Climate twins of Grandin, MO
These are the US cities whose 12-month climate pattern most closely matches Grandin'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: Grandin vs its climate twin
Top match: New Burnside, IL
| Month | Grandin | New Burnside | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 45.9°F | 24.4°F | 3.41 in | 43.3°F | 25.5°F | 3.84 in |
| February | 50.7°F | 27.2°F | 3.81 in | 48.7°F | 29.0°F | 3.64 in |
| March | 60.1°F | 34.7°F | 4.66 in | 58.6°F | 36.9°F | 4.66 in |
| April | 70.4°F | 44.2°F | 5.59 in | 69.7°F | 46.2°F | 4.96 in |
| May | 77.9°F | 54.5°F | 5.69 in | 77.2°F | 55.6°F | 5.19 in |
| June | 86.0°F | 63.6°F | 3.52 in | 85.2°F | 62.9°F | 4.08 in |
| July | 89.6°F | 68.0°F | 4.63 in | 88.3°F | 66.5°F | 4.39 in |
| August | 88.9°F | 66.3°F | 3.77 in | 87.4°F | 64.8°F | 3.65 in |
| September | 82.4°F | 57.7°F | 3.70 in | 82.0°F | 57.5°F | 3.79 in |
| October | 71.5°F | 44.7°F | 3.86 in | 71.2°F | 46.3°F | 3.84 in |
| November | 58.6°F | 34.6°F | 4.87 in | 57.0°F | 37.2°F | 4.30 in |
| December | 48.0°F | 27.6°F | 4.15 in | 46.3°F | 29.2°F | 4.16 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 →