Climate twins of Smithfield, IL
These are the US cities whose 12-month climate pattern most closely matches Smithfield'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: Smithfield vs its climate twin
Top match: Gibbs, MO
| Month | Smithfield | Gibbs | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 32.7°F | 16.0°F | 1.91 in | 34.4°F | 17.2°F | 1.60 in |
| February | 37.9°F | 19.0°F | 1.92 in | 39.5°F | 20.6°F | 1.77 in |
| March | 50.5°F | 28.8°F | 2.68 in | 51.8°F | 30.6°F | 2.62 in |
| April | 63.6°F | 39.8°F | 3.79 in | 63.3°F | 41.0°F | 3.93 in |
| May | 73.8°F | 52.0°F | 5.05 in | 72.4°F | 51.7°F | 5.02 in |
| June | 82.4°F | 61.6°F | 4.82 in | 81.9°F | 61.3°F | 5.07 in |
| July | 85.7°F | 64.4°F | 4.10 in | 85.8°F | 65.0°F | 4.35 in |
| August | 83.5°F | 62.5°F | 3.21 in | 84.4°F | 62.8°F | 3.94 in |
| September | 78.0°F | 54.9°F | 3.77 in | 77.1°F | 53.9°F | 3.65 in |
| October | 66.0°F | 43.0°F | 2.99 in | 64.5°F | 43.2°F | 3.24 in |
| November | 50.2°F | 30.8°F | 2.42 in | 50.9°F | 31.2°F | 2.41 in |
| December | 38.1°F | 21.7°F | 1.80 in | 39.1°F | 22.1°F | 1.67 in |
Cities that consider Smithfield their climate twin
These US cities have Smithfield in their top 3 most-similar list — meaning if you were to move from any of these places, Smithfield would feel familiar.
- Brashear, MO (ranks Smithfield #3)
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 →