Climate twins of Windsor, IL
These are the US cities whose 12-month climate pattern most closely matches Windsor'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: Windsor vs its climate twin
Top match: Pearl, IL
| Month | Windsor | Pearl | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 34.6°F | 19.2°F | 2.64 in | 35.4°F | 18.4°F | 2.06 in |
| February | 39.6°F | 22.8°F | 1.97 in | 40.5°F | 21.9°F | 2.05 in |
| March | 50.9°F | 31.9°F | 3.11 in | 51.7°F | 31.5°F | 2.91 in |
| April | 63.9°F | 41.9°F | 4.51 in | 64.1°F | 41.9°F | 4.41 in |
| May | 73.7°F | 53.1°F | 4.57 in | 73.9°F | 53.2°F | 4.81 in |
| June | 82.1°F | 61.6°F | 4.76 in | 82.5°F | 62.3°F | 4.67 in |
| July | 85.0°F | 64.7°F | 3.91 in | 85.6°F | 65.7°F | 3.87 in |
| August | 83.7°F | 62.5°F | 2.95 in | 84.4°F | 63.6°F | 3.35 in |
| September | 78.4°F | 55.2°F | 2.97 in | 78.9°F | 55.1°F | 2.99 in |
| October | 66.3°F | 44.3°F | 3.60 in | 66.8°F | 43.4°F | 3.02 in |
| November | 51.0°F | 33.2°F | 3.75 in | 52.3°F | 32.6°F | 3.11 in |
| December | 39.2°F | 24.7°F | 2.45 in | 40.5°F | 23.7°F | 2.33 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 →