Climate twins of Mason City, NE
These are the US cities whose 12-month climate pattern most closely matches Mason City'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 City vs its climate twin
Top match: Ulysses, NE
| Month | Mason City | Ulysses | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 36.8°F | 13.2°F | 0.60 in | 34.1°F | 12.1°F | 0.58 in |
| February | 40.3°F | 15.7°F | 0.73 in | 38.8°F | 15.7°F | 0.69 in |
| March | 51.9°F | 25.2°F | 1.51 in | 50.7°F | 26.0°F | 1.45 in |
| April | 61.5°F | 35.0°F | 2.79 in | 62.2°F | 35.8°F | 2.85 in |
| May | 70.9°F | 46.5°F | 4.37 in | 72.5°F | 48.4°F | 4.87 in |
| June | 81.8°F | 57.6°F | 3.93 in | 82.0°F | 59.3°F | 4.36 in |
| July | 87.1°F | 62.5°F | 3.23 in | 86.0°F | 63.6°F | 3.25 in |
| August | 85.2°F | 60.0°F | 3.14 in | 84.2°F | 60.9°F | 3.38 in |
| September | 78.1°F | 49.5°F | 2.33 in | 78.2°F | 50.6°F | 2.55 in |
| October | 64.5°F | 35.9°F | 1.96 in | 65.4°F | 37.9°F | 2.07 in |
| November | 50.2°F | 24.4°F | 1.09 in | 50.6°F | 25.3°F | 1.34 in |
| December | 38.8°F | 16.2°F | 0.60 in | 38.0°F | 16.0°F | 0.91 in |
Cities that consider Mason City their climate twin
These US cities have Mason City in their top 3 most-similar list — meaning if you were to move from any of these places, Mason City would feel familiar.
- Ulysses, NE (ranks Mason City #1)
- Parkston, SD (ranks Mason City #1)
- Armour, SD (ranks Mason City #1)
- Corsica, SD (ranks Mason City #1)
- Delmont, SD (ranks Mason City #1)
- Friend, NE (ranks Mason City #1)
- Dorchester, NE (ranks Mason City #1)
- Tripp, SD (ranks Mason City #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 →