Climate twins of St. Elmo, IL
These are the US cities whose 12-month climate pattern most closely matches St. Elmo'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: St. Elmo vs its climate twin
Top match: Whiteside, MO
| Month | St. Elmo | Whiteside | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 37.0°F | 21.3°F | 2.82 in | 37.7°F | 19.7°F | 2.35 in |
| February | 42.1°F | 25.3°F | 2.41 in | 43.3°F | 23.3°F | 2.21 in |
| March | 52.4°F | 34.7°F | 3.17 in | 54.9°F | 32.5°F | 3.20 in |
| April | 64.9°F | 45.4°F | 4.39 in | 66.9°F | 42.7°F | 4.40 in |
| May | 74.7°F | 55.1°F | 5.34 in | 75.2°F | 53.2°F | 5.00 in |
| June | 83.6°F | 65.1°F | 4.13 in | 83.4°F | 62.1°F | 4.17 in |
| July | 86.7°F | 67.0°F | 3.74 in | 86.8°F | 66.0°F | 4.24 in |
| August | 85.5°F | 64.1°F | 3.15 in | 85.1°F | 64.0°F | 3.16 in |
| September | 80.0°F | 56.4°F | 3.38 in | 78.5°F | 55.7°F | 3.49 in |
| October | 66.6°F | 44.9°F | 2.89 in | 67.3°F | 44.4°F | 3.28 in |
| November | 52.8°F | 35.5°F | 3.63 in | 53.7°F | 33.4°F | 3.28 in |
| December | 41.6°F | 26.7°F | 2.15 in | 41.4°F | 24.4°F | 2.47 in |
Cities that consider St. Elmo their climate twin
These US cities have St. Elmo in their top 3 most-similar list — meaning if you were to move from any of these places, St. Elmo would feel familiar.
- Bellflower, MO (ranks St. Elmo #1)
- Flint Hill, MO (ranks St. Elmo #1)
- Foristell, MO (ranks St. Elmo #1)
- Hawk Point, MO (ranks St. Elmo #1)
- Innsbrook, MO (ranks St. Elmo #1)
- Jonesburg, MO (ranks St. Elmo #1)
- Moscow Mills, MO (ranks St. Elmo #1)
- Pendleton, MO (ranks St. Elmo #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 →