Climate twins of Green Bay, WI
These are the US cities whose 12-month climate pattern most closely matches Green Bay'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: Green Bay vs its climate twin
Top match: Stanley, WI
| Month | Green Bay | Stanley | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 24.5°F | 9.1°F | 1.32 in | 22.3°F | 3.3°F | 0.91 in |
| February | 28.9°F | 10.8°F | 1.10 in | 27.3°F | 6.7°F | 1.04 in |
| March | 39.9°F | 21.3°F | 1.87 in | 39.8°F | 19.5°F | 1.66 in |
| April | 53.6°F | 32.9°F | 3.13 in | 54.3°F | 32.4°F | 2.99 in |
| May | 66.6°F | 44.3°F | 3.57 in | 67.0°F | 44.9°F | 3.74 in |
| June | 75.4°F | 54.7°F | 4.22 in | 76.4°F | 54.9°F | 4.30 in |
| July | 79.8°F | 58.9°F | 3.74 in | 80.1°F | 59.0°F | 3.76 in |
| August | 78.2°F | 57.3°F | 3.44 in | 78.6°F | 56.6°F | 4.25 in |
| September | 71.0°F | 49.4°F | 3.39 in | 70.7°F | 48.1°F | 3.77 in |
| October | 58.2°F | 39.3°F | 2.82 in | 57.0°F | 36.1°F | 2.83 in |
| November | 44.0°F | 27.1°F | 2.03 in | 41.1°F | 24.6°F | 1.94 in |
| December | 31.2°F | 16.8°F | 1.76 in | 27.8°F | 11.6°F | 1.29 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 →