Climate twins of Harrold, SD
These are the US cities whose 12-month climate pattern most closely matches Harrold'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: Harrold vs its climate twin
Top match: Lemmon, SD
| Month | Harrold | Lemmon | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 27.1°F | 3.3°F | 0.49 in | 28.8°F | 8.9°F | 0.26 in |
| February | 32.3°F | 7.5°F | 0.44 in | 32.6°F | 12.0°F | 0.48 in |
| March | 44.4°F | 18.6°F | 0.82 in | 45.0°F | 21.2°F | 0.79 in |
| April | 57.6°F | 28.7°F | 1.93 in | 57.7°F | 31.7°F | 1.71 in |
| May | 68.9°F | 41.1°F | 2.73 in | 69.1°F | 42.9°F | 2.84 in |
| June | 79.2°F | 52.6°F | 3.30 in | 78.7°F | 52.8°F | 3.03 in |
| July | 86.9°F | 58.3°F | 2.68 in | 86.7°F | 58.6°F | 2.75 in |
| August | 85.5°F | 55.9°F | 1.93 in | 86.0°F | 56.6°F | 2.11 in |
| September | 77.5°F | 45.6°F | 1.80 in | 76.8°F | 47.3°F | 1.48 in |
| October | 61.0°F | 30.9°F | 1.44 in | 59.8°F | 34.6°F | 1.54 in |
| November | 44.4°F | 17.9°F | 0.54 in | 43.5°F | 21.9°F | 0.60 in |
| December | 31.0°F | 7.2°F | 0.54 in | 31.9°F | 12.3°F | 0.41 in |
Cities that consider Harrold their climate twin
These US cities have Harrold in their top 3 most-similar list — meaning if you were to move from any of these places, Harrold would feel familiar.
- Lemmon, SD (ranks Harrold #1)
- Hazen, ND (ranks Harrold #1)
- Beulah, ND (ranks Harrold #1)
- Bison, SD (ranks Harrold #1)
- McClusky, ND (ranks Harrold #3)
- Goodrich, ND (ranks Harrold #3)
- Lincoln, ND (ranks Harrold #1)
- Faith, SD (ranks Harrold #3)
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 →