Climate twins of Ashmore, IL
These are the US cities whose 12-month climate pattern most closely matches Ashmore'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: Ashmore vs its climate twin
Top match: Lake St. Louis, MO
| Month | Ashmore | Lake St. Louis | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 37.9°F | 20.7°F | 2.54 in | 39.3°F | 21.2°F | 2.61 in |
| February | 43.3°F | 24.6°F | 2.69 in | 44.8°F | 24.4°F | 2.43 in |
| March | 54.3°F | 33.6°F | 3.11 in | 55.2°F | 33.3°F | 3.74 in |
| April | 67.3°F | 44.1°F | 5.09 in | 67.0°F | 43.8°F | 4.70 in |
| May | 77.1°F | 54.1°F | 4.52 in | 75.7°F | 54.2°F | 5.09 in |
| June | 85.5°F | 63.0°F | 4.84 in | 83.7°F | 63.3°F | 4.72 in |
| July | 88.1°F | 66.2°F | 4.40 in | 87.5°F | 67.3°F | 3.92 in |
| August | 86.6°F | 64.4°F | 2.94 in | 86.7°F | 65.4°F | 3.58 in |
| September | 81.2°F | 56.8°F | 3.15 in | 79.8°F | 57.0°F | 3.50 in |
| October | 68.9°F | 45.6°F | 3.94 in | 68.3°F | 45.6°F | 3.37 in |
| November | 54.4°F | 34.9°F | 3.74 in | 55.4°F | 34.9°F | 3.69 in |
| December | 42.4°F | 26.1°F | 2.79 in | 44.0°F | 25.9°F | 3.07 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 →