Climate twins of North Aurora, IL
These are the US cities whose 12-month climate pattern most closely matches North Aurora'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: North Aurora vs its climate twin
Top match: Monmouth, IL
| Month | North Aurora | Monmouth | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 30.5°F | 16.0°F | 1.86 in | 31.4°F | 14.7°F | 1.85 in |
| February | 34.9°F | 19.5°F | 1.83 in | 36.2°F | 18.7°F | 1.98 in |
| March | 47.0°F | 28.9°F | 2.35 in | 49.7°F | 29.1°F | 2.61 in |
| April | 59.8°F | 39.3°F | 4.05 in | 62.8°F | 39.7°F | 3.95 in |
| May | 71.1°F | 50.1°F | 4.86 in | 72.9°F | 50.9°F | 5.18 in |
| June | 80.5°F | 60.1°F | 4.50 in | 81.2°F | 60.3°F | 4.53 in |
| July | 84.0°F | 64.8°F | 4.19 in | 84.1°F | 63.6°F | 3.96 in |
| August | 82.1°F | 63.1°F | 3.86 in | 82.8°F | 61.5°F | 3.92 in |
| September | 75.8°F | 55.3°F | 3.37 in | 77.3°F | 53.6°F | 3.70 in |
| October | 62.8°F | 43.1°F | 3.70 in | 64.8°F | 42.2°F | 3.01 in |
| November | 47.8°F | 31.7°F | 2.71 in | 49.2°F | 30.6°F | 2.58 in |
| December | 35.6°F | 21.8°F | 2.19 in | 36.5°F | 20.8°F | 2.15 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 →