Climate twins of Shiloh, IL
These are the US cities whose 12-month climate pattern most closely matches Shiloh'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: Shiloh vs its climate twin
Top match: Vienna, MO
| Month | Shiloh | Vienna | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 42.9°F | 24.3°F | 2.56 in | 43.6°F | 24.2°F | 2.47 in |
| February | 48.6°F | 28.0°F | 2.16 in | 48.8°F | 28.2°F | 2.24 in |
| March | 59.2°F | 36.3°F | 3.44 in | 59.3°F | 35.6°F | 3.57 in |
| April | 70.6°F | 46.0°F | 4.90 in | 70.1°F | 45.6°F | 4.67 in |
| May | 79.1°F | 56.3°F | 5.05 in | 78.2°F | 55.4°F | 4.87 in |
| June | 87.3°F | 64.5°F | 4.62 in | 86.1°F | 64.5°F | 5.17 in |
| July | 90.2°F | 67.8°F | 4.03 in | 90.7°F | 68.6°F | 4.61 in |
| August | 89.1°F | 65.3°F | 3.92 in | 89.9°F | 66.4°F | 3.81 in |
| September | 83.3°F | 56.9°F | 3.35 in | 82.2°F | 57.5°F | 4.01 in |
| October | 72.6°F | 46.7°F | 3.12 in | 71.2°F | 46.0°F | 2.92 in |
| November | 58.1°F | 36.9°F | 3.60 in | 58.2°F | 36.5°F | 3.57 in |
| December | 46.3°F | 28.3°F | 2.61 in | 47.8°F | 27.7°F | 3.02 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 →