Climate twins of Thomasboro, IL
These are the US cities whose 12-month climate pattern most closely matches Thomasboro'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: Thomasboro vs its climate twin
Top match: Ipava, IL
| Month | Thomasboro | Ipava | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 34.4°F | 15.8°F | 2.54 in | 33.5°F | 16.4°F | 2.20 in |
| February | 39.6°F | 19.6°F | 2.01 in | 38.8°F | 20.4°F | 2.18 in |
| March | 51.4°F | 29.3°F | 2.58 in | 51.2°F | 30.2°F | 2.72 in |
| April | 64.3°F | 39.6°F | 3.98 in | 63.8°F | 40.9°F | 4.22 in |
| May | 75.4°F | 51.3°F | 4.33 in | 74.5°F | 52.8°F | 5.08 in |
| June | 84.9°F | 61.7°F | 4.61 in | 84.6°F | 61.6°F | 4.73 in |
| July | 87.5°F | 64.1°F | 4.44 in | 88.1°F | 65.1°F | 4.18 in |
| August | 85.9°F | 61.6°F | 3.86 in | 86.0°F | 62.9°F | 4.02 in |
| September | 80.7°F | 54.3°F | 3.28 in | 80.4°F | 53.5°F | 3.26 in |
| October | 67.3°F | 42.1°F | 3.32 in | 67.8°F | 42.0°F | 3.37 in |
| November | 52.3°F | 31.4°F | 3.19 in | 52.4°F | 31.8°F | 2.73 in |
| December | 39.8°F | 22.1°F | 2.21 in | 39.1°F | 21.8°F | 2.35 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 →