Climate twins of Nora Springs, IA
These are the US cities whose 12-month climate pattern most closely matches Nora Springs'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: Nora Springs vs its climate twin
Top match: Union Center, WI
| Month | Nora Springs | Union Center | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 24.0°F | 7.0°F | 0.89 in | 26.8°F | 7.1°F | 1.31 in |
| February | 28.6°F | 10.9°F | 1.07 in | 31.8°F | 10.4°F | 1.19 in |
| March | 41.3°F | 23.0°F | 1.95 in | 43.7°F | 22.5°F | 2.03 in |
| April | 56.4°F | 34.7°F | 3.91 in | 57.6°F | 34.3°F | 3.77 in |
| May | 68.6°F | 46.9°F | 5.58 in | 69.2°F | 45.6°F | 5.00 in |
| June | 78.7°F | 57.6°F | 5.70 in | 78.8°F | 55.9°F | 5.08 in |
| July | 81.9°F | 61.5°F | 4.63 in | 82.6°F | 60.1°F | 4.13 in |
| August | 79.6°F | 58.8°F | 3.71 in | 80.8°F | 58.1°F | 4.15 in |
| September | 73.5°F | 50.1°F | 3.24 in | 73.5°F | 49.0°F | 4.05 in |
| October | 60.1°F | 37.6°F | 2.55 in | 60.3°F | 37.3°F | 2.84 in |
| November | 43.3°F | 25.2°F | 1.79 in | 45.5°F | 26.7°F | 2.12 in |
| December | 29.9°F | 14.2°F | 1.25 in | 32.7°F | 14.6°F | 1.62 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 →