Climate twins of Helena, AL
These are the US cities whose 12-month climate pattern most closely matches Helena'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: Helena vs its climate twin
Top match: Noxapater, MS
| Month | Helena | Noxapater | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 54.8°F | 34.6°F | 5.10 in | 55.0°F | 33.9°F | 5.05 in |
| February | 60.1°F | 37.8°F | 5.58 in | 58.9°F | 37.1°F | 5.68 in |
| March | 68.0°F | 45.0°F | 5.34 in | 67.8°F | 43.6°F | 5.47 in |
| April | 76.1°F | 51.2°F | 5.18 in | 75.0°F | 50.9°F | 5.31 in |
| May | 83.4°F | 60.3°F | 4.15 in | 82.5°F | 60.4°F | 4.96 in |
| June | 89.6°F | 67.7°F | 4.23 in | 89.0°F | 67.4°F | 3.95 in |
| July | 92.2°F | 71.2°F | 4.76 in | 91.5°F | 70.6°F | 4.62 in |
| August | 92.0°F | 70.2°F | 4.42 in | 91.0°F | 70.0°F | 4.76 in |
| September | 87.2°F | 64.4°F | 3.93 in | 86.2°F | 64.1°F | 4.05 in |
| October | 76.3°F | 52.3°F | 3.62 in | 76.5°F | 52.6°F | 4.21 in |
| November | 64.9°F | 41.6°F | 4.66 in | 64.8°F | 42.2°F | 4.21 in |
| December | 57.0°F | 36.8°F | 4.65 in | 56.8°F | 36.2°F | 5.24 in |
Cities that consider Helena their climate twin
These US cities have Helena in their top 3 most-similar list — meaning if you were to move from any of these places, Helena would feel familiar.
- Louisville, MS (ranks Helena #2)
- Noxapater, MS (ranks Helena #2)
- Carthage, MS (ranks Helena #2)
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 →