Climate twins of Berkley, IA
These are the US cities whose 12-month climate pattern most closely matches Berkley'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: Berkley vs its climate twin
Top match: La Crescent, MN
| Month | Berkley | La Crescent | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 29.5°F | 10.2°F | 0.95 in | 25.5°F | 11.7°F | 1.17 in |
| February | 34.0°F | 14.1°F | 1.14 in | 30.1°F | 14.5°F | 1.17 in |
| March | 47.5°F | 25.8°F | 1.96 in | 42.1°F | 27.0°F | 1.93 in |
| April | 61.3°F | 36.7°F | 4.10 in | 56.9°F | 40.2°F | 4.07 in |
| May | 71.9°F | 49.0°F | 5.15 in | 68.2°F | 51.5°F | 5.07 in |
| June | 81.9°F | 59.8°F | 4.88 in | 78.0°F | 62.6°F | 5.44 in |
| July | 85.4°F | 63.5°F | 4.42 in | 81.8°F | 66.8°F | 4.21 in |
| August | 83.3°F | 60.8°F | 4.14 in | 79.6°F | 64.5°F | 4.31 in |
| September | 77.1°F | 51.5°F | 3.44 in | 71.6°F | 55.8°F | 3.87 in |
| October | 64.0°F | 39.1°F | 2.70 in | 58.5°F | 44.4°F | 2.97 in |
| November | 47.8°F | 26.8°F | 1.86 in | 43.0°F | 30.9°F | 1.98 in |
| December | 35.0°F | 16.5°F | 1.38 in | 30.1°F | 19.3°F | 1.44 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 →