Climate twins of Chapman, KS
These are the US cities whose 12-month climate pattern most closely matches Chapman'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: Chapman vs its climate twin
Top match: Iatan, MO
| Month | Chapman | Iatan | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 40.2°F | 16.5°F | 0.74 in | 36.2°F | 18.4°F | 0.93 in |
| February | 46.1°F | 20.7°F | 1.05 in | 41.6°F | 22.8°F | 1.20 in |
| March | 56.8°F | 30.4°F | 2.17 in | 54.0°F | 32.4°F | 1.92 in |
| April | 67.3°F | 41.2°F | 3.09 in | 65.0°F | 42.9°F | 3.42 in |
| May | 76.0°F | 53.2°F | 5.44 in | 74.4°F | 55.4°F | 5.32 in |
| June | 86.2°F | 63.2°F | 4.46 in | 83.7°F | 65.2°F | 4.87 in |
| July | 89.5°F | 67.3°F | 4.57 in | 87.6°F | 69.3°F | 5.17 in |
| August | 88.7°F | 65.0°F | 3.68 in | 86.4°F | 66.5°F | 3.75 in |
| September | 81.7°F | 55.6°F | 3.08 in | 78.9°F | 58.1°F | 3.48 in |
| October | 69.6°F | 42.9°F | 2.62 in | 66.6°F | 46.2°F | 3.10 in |
| November | 55.7°F | 30.4°F | 1.28 in | 51.9°F | 33.3°F | 1.81 in |
| December | 42.8°F | 20.2°F | 1.29 in | 40.1°F | 23.4°F | 1.41 in |
Cities that consider Chapman their climate twin
These US cities have Chapman in their top 3 most-similar list — meaning if you were to move from any of these places, Chapman would feel familiar.
- De Kalb, MO (ranks Chapman #1)
- Iatan, MO (ranks Chapman #1)
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 →