Climate twins of Sibley, IA
These are the US cities whose 12-month climate pattern most closely matches Sibley'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: Sibley vs its climate twin
Top match: Elk Mound, WI
| Month | Sibley | Elk Mound | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 23.1°F | 4.7°F | 0.74 in | 23.4°F | 5.8°F | 1.03 in |
| February | 28.0°F | 8.8°F | 0.84 in | 28.4°F | 9.1°F | 1.10 in |
| March | 41.0°F | 20.6°F | 1.59 in | 41.3°F | 21.2°F | 1.97 in |
| April | 56.1°F | 32.5°F | 3.25 in | 56.5°F | 33.2°F | 3.08 in |
| May | 68.8°F | 45.5°F | 4.06 in | 69.6°F | 45.1°F | 3.91 in |
| June | 78.9°F | 56.7°F | 4.88 in | 78.7°F | 55.5°F | 4.83 in |
| July | 82.1°F | 60.3°F | 3.30 in | 82.8°F | 59.8°F | 3.61 in |
| August | 79.9°F | 57.9°F | 3.58 in | 80.4°F | 57.7°F | 4.18 in |
| September | 73.8°F | 49.1°F | 3.25 in | 72.3°F | 49.3°F | 3.65 in |
| October | 59.8°F | 35.7°F | 2.31 in | 58.0°F | 36.9°F | 2.49 in |
| November | 42.6°F | 22.3°F | 1.38 in | 42.0°F | 24.7°F | 1.79 in |
| December | 28.3°F | 10.7°F | 1.05 in | 28.7°F | 12.6°F | 1.35 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 →