Climate twins of St. John, KS
These are the US cities whose 12-month climate pattern most closely matches St. John'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: St. John vs its climate twin
Top match: Ogden, KS
| Month | St. John | Ogden | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 44.3°F | 20.5°F | 0.82 in | 41.0°F | 17.8°F | 0.65 in |
| February | 48.5°F | 23.3°F | 1.05 in | 46.1°F | 21.8°F | 0.96 in |
| March | 59.3°F | 32.4°F | 1.96 in | 57.6°F | 31.8°F | 1.83 in |
| April | 68.8°F | 41.8°F | 2.49 in | 67.4°F | 41.8°F | 3.13 in |
| May | 78.3°F | 52.7°F | 4.64 in | 76.8°F | 52.9°F | 4.65 in |
| June | 88.8°F | 63.2°F | 3.98 in | 86.6°F | 63.4°F | 4.83 in |
| July | 93.5°F | 67.8°F | 4.00 in | 91.5°F | 68.0°F | 4.01 in |
| August | 91.3°F | 65.9°F | 3.35 in | 89.6°F | 65.3°F | 4.64 in |
| September | 83.7°F | 57.6°F | 1.94 in | 81.6°F | 56.0°F | 2.69 in |
| October | 71.2°F | 44.3°F | 2.25 in | 69.3°F | 42.9°F | 2.18 in |
| November | 56.9°F | 31.8°F | 1.21 in | 55.4°F | 30.4°F | 1.54 in |
| December | 45.4°F | 23.0°F | 1.05 in | 43.9°F | 20.7°F | 1.06 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 →