Climate twins of St. Martinville, LA
These are the US cities whose 12-month climate pattern most closely matches St. Martinville'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: St. Martinville vs its climate twin
Top match: Old River-Winfree, TX
| Month | St. Martinville | Old River-Winfree | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 61.6°F | 42.5°F | 5.63 in | 62.9°F | 41.4°F | 4.85 in |
| February | 65.4°F | 46.7°F | 4.38 in | 66.4°F | 45.3°F | 3.78 in |
| March | 71.5°F | 52.0°F | 3.93 in | 72.1°F | 52.0°F | 3.94 in |
| April | 77.3°F | 57.3°F | 5.28 in | 77.5°F | 58.5°F | 4.51 in |
| May | 84.1°F | 65.1°F | 5.45 in | 84.2°F | 66.7°F | 6.01 in |
| June | 88.5°F | 70.8°F | 8.06 in | 89.2°F | 72.7°F | 7.08 in |
| July | 89.7°F | 72.8°F | 6.56 in | 91.5°F | 74.6°F | 5.49 in |
| August | 90.1°F | 72.6°F | 6.92 in | 92.3°F | 74.3°F | 6.82 in |
| September | 86.8°F | 68.1°F | 5.85 in | 88.5°F | 69.0°F | 6.41 in |
| October | 79.8°F | 57.9°F | 5.10 in | 81.6°F | 59.6°F | 6.13 in |
| November | 70.4°F | 48.4°F | 4.46 in | 71.4°F | 50.1°F | 4.94 in |
| December | 63.8°F | 44.2°F | 5.17 in | 64.5°F | 43.6°F | 4.77 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 →