Climate twins of Shell Rock, IA
These are the US cities whose 12-month climate pattern most closely matches Shell Rock'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: Shell Rock vs its climate twin
Top match: Newell, IA
| Month | Shell Rock | Newell | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 25.0°F | 7.5°F | 0.94 in | 25.8°F | 8.8°F | 0.77 in |
| February | 29.4°F | 11.5°F | 1.04 in | 30.2°F | 13.3°F | 1.01 in |
| March | 43.4°F | 24.1°F | 1.79 in | 43.4°F | 25.1°F | 1.74 in |
| April | 58.5°F | 35.9°F | 3.81 in | 58.1°F | 36.9°F | 3.53 in |
| May | 70.2°F | 48.6°F | 5.13 in | 69.1°F | 49.4°F | 4.87 in |
| June | 79.8°F | 59.3°F | 5.46 in | 79.2°F | 60.2°F | 5.33 in |
| July | 82.7°F | 62.8°F | 4.20 in | 82.3°F | 63.7°F | 3.83 in |
| August | 80.4°F | 60.2°F | 4.04 in | 79.9°F | 61.4°F | 4.43 in |
| September | 74.3°F | 51.2°F | 3.37 in | 74.1°F | 52.6°F | 2.96 in |
| October | 61.0°F | 39.0°F | 2.51 in | 60.6°F | 39.6°F | 2.42 in |
| November | 44.3°F | 25.4°F | 1.76 in | 44.3°F | 26.6°F | 1.75 in |
| December | 30.5°F | 14.6°F | 1.35 in | 31.1°F | 15.3°F | 1.11 in |
Cities that consider Shell Rock their climate twin
These US cities have Shell Rock in their top 3 most-similar list — meaning if you were to move from any of these places, Shell Rock would feel familiar.
- Jolley, IA (ranks Shell Rock #1)
- Lake City, IA (ranks Shell Rock #1)
- Pomeroy, IA (ranks Shell Rock #1)
- Rockwell City, IA (ranks Shell Rock #1)
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 →