Climate twins of Tama, IA
These are the US cities whose 12-month climate pattern most closely matches Tama'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: Tama vs its climate twin
Top match: Blue River, WI
| Month | Tama | Blue River | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 26.8°F | 9.4°F | 0.98 in | 28.7°F | 10.2°F | 0.98 in |
| February | 31.5°F | 13.2°F | 1.01 in | 33.9°F | 13.6°F | 0.96 in |
| March | 45.1°F | 24.6°F | 1.79 in | 46.6°F | 25.4°F | 1.91 in |
| April | 59.2°F | 35.7°F | 3.51 in | 60.6°F | 35.8°F | 3.64 in |
| May | 70.3°F | 48.0°F | 4.80 in | 72.3°F | 46.8°F | 4.35 in |
| June | 79.7°F | 58.7°F | 5.60 in | 81.2°F | 56.9°F | 5.15 in |
| July | 83.0°F | 61.9°F | 4.05 in | 84.4°F | 61.2°F | 3.84 in |
| August | 81.1°F | 59.3°F | 3.99 in | 83.1°F | 59.3°F | 4.07 in |
| September | 75.1°F | 50.8°F | 3.48 in | 75.8°F | 50.6°F | 3.37 in |
| October | 62.0°F | 38.9°F | 2.82 in | 62.5°F | 38.3°F | 2.48 in |
| November | 46.0°F | 26.6°F | 2.02 in | 47.0°F | 27.7°F | 1.87 in |
| December | 32.6°F | 15.8°F | 1.20 in | 34.3°F | 17.0°F | 1.32 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 →