Climate twins of Waterloo, SC
These are the US cities whose 12-month climate pattern most closely matches Waterloo'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: Waterloo vs its climate twin
Top match: Chamblee, GA
| Month | Waterloo | Chamblee | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 53.8°F | 32.9°F | 4.15 in | 51.9°F | 32.7°F | 4.57 in |
| February | 57.1°F | 35.0°F | 3.84 in | 56.4°F | 35.9°F | 4.47 in |
| March | 65.1°F | 41.4°F | 4.45 in | 64.4°F | 42.2°F | 4.70 in |
| April | 73.4°F | 48.8°F | 3.33 in | 72.7°F | 49.2°F | 3.87 in |
| May | 80.5°F | 58.1°F | 3.51 in | 80.3°F | 58.5°F | 3.83 in |
| June | 86.9°F | 66.5°F | 4.62 in | 86.2°F | 66.3°F | 4.69 in |
| July | 90.4°F | 70.0°F | 3.77 in | 89.4°F | 69.9°F | 4.71 in |
| August | 88.5°F | 68.8°F | 4.28 in | 88.2°F | 69.1°F | 4.51 in |
| September | 83.5°F | 63.3°F | 4.14 in | 82.9°F | 62.8°F | 4.12 in |
| October | 74.3°F | 52.0°F | 3.14 in | 72.8°F | 50.9°F | 3.39 in |
| November | 64.0°F | 40.2°F | 3.70 in | 62.5°F | 40.6°F | 4.21 in |
| December | 56.2°F | 35.1°F | 4.60 in | 54.4°F | 35.5°F | 4.36 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 →