Climate twins of Morris, IL
These are the US cities whose 12-month climate pattern most closely matches Morris'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: Morris vs its climate twin
Top match: Wabash, IN
| Month | Morris | Wabash | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 31.2°F | 15.7°F | 2.09 in | 33.8°F | 17.9°F | 2.41 in |
| February | 35.6°F | 19.3°F | 1.79 in | 38.0°F | 20.3°F | 2.25 in |
| March | 47.7°F | 28.9°F | 2.23 in | 48.9°F | 29.2°F | 2.63 in |
| April | 60.9°F | 39.6°F | 3.34 in | 61.9°F | 39.6°F | 3.54 in |
| May | 72.1°F | 51.0°F | 4.39 in | 73.1°F | 50.9°F | 4.36 in |
| June | 81.7°F | 61.2°F | 4.72 in | 81.6°F | 60.5°F | 4.88 in |
| July | 84.9°F | 65.0°F | 4.92 in | 84.8°F | 63.6°F | 4.56 in |
| August | 82.7°F | 63.0°F | 4.01 in | 83.0°F | 61.7°F | 4.20 in |
| September | 77.4°F | 54.8°F | 3.55 in | 77.6°F | 54.4°F | 3.20 in |
| October | 64.4°F | 42.8°F | 3.23 in | 65.5°F | 43.1°F | 3.06 in |
| November | 49.0°F | 31.6°F | 2.50 in | 51.0°F | 32.5°F | 2.91 in |
| December | 36.7°F | 21.5°F | 2.02 in | 38.4°F | 23.5°F | 2.34 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 →