Climate twins of Salem, SC
These are the US cities whose 12-month climate pattern most closely matches Salem'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: Salem vs its climate twin
Top match: Tracy City, TN
| Month | Salem | Tracy City | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 48.3°F | 25.6°F | 8.08 in | 44.3°F | 26.4°F | 5.68 in |
| February | 51.6°F | 27.7°F | 6.24 in | 48.7°F | 29.8°F | 5.77 in |
| March | 57.7°F | 32.2°F | 7.30 in | 57.3°F | 36.8°F | 6.31 in |
| April | 66.2°F | 39.1°F | 6.66 in | 66.8°F | 45.2°F | 6.26 in |
| May | 71.9°F | 47.4°F | 6.55 in | 73.8°F | 53.8°F | 5.31 in |
| June | 77.8°F | 55.5°F | 7.78 in | 80.3°F | 61.3°F | 5.76 in |
| July | 80.4°F | 59.3°F | 7.09 in | 83.2°F | 64.8°F | 6.40 in |
| August | 79.8°F | 58.8°F | 8.87 in | 82.7°F | 64.0°F | 4.75 in |
| September | 74.8°F | 52.6°F | 7.64 in | 78.0°F | 58.2°F | 4.59 in |
| October | 66.9°F | 41.1°F | 6.40 in | 67.8°F | 46.7°F | 4.09 in |
| November | 58.7°F | 32.2°F | 7.05 in | 56.7°F | 36.8°F | 5.22 in |
| December | 50.3°F | 27.8°F | 7.68 in | 47.9°F | 30.3°F | 6.82 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 →