Climate twins of Mason, WI
These are the US cities whose 12-month climate pattern most closely matches Mason'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: Mason vs its climate twin
Top match: Mattoon, WI
| Month | Mason | Mattoon | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 22.3°F | 5.8°F | 0.64 in | 20.9°F | 3.7°F | 0.83 in |
| February | 26.6°F | 7.7°F | 0.70 in | 25.0°F | 5.1°F | 0.74 in |
| March | 37.8°F | 17.9°F | 1.12 in | 36.9°F | 16.9°F | 1.27 in |
| April | 50.6°F | 28.5°F | 2.26 in | 51.1°F | 30.6°F | 2.51 in |
| May | 64.4°F | 38.6°F | 3.45 in | 64.0°F | 42.5°F | 3.29 in |
| June | 73.4°F | 48.5°F | 3.92 in | 73.8°F | 52.7°F | 4.46 in |
| July | 78.9°F | 54.5°F | 3.93 in | 77.9°F | 56.7°F | 3.46 in |
| August | 77.1°F | 53.2°F | 3.44 in | 76.0°F | 54.6°F | 3.40 in |
| September | 69.0°F | 45.8°F | 3.03 in | 68.3°F | 47.7°F | 3.40 in |
| October | 55.4°F | 34.7°F | 2.83 in | 54.2°F | 35.6°F | 3.04 in |
| November | 40.1°F | 24.5°F | 1.55 in | 38.5°F | 24.2°F | 1.74 in |
| December | 27.6°F | 12.6°F | 0.98 in | 26.2°F | 10.6°F | 1.21 in |
Cities that consider Mason their climate twin
These US cities have Mason in their top 3 most-similar list — meaning if you were to move from any of these places, Mason would feel familiar.
- Mattoon, WI (ranks Mason #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 →