Climate twins of Hamilton, WA
These are the US cities whose 12-month climate pattern most closely matches Hamilton'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: Hamilton vs its climate twin
Top match: Longview, WA
| Month | Hamilton | Longview | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 46.0°F | 34.7°F | 6.18 in | 47.7°F | 35.1°F | 6.53 in |
| February | 48.7°F | 35.0°F | 4.11 in | 52.0°F | 34.7°F | 4.81 in |
| March | 53.0°F | 37.8°F | 4.76 in | 56.9°F | 37.5°F | 4.91 in |
| April | 58.3°F | 41.3°F | 4.17 in | 62.1°F | 40.4°F | 4.08 in |
| May | 64.7°F | 46.8°F | 3.46 in | 68.8°F | 45.3°F | 3.11 in |
| June | 68.8°F | 50.6°F | 2.60 in | 72.9°F | 49.5°F | 2.03 in |
| July | 74.5°F | 53.1°F | 1.34 in | 79.3°F | 53.4°F | 0.63 in |
| August | 75.2°F | 52.9°F | 1.60 in | 80.4°F | 53.3°F | 0.97 in |
| September | 69.5°F | 49.3°F | 2.86 in | 75.7°F | 49.6°F | 2.29 in |
| October | 59.6°F | 43.2°F | 4.98 in | 64.0°F | 44.1°F | 4.38 in |
| November | 50.4°F | 38.6°F | 7.02 in | 53.0°F | 38.6°F | 7.24 in |
| December | 44.8°F | 34.2°F | 5.45 in | 46.6°F | 34.8°F | 7.14 in |
Cities that consider Hamilton their climate twin
These US cities have Hamilton in their top 3 most-similar list — meaning if you were to move from any of these places, Hamilton would feel familiar.
- Washougal, WA (ranks Hamilton #3)
- Troutdale, OR (ranks Hamilton #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 →