Climate twins of Williamsburg, IA
These are the US cities whose 12-month climate pattern most closely matches Williamsburg'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: Williamsburg vs its climate twin
Top match: Cromwell, IA
| Month | Williamsburg | Cromwell | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 28.4°F | 10.4°F | 1.16 in | 30.5°F | 10.6°F | 1.04 in |
| February | 33.0°F | 14.3°F | 1.46 in | 35.1°F | 13.8°F | 1.46 in |
| March | 46.5°F | 25.8°F | 2.19 in | 48.7°F | 25.5°F | 2.53 in |
| April | 60.4°F | 36.4°F | 3.92 in | 61.2°F | 36.1°F | 3.74 in |
| May | 71.3°F | 48.9°F | 4.85 in | 71.3°F | 48.8°F | 5.15 in |
| June | 80.5°F | 59.4°F | 4.80 in | 80.9°F | 59.4°F | 5.17 in |
| July | 84.0°F | 62.6°F | 4.32 in | 84.7°F | 63.2°F | 4.46 in |
| August | 82.1°F | 59.7°F | 4.47 in | 83.0°F | 60.7°F | 4.23 in |
| September | 76.3°F | 50.7°F | 3.80 in | 76.4°F | 51.6°F | 3.70 in |
| October | 63.0°F | 38.6°F | 2.83 in | 64.1°F | 39.3°F | 2.79 in |
| November | 47.3°F | 26.9°F | 2.20 in | 48.4°F | 26.2°F | 2.14 in |
| December | 34.2°F | 16.3°F | 1.69 in | 35.7°F | 16.0°F | 1.48 in |
Cities that consider Williamsburg their climate twin
These US cities have Williamsburg in their top 3 most-similar list — meaning if you were to move from any of these places, Williamsburg would feel familiar.
- Morrison, IL (ranks Williamsburg #1)
- Marengo, IL (ranks Williamsburg #1)
- Union, IL (ranks Williamsburg #1)
- Winterset, IA (ranks Williamsburg #1)
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 →