Climate twins of DeKalb, IL
These are the US cities whose 12-month climate pattern most closely matches DeKalb'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: DeKalb vs its climate twin
Top match: Stanwood, IA
| Month | DeKalb | Stanwood | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 28.1°F | 13.1°F | 1.69 in | 28.7°F | 11.9°F | 1.41 in |
| February | 32.5°F | 16.6°F | 1.71 in | 33.1°F | 16.2°F | 1.45 in |
| March | 45.0°F | 26.8°F | 2.24 in | 46.8°F | 27.6°F | 2.14 in |
| April | 58.6°F | 37.3°F | 3.56 in | 60.7°F | 38.2°F | 3.79 in |
| May | 70.2°F | 49.2°F | 4.79 in | 71.9°F | 50.6°F | 4.74 in |
| June | 79.9°F | 59.5°F | 4.57 in | 81.5°F | 61.0°F | 4.74 in |
| July | 83.1°F | 63.3°F | 4.00 in | 83.7°F | 63.9°F | 4.08 in |
| August | 81.2°F | 61.3°F | 4.06 in | 82.1°F | 61.1°F | 3.83 in |
| September | 74.9°F | 53.2°F | 3.32 in | 76.8°F | 52.9°F | 3.46 in |
| October | 62.0°F | 41.0°F | 2.96 in | 63.9°F | 40.6°F | 3.11 in |
| November | 46.3°F | 29.6°F | 2.31 in | 47.8°F | 29.2°F | 2.19 in |
| December | 33.6°F | 19.1°F | 2.04 in | 34.0°F | 18.5°F | 1.55 in |
Cities that consider DeKalb their climate twin
These US cities have DeKalb in their top 3 most-similar list — meaning if you were to move from any of these places, DeKalb would feel familiar.
- Bennett, IA (ranks DeKalb #2)
- Mechanicsville, IA (ranks DeKalb #2)
- Stanwood, IA (ranks DeKalb #2)
- Tipton, IA (ranks DeKalb #2)
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 →