Climate twins of Herman, MN
These are the US cities whose 12-month climate pattern most closely matches Herman'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: Herman vs its climate twin
Top match: Lastrup, MN
| Month | Herman | Lastrup | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 20.1°F | 2.7°F | 0.78 in | 23.9°F | 3.5°F | 0.76 in |
| February | 24.9°F | 6.0°F | 0.71 in | 28.9°F | 7.1°F | 0.66 in |
| March | 38.2°F | 19.7°F | 1.18 in | 42.5°F | 20.3°F | 1.27 in |
| April | 54.5°F | 33.2°F | 2.30 in | 57.8°F | 32.8°F | 2.26 in |
| May | 68.5°F | 46.9°F | 2.80 in | 71.1°F | 45.2°F | 3.34 in |
| June | 78.2°F | 58.6°F | 4.22 in | 80.2°F | 55.1°F | 4.34 in |
| July | 82.4°F | 62.4°F | 3.52 in | 84.7°F | 60.2°F | 3.73 in |
| August | 80.6°F | 59.7°F | 2.72 in | 82.4°F | 57.7°F | 3.25 in |
| September | 72.9°F | 50.2°F | 2.90 in | 74.5°F | 49.6°F | 2.96 in |
| October | 57.7°F | 36.7°F | 2.27 in | 58.9°F | 37.4°F | 2.45 in |
| November | 40.5°F | 22.8°F | 1.08 in | 41.7°F | 23.2°F | 1.26 in |
| December | 25.6°F | 9.9°F | 0.82 in | 27.9°F | 10.4°F | 0.90 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 →