Climate twins of Lowell, IN
These are the US cities whose 12-month climate pattern most closely matches Lowell'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: Lowell vs its climate twin
Top match: Polo, IL
| Month | Lowell | Polo | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 31.5°F | 15.0°F | 2.33 in | 30.1°F | 13.3°F | 1.94 in |
| February | 35.8°F | 17.7°F | 1.91 in | 34.7°F | 16.8°F | 1.95 in |
| March | 47.4°F | 27.3°F | 2.34 in | 47.8°F | 27.5°F | 2.79 in |
| April | 60.3°F | 37.7°F | 3.68 in | 61.1°F | 37.7°F | 3.85 in |
| May | 71.3°F | 48.9°F | 4.24 in | 73.0°F | 49.3°F | 4.72 in |
| June | 80.7°F | 59.1°F | 5.11 in | 82.0°F | 59.0°F | 5.07 in |
| July | 83.5°F | 62.5°F | 4.31 in | 84.5°F | 61.6°F | 4.40 in |
| August | 81.8°F | 60.4°F | 4.27 in | 82.8°F | 59.2°F | 3.71 in |
| September | 76.8°F | 52.5°F | 3.27 in | 76.8°F | 51.2°F | 3.59 in |
| October | 63.9°F | 41.0°F | 3.56 in | 63.9°F | 40.3°F | 3.21 in |
| November | 49.1°F | 30.2°F | 2.62 in | 48.2°F | 29.3°F | 2.65 in |
| December | 36.9°F | 20.9°F | 2.24 in | 35.1°F | 19.2°F | 2.14 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 →