Climate twins of Galveston, IN
These are the US cities whose 12-month climate pattern most closely matches Galveston'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: Galveston vs its climate twin
Top match: Port Jefferson, OH
| Month | Galveston | Port Jefferson | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 31.9°F | 16.5°F | 2.52 in | 34.4°F | 17.9°F | 2.89 in |
| February | 35.9°F | 19.8°F | 2.25 in | 38.5°F | 20.1°F | 2.31 in |
| March | 47.3°F | 28.5°F | 2.63 in | 48.9°F | 28.0°F | 3.17 in |
| April | 60.4°F | 38.4°F | 3.64 in | 62.3°F | 37.8°F | 4.08 in |
| May | 71.8°F | 50.3°F | 3.94 in | 72.8°F | 49.1°F | 4.08 in |
| June | 80.3°F | 59.7°F | 5.19 in | 81.2°F | 58.9°F | 4.70 in |
| July | 82.6°F | 62.0°F | 5.14 in | 84.3°F | 62.1°F | 4.57 in |
| August | 81.2°F | 59.9°F | 3.99 in | 83.0°F | 59.8°F | 3.76 in |
| September | 76.5°F | 52.2°F | 3.37 in | 77.9°F | 52.5°F | 3.11 in |
| October | 64.2°F | 41.8°F | 3.08 in | 65.2°F | 41.5°F | 2.89 in |
| November | 49.1°F | 31.7°F | 3.08 in | 51.1°F | 31.5°F | 3.17 in |
| December | 36.9°F | 22.8°F | 2.29 in | 39.6°F | 23.9°F | 2.92 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 →