Climate twins of Otterville, IL
These are the US cities whose 12-month climate pattern most closely matches Otterville'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: Otterville vs its climate twin
Top match: Edwardsport, IN
| Month | Otterville | Edwardsport | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 36.3°F | 19.2°F | 2.45 in | 37.2°F | 22.4°F | 3.22 in |
| February | 41.5°F | 22.8°F | 2.31 in | 41.9°F | 25.0°F | 2.46 in |
| March | 52.5°F | 31.8°F | 3.17 in | 52.7°F | 33.6°F | 3.36 in |
| April | 64.8°F | 42.1°F | 4.55 in | 64.7°F | 43.9°F | 4.73 in |
| May | 74.3°F | 53.8°F | 5.29 in | 74.4°F | 54.8°F | 5.45 in |
| June | 82.9°F | 62.8°F | 4.12 in | 82.9°F | 63.7°F | 4.44 in |
| July | 86.5°F | 66.0°F | 3.56 in | 85.7°F | 66.7°F | 4.15 in |
| August | 85.2°F | 63.3°F | 3.72 in | 84.9°F | 64.6°F | 3.46 in |
| September | 79.2°F | 54.7°F | 3.44 in | 79.0°F | 57.2°F | 3.44 in |
| October | 67.2°F | 43.3°F | 3.29 in | 67.2°F | 45.6°F | 3.64 in |
| November | 52.8°F | 33.0°F | 3.67 in | 53.2°F | 35.4°F | 3.93 in |
| December | 41.2°F | 24.2°F | 2.65 in | 41.7°F | 27.1°F | 3.14 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 →