Climate twins of Douglas, AZ
These are the US cities whose 12-month climate pattern most closely matches Douglas'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: Douglas vs its climate twin
Top match: Van Horn, TX
| Month | Douglas | Van Horn | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 65.2°F | 30.9°F | 0.91 in | 59.1°F | 30.0°F | 0.47 in |
| February | 68.5°F | 35.1°F | 0.74 in | 64.2°F | 33.8°F | 0.44 in |
| March | 73.2°F | 39.6°F | 0.61 in | 71.6°F | 40.6°F | 0.25 in |
| April | 81.0°F | 45.2°F | 0.17 in | 78.8°F | 47.9°F | 0.22 in |
| May | 88.8°F | 53.4°F | 0.40 in | 86.6°F | 57.3°F | 0.49 in |
| June | 97.1°F | 61.7°F | 0.53 in | 94.5°F | 66.4°F | 1.10 in |
| July | 95.4°F | 66.1°F | 3.45 in | 92.9°F | 68.3°F | 2.05 in |
| August | 92.7°F | 65.4°F | 3.20 in | 91.9°F | 67.1°F | 1.95 in |
| September | 90.2°F | 60.1°F | 1.67 in | 85.9°F | 60.6°F | 1.50 in |
| October | 83.3°F | 48.7°F | 0.78 in | 78.7°F | 49.8°F | 0.94 in |
| November | 74.0°F | 37.7°F | 0.64 in | 68.1°F | 38.3°F | 0.42 in |
| December | 65.1°F | 30.4°F | 0.86 in | 59.2°F | 30.9°F | 0.49 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 →