Climate twins of Brookings, SD
These are the US cities whose 12-month climate pattern most closely matches Brookings'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: Brookings vs its climate twin
Top match: Spencer, WI
| Month | Brookings | Spencer | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 22.2°F | 3.5°F | 0.43 in | 22.7°F | 6.8°F | 0.73 in |
| February | 26.9°F | 7.4°F | 0.50 in | 27.1°F | 9.8°F | 0.51 in |
| March | 39.1°F | 19.9°F | 1.06 in | 39.4°F | 21.5°F | 1.25 in |
| April | 54.1°F | 32.1°F | 2.17 in | 53.9°F | 33.4°F | 2.24 in |
| May | 66.8°F | 45.2°F | 3.45 in | 67.0°F | 45.0°F | 2.98 in |
| June | 76.8°F | 56.3°F | 4.29 in | 75.5°F | 54.9°F | 3.83 in |
| July | 81.4°F | 60.1°F | 3.61 in | 79.6°F | 58.4°F | 3.04 in |
| August | 79.3°F | 57.4°F | 3.22 in | 77.8°F | 56.7°F | 3.20 in |
| September | 72.0°F | 48.2°F | 3.10 in | 70.0°F | 48.7°F | 3.03 in |
| October | 57.6°F | 34.2°F | 1.97 in | 56.1°F | 36.9°F | 2.02 in |
| November | 41.0°F | 21.5°F | 0.80 in | 40.8°F | 25.3°F | 1.21 in |
| December | 27.5°F | 9.7°F | 0.61 in | 27.8°F | 13.5°F | 0.90 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 →