Climate twins of Holland, MO
These are the US cities whose 12-month climate pattern most closely matches Holland'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: Holland vs its climate twin
Top match: Pottsville, AR
| Month | Holland | Pottsville | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 47.5°F | 30.9°F | 3.22 in | 50.3°F | 29.7°F | 3.20 in |
| February | 52.2°F | 33.9°F | 3.26 in | 55.0°F | 33.0°F | 3.10 in |
| March | 61.2°F | 41.3°F | 4.39 in | 64.3°F | 40.8°F | 4.37 in |
| April | 71.9°F | 50.8°F | 4.88 in | 72.9°F | 49.1°F | 4.83 in |
| May | 80.9°F | 61.3°F | 4.85 in | 80.3°F | 59.0°F | 4.67 in |
| June | 88.8°F | 69.3°F | 3.25 in | 88.2°F | 67.6°F | 3.35 in |
| July | 90.9°F | 72.1°F | 3.04 in | 92.5°F | 71.1°F | 3.45 in |
| August | 90.1°F | 69.1°F | 2.70 in | 92.4°F | 69.9°F | 3.51 in |
| September | 84.4°F | 61.1°F | 2.40 in | 85.6°F | 61.7°F | 3.02 in |
| October | 73.7°F | 50.4°F | 3.04 in | 74.4°F | 49.8°F | 4.06 in |
| November | 60.6°F | 40.5°F | 3.83 in | 61.8°F | 39.2°F | 4.60 in |
| December | 50.4°F | 34.1°F | 4.17 in | 52.2°F | 32.0°F | 4.25 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 →