Climate twins of Port Isabel, TX
These are the US cities whose 12-month climate pattern most closely matches Port Isabel'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: Port Isabel vs its climate twin
Top match: Fulton, TX
| Month | Port Isabel | Fulton | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 68.9°F | 51.7°F | 1.45 in | 65.3°F | 48.9°F | 1.72 in |
| February | 72.2°F | 56.3°F | 1.22 in | 68.7°F | 53.5°F | 1.05 in |
| March | 75.7°F | 61.2°F | 1.68 in | 74.1°F | 59.5°F | 1.95 in |
| April | 80.8°F | 67.0°F | 1.59 in | 79.7°F | 66.3°F | 1.46 in |
| May | 86.1°F | 72.7°F | 2.36 in | 85.1°F | 73.3°F | 3.20 in |
| June | 90.1°F | 76.3°F | 3.06 in | 90.1°F | 78.2°F | 3.90 in |
| July | 91.0°F | 77.0°F | 2.27 in | 91.2°F | 79.4°F | 2.51 in |
| August | 92.1°F | 77.0°F | 1.93 in | 92.4°F | 79.2°F | 1.50 in |
| September | 88.5°F | 73.9°F | 6.15 in | 89.3°F | 75.2°F | 4.18 in |
| October | 85.1°F | 69.0°F | 3.86 in | 83.6°F | 68.0°F | 2.82 in |
| November | 77.5°F | 60.7°F | 1.77 in | 74.6°F | 58.4°F | 2.43 in |
| December | 70.5°F | 53.6°F | 1.41 in | 67.5°F | 50.9°F | 1.66 in |
Cities that consider Port Isabel their climate twin
These US cities have Port Isabel in their top 3 most-similar list — meaning if you were to move from any of these places, Port Isabel would feel familiar.
- Key Colony Beach, FL (ranks Port Isabel #1)
- Marathon, FL (ranks Port Isabel #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 →