Climate twins of Siren, WI
These are the US cities whose 12-month climate pattern most closely matches Siren'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: Siren vs its climate twin
Top match: Hewitt, WI
| Month | Siren | Hewitt | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 22.2°F | 1.2°F | 0.86 in | 22.7°F | 5.9°F | 1.08 in |
| February | 28.2°F | 5.0°F | 0.90 in | 27.0°F | 8.6°F | 0.96 in |
| March | 41.1°F | 17.8°F | 1.58 in | 39.5°F | 20.3°F | 1.71 in |
| April | 55.5°F | 30.7°F | 2.85 in | 53.4°F | 32.6°F | 3.08 in |
| May | 69.1°F | 43.5°F | 4.06 in | 66.2°F | 45.2°F | 4.13 in |
| June | 78.1°F | 53.4°F | 4.45 in | 75.7°F | 55.3°F | 4.79 in |
| July | 82.4°F | 58.0°F | 4.60 in | 80.0°F | 59.3°F | 3.83 in |
| August | 80.4°F | 55.8°F | 4.45 in | 77.8°F | 57.2°F | 4.01 in |
| September | 72.3°F | 47.3°F | 3.67 in | 70.1°F | 48.6°F | 3.91 in |
| October | 57.5°F | 35.1°F | 3.17 in | 56.7°F | 36.7°F | 3.03 in |
| November | 40.7°F | 22.3°F | 1.81 in | 40.8°F | 24.9°F | 1.93 in |
| December | 27.2°F | 9.5°F | 1.37 in | 27.7°F | 12.9°F | 1.42 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 →