Climate twins of Weldon Spring, MO
These are the US cities whose 12-month climate pattern most closely matches Weldon Spring'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: Weldon Spring vs its climate twin
Top match: Keenes, IL
| Month | Weldon Spring | Keenes | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 39.3°F | 21.2°F | 2.61 in | 38.5°F | 21.7°F | 2.60 in |
| February | 44.8°F | 24.4°F | 2.43 in | 43.6°F | 25.0°F | 2.62 in |
| March | 55.2°F | 33.3°F | 3.74 in | 53.6°F | 33.8°F | 4.00 in |
| April | 67.0°F | 43.8°F | 4.70 in | 64.9°F | 44.1°F | 4.96 in |
| May | 75.7°F | 54.2°F | 5.09 in | 73.8°F | 55.0°F | 5.06 in |
| June | 83.7°F | 63.3°F | 4.72 in | 82.4°F | 63.7°F | 4.84 in |
| July | 87.5°F | 67.3°F | 3.92 in | 85.7°F | 67.3°F | 3.78 in |
| August | 86.7°F | 65.4°F | 3.58 in | 84.8°F | 64.8°F | 3.33 in |
| September | 79.8°F | 57.0°F | 3.50 in | 78.6°F | 56.7°F | 3.37 in |
| October | 68.3°F | 45.6°F | 3.37 in | 67.5°F | 44.7°F | 3.53 in |
| November | 55.4°F | 34.9°F | 3.69 in | 53.7°F | 34.2°F | 3.99 in |
| December | 44.0°F | 25.9°F | 3.07 in | 42.9°F | 26.1°F | 2.89 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 →