Climate twins of Stanley, IA
These are the US cities whose 12-month climate pattern most closely matches Stanley'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: Stanley vs its climate twin
Top match: Portage, WI
| Month | Stanley | Portage | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 24.8°F | 6.8°F | 1.19 in | 26.1°F | 9.9°F | 1.44 in |
| February | 29.3°F | 9.3°F | 1.18 in | 30.6°F | 13.2°F | 1.41 in |
| March | 43.1°F | 23.1°F | 2.02 in | 42.4°F | 24.0°F | 2.18 in |
| April | 57.7°F | 33.5°F | 3.96 in | 55.7°F | 35.8°F | 4.15 in |
| May | 69.5°F | 46.4°F | 4.84 in | 68.2°F | 47.8°F | 4.58 in |
| June | 79.0°F | 57.3°F | 5.76 in | 77.9°F | 57.9°F | 5.61 in |
| July | 81.7°F | 59.3°F | 5.25 in | 81.6°F | 61.6°F | 4.51 in |
| August | 79.5°F | 56.6°F | 3.98 in | 79.9°F | 59.4°F | 4.12 in |
| September | 74.0°F | 47.8°F | 3.71 in | 72.6°F | 50.7°F | 3.56 in |
| October | 60.8°F | 36.2°F | 3.10 in | 59.3°F | 39.0°F | 2.86 in |
| November | 44.3°F | 24.3°F | 2.07 in | 44.2°F | 28.3°F | 2.22 in |
| December | 30.9°F | 14.0°F | 1.59 in | 31.8°F | 17.1°F | 1.68 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 →