Climate twins of Riverton, WY
These are the US cities whose 12-month climate pattern most closely matches Riverton'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: Riverton vs its climate twin
Top match: Spencer, ID
| Month | Riverton | Spencer | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 28.7°F | 4.2°F | 0.35 in | 29.5°F | 14.9°F | 0.78 in |
| February | 35.5°F | 9.6°F | 0.43 in | 33.2°F | 17.5°F | 0.64 in |
| March | 49.2°F | 22.2°F | 0.71 in | 44.4°F | 25.6°F | 0.81 in |
| April | 58.0°F | 30.5°F | 1.31 in | 56.7°F | 32.9°F | 1.29 in |
| May | 67.4°F | 40.3°F | 1.98 in | 66.7°F | 40.6°F | 2.04 in |
| June | 78.9°F | 48.5°F | 1.09 in | 76.3°F | 47.2°F | 1.59 in |
| July | 87.9°F | 54.8°F | 0.70 in | 86.7°F | 54.7°F | 0.68 in |
| August | 85.7°F | 52.2°F | 0.45 in | 85.4°F | 53.1°F | 0.73 in |
| September | 74.4°F | 42.5°F | 0.80 in | 74.6°F | 44.8°F | 0.89 in |
| October | 59.2°F | 30.4°F | 0.93 in | 58.1°F | 34.3°F | 1.09 in |
| November | 42.7°F | 17.1°F | 0.44 in | 41.0°F | 23.9°F | 0.71 in |
| December | 29.6°F | 5.7°F | 0.31 in | 29.7°F | 15.6°F | 0.99 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 →