Climate twins of River Forest, IN
These are the US cities whose 12-month climate pattern most closely matches River Forest'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: River Forest vs its climate twin
Top match: Oakwood, IL
| Month | River Forest | Oakwood | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 34.9°F | 20.7°F | 3.00 in | 35.3°F | 19.5°F | 2.47 in |
| February | 39.3°F | 23.8°F | 2.47 in | 40.4°F | 22.9°F | 2.24 in |
| March | 50.0°F | 32.3°F | 3.47 in | 52.0°F | 32.1°F | 3.23 in |
| April | 62.7°F | 42.2°F | 4.10 in | 65.2°F | 42.3°F | 4.46 in |
| May | 72.7°F | 52.8°F | 4.56 in | 75.3°F | 52.3°F | 4.63 in |
| June | 81.1°F | 61.8°F | 5.24 in | 83.1°F | 61.3°F | 5.18 in |
| July | 83.8°F | 64.8°F | 4.34 in | 85.4°F | 64.8°F | 4.34 in |
| August | 82.4°F | 63.2°F | 3.39 in | 83.9°F | 63.0°F | 3.31 in |
| September | 76.6°F | 55.9°F | 3.12 in | 78.9°F | 55.6°F | 3.26 in |
| October | 64.7°F | 45.0°F | 3.37 in | 66.5°F | 44.3°F | 3.66 in |
| November | 50.8°F | 34.8°F | 3.66 in | 51.9°F | 33.8°F | 3.70 in |
| December | 39.4°F | 26.0°F | 3.04 in | 39.9°F | 24.9°F | 2.73 in |
Cities that consider River Forest their climate twin
These US cities have River Forest in their top 3 most-similar list — meaning if you were to move from any of these places, River Forest would feel familiar.
- Oakwood, IL (ranks River Forest #1)
- Redmon, IL (ranks River Forest #1)
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 →