Climate twins of Alameda, CA
These are the US cities whose 12-month climate pattern most closely matches Alameda'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: Alameda vs its climate twin
Top match: San Luis Obispo, CA
| Month | Alameda | San Luis Obispo | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 57.7°F | 42.0°F | 3.42 in | 65.0°F | 40.6°F | 3.86 in |
| February | 60.3°F | 44.6°F | 3.51 in | 65.1°F | 42.4°F | 3.54 in |
| March | 63.1°F | 47.0°F | 2.71 in | 66.7°F | 44.5°F | 3.17 in |
| April | 65.6°F | 49.1°F | 1.35 in | 69.1°F | 45.6°F | 1.05 in |
| May | 67.9°F | 51.9°F | 0.63 in | 72.0°F | 47.8°F | 0.47 in |
| June | 71.4°F | 54.1°F | 0.18 in | 75.2°F | 51.1°F | 0.10 in |
| July | 71.6°F | 56.2°F | 0.00 in | 78.0°F | 54.3°F | 0.08 in |
| August | 72.4°F | 56.9°F | 0.04 in | 79.3°F | 54.9°F | 0.01 in |
| September | 74.1°F | 55.5°F | 0.10 in | 79.5°F | 53.4°F | 0.04 in |
| October | 71.5°F | 51.2°F | 0.88 in | 77.2°F | 49.7°F | 0.92 in |
| November | 63.9°F | 45.8°F | 2.02 in | 71.1°F | 44.7°F | 1.43 in |
| December | 57.9°F | 42.3°F | 3.84 in | 64.9°F | 40.2°F | 3.27 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 →