | 1.11 in |
| March | 41.5°F | 23.8°F | 2.13 in | 40.0°F | 20.8°F | 1.80 in |
| April | 54.8°F | 34.4°F | 3.72 in | 53.6°F | 32.7°F | 3.37 in |
| May | 66.5°F | 45.7°F | 4.34 in | 66.5°F | 45.2°F | 4.08 in |
| June | 76.1°F | 55.8°F | 5.64 in | 75.8°F | 55.6°F | 5.00 in |
| July | 79.6°F | 59.8°F | 3.36 in | 79.7°F | 59.8°F | 3.82 in |
| August | 78.0°F | 58.1°F | 4.14 in | 77.8°F | 57.9°F | 3.79 in |
| September | 71.3°F | 50.3°F | 3.83 in | 70.2°F | 49.5°F | 3.62 in |
| October | 58.3°F | 38.7°F | 2.77 in | 56.9°F | 37.3°F | 2.73 in |
| November | 43.2°F | 27.4°F | 2.40 in | 41.7°F | 25.6°F | 1.90 in |
| December | 30.5°F | 17.0°F | 1.96 in | 29.0°F | 14.2°F | 1.54 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 →