Climate twins of Fraser, IA
These are the US cities whose 12-month climate pattern most closely matches Fraser'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: Fraser vs its climate twin
Top match: Lone Tree, IA
| Month | Fraser | Lone Tree | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 28.2°F | 9.1°F | 1.20 in | 29.3°F | 11.6°F | 1.14 in |
| February | 33.3°F | 13.3°F | 1.41 in | 34.3°F | 15.5°F | 1.40 in |
| March | 46.3°F | 25.6°F | 2.26 in | 47.9°F | 26.6°F | 2.33 in |
| April | 60.0°F | 36.7°F | 4.06 in | 61.6°F | 37.1°F | 3.86 in |
| May | 71.0°F | 48.5°F | 5.17 in | 72.2°F | 48.9°F | 5.05 in |
| June | 80.7°F | 58.6°F | 5.38 in | 81.0°F | 59.0°F | 5.49 in |
| July | 84.2°F | 62.7°F | 4.80 in | 84.4°F | 62.5°F | 4.56 in |
| August | 82.2°F | 60.8°F | 4.92 in | 82.4°F | 60.2°F | 4.32 in |
| September | 76.1°F | 51.7°F | 3.32 in | 76.3°F | 51.6°F | 3.45 in |
| October | 63.2°F | 38.8°F | 2.97 in | 63.2°F | 39.9°F | 3.00 in |
| November | 46.9°F | 26.8°F | 2.08 in | 47.5°F | 27.6°F | 2.27 in |
| December | 33.8°F | 15.8°F | 1.57 in | 34.4°F | 17.5°F | 1.60 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 →