Climate twins of Perry, IL
These are the US cities whose 12-month climate pattern most closely matches Perry'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: Perry vs its climate twin
Top match: Urbana, IL
| Month | Perry | Urbana | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 36.5°F | 17.8°F | 1.96 in | 33.5°F | 17.9°F | 2.31 in |
| February | 41.6°F | 21.7°F | 2.00 in | 38.4°F | 21.2°F | 2.18 in |
| March | 52.8°F | 31.3°F | 2.57 in | 50.4°F | 31.2°F | 2.77 in |
| April | 65.0°F | 41.8°F | 3.92 in | 63.1°F | 41.6°F | 3.94 in |
| May | 74.9°F | 53.3°F | 4.41 in | 73.8°F | 52.7°F | 4.78 in |
| June | 83.8°F | 62.2°F | 4.75 in | 82.7°F | 62.1°F | 4.58 in |
| July | 87.3°F | 65.1°F | 4.48 in | 85.2°F | 65.2°F | 4.49 in |
| August | 86.1°F | 62.7°F | 3.21 in | 84.0°F | 63.6°F | 3.54 in |
| September | 79.9°F | 54.2°F | 3.59 in | 78.8°F | 55.6°F | 3.37 in |
| October | 67.5°F | 42.7°F | 3.10 in | 65.8°F | 43.9°F | 3.35 in |
| November | 53.3°F | 32.8°F | 2.82 in | 50.7°F | 32.2°F | 3.21 in |
| December | 41.2°F | 23.2°F | 2.26 in | 38.5°F | 23.6°F | 2.40 in |
Cities that consider Perry their climate twin
These US cities have Perry in their top 3 most-similar list — meaning if you were to move from any of these places, Perry would feel familiar.
- Sadorus, IL (ranks Perry #1)
- Tolono, IL (ranks Perry #1)
- Lerna, IL (ranks Perry #1)
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 →