Climate twins of Paris, IL
These are the US cities whose 12-month climate pattern most closely matches Paris'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: Paris vs its climate twin
Top match: Country Club Heights, IN
| Month | Paris | Country Club Heights | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 34.0°F | 16.6°F | 2.81 in | 34.9°F | 20.7°F | 3.00 in |
| February | 38.8°F | 19.9°F | 2.33 in | 39.3°F | 23.8°F | 2.47 in |
| March | 49.9°F | 29.1°F | 3.00 in | 50.0°F | 32.3°F | 3.47 in |
| April | 62.8°F | 40.0°F | 4.94 in | 62.7°F | 42.2°F | 4.10 in |
| May | 73.0°F | 51.2°F | 4.17 in | 72.7°F | 52.8°F | 4.56 in |
| June | 81.6°F | 60.7°F | 5.02 in | 81.1°F | 61.8°F | 5.24 in |
| July | 84.4°F | 63.8°F | 3.83 in | 83.8°F | 64.8°F | 4.34 in |
| August | 83.0°F | 61.7°F | 3.57 in | 82.4°F | 63.2°F | 3.39 in |
| September | 77.7°F | 53.8°F | 2.94 in | 76.6°F | 55.9°F | 3.12 in |
| October | 65.5°F | 42.6°F | 3.62 in | 64.7°F | 45.0°F | 3.37 in |
| November | 50.8°F | 31.2°F | 3.66 in | 50.8°F | 34.8°F | 3.66 in |
| December | 38.8°F | 22.5°F | 2.85 in | 39.4°F | 26.0°F | 3.04 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 →