Climate twins of Castle Valley, UT
These are the US cities whose 12-month climate pattern most closely matches Castle Valley'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: Castle Valley vs its climate twin
Top match: Bernalillo, NM
| Month | Castle Valley | Bernalillo | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 38.8°F | 17.9°F | 0.95 in | 47.4°F | 21.5°F | 0.53 in |
| February | 46.2°F | 25.1°F | 1.06 in | 53.8°F | 25.2°F | 0.51 in |
| March | 58.1°F | 33.4°F | 1.11 in | 62.9°F | 32.4°F | 0.47 in |
| April | 65.9°F | 40.5°F | 0.81 in | 72.1°F | 39.4°F | 0.57 in |
| May | 76.6°F | 49.9°F | 0.88 in | 80.4°F | 48.4°F | 0.64 in |
| June | 89.3°F | 60.5°F | 0.59 in | 92.3°F | 57.8°F | 0.42 in |
| July | 95.2°F | 67.7°F | 0.97 in | 93.6°F | 63.3°F | 1.44 in |
| August | 92.3°F | 64.8°F | 1.06 in | 90.9°F | 60.9°F | 1.77 in |
| September | 83.4°F | 56.0°F | 1.31 in | 83.9°F | 53.7°F | 1.33 in |
| October | 68.0°F | 41.7°F | 1.48 in | 71.6°F | 40.8°F | 1.39 in |
| November | 52.3°F | 29.7°F | 1.11 in | 57.7°F | 29.0°F | 0.62 in |
| December | 39.0°F | 19.4°F | 1.01 in | 47.0°F | 22.6°F | 0.76 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 →