Climate twins of Fulton, IL
These are the US cities whose 12-month climate pattern most closely matches Fulton'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: Fulton vs its climate twin
Top match: Onalaska, WI
| Month | Fulton | Onalaska | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 29.3°F | 13.6°F | 1.40 in | 27.4°F | 10.5°F | 1.25 in |
| February | 33.8°F | 17.1°F | 1.56 in | 32.5°F | 14.2°F | 1.19 in |
| March | 45.7°F | 28.2°F | 2.41 in | 45.6°F | 26.0°F | 2.04 in |
| April | 59.4°F | 39.8°F | 3.39 in | 59.6°F | 38.4°F | 3.75 in |
| May | 71.1°F | 51.4°F | 4.03 in | 72.0°F | 50.1°F | 4.33 in |
| June | 80.7°F | 61.7°F | 4.52 in | 81.7°F | 60.4°F | 5.08 in |
| July | 84.0°F | 65.2°F | 3.40 in | 85.4°F | 64.5°F | 4.23 in |
| August | 82.1°F | 63.2°F | 3.43 in | 83.2°F | 62.3°F | 3.90 in |
| September | 75.9°F | 55.2°F | 3.66 in | 75.5°F | 54.1°F | 3.63 in |
| October | 63.0°F | 43.4°F | 2.58 in | 61.6°F | 41.9°F | 2.49 in |
| November | 47.6°F | 31.4°F | 2.20 in | 45.8°F | 29.5°F | 1.85 in |
| December | 34.8°F | 20.5°F | 1.69 in | 32.6°F | 17.6°F | 1.49 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 →