Climate twins of Decatur, NE
These are the US cities whose 12-month climate pattern most closely matches Decatur'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: Decatur vs its climate twin
Top match: Jeffers, MN
| Month | Decatur | Jeffers | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 30.2°F | 8.5°F | 0.54 in | 25.3°F | 8.0°F | 0.89 in |
| February | 35.6°F | 12.5°F | 0.78 in | 30.3°F | 11.7°F | 0.83 in |
| March | 49.8°F | 23.9°F | 1.57 in | 42.7°F | 24.0°F | 1.76 in |
| April | 62.7°F | 34.7°F | 3.28 in | 58.0°F | 35.6°F | 3.21 in |
| May | 73.5°F | 47.9°F | 4.58 in | 70.5°F | 48.3°F | 4.48 in |
| June | 83.1°F | 59.0°F | 4.18 in | 80.5°F | 59.4°F | 4.73 in |
| July | 86.0°F | 62.6°F | 3.39 in | 84.3°F | 63.4°F | 3.93 in |
| August | 83.7°F | 59.4°F | 4.07 in | 81.4°F | 60.7°F | 3.69 in |
| September | 78.1°F | 50.3°F | 2.97 in | 75.0°F | 52.0°F | 3.20 in |
| October | 65.4°F | 37.3°F | 2.31 in | 60.7°F | 38.6°F | 2.45 in |
| November | 48.6°F | 23.7°F | 1.50 in | 43.6°F | 25.3°F | 1.50 in |
| December | 34.4°F | 13.5°F | 0.69 in | 30.4°F | 13.8°F | 1.07 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 →