Climate twins of Pacifica, CA
These are the US cities whose 12-month climate pattern most closely matches Pacifica'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: Pacifica vs its climate twin
Top match: Eureka, CA
| Month | Pacifica | Eureka | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 58.1°F | 45.3°F | 6.14 in | 55.1°F | 40.8°F | 6.67 in |
| February | 60.1°F | 46.0°F | 6.48 in | 55.4°F | 41.3°F | 5.64 in |
| March | 61.4°F | 46.1°F | 4.45 in | 56.1°F | 42.4°F | 5.75 in |
| April | 63.9°F | 47.6°F | 2.36 in | 57.4°F | 44.2°F | 3.64 in |
| May | 66.9°F | 49.4°F | 1.00 in | 59.6°F | 47.7°F | 1.66 in |
| June | 68.8°F | 50.8°F | 0.25 in | 61.9°F | 50.1°F | 0.70 in |
| July | 69.4°F | 52.3°F | 0.01 in | 63.1°F | 52.4°F | 0.18 in |
| August | 71.0°F | 53.3°F | 0.08 in | 64.0°F | 53.0°F | 0.18 in |
| September | 72.3°F | 53.4°F | 0.11 in | 63.9°F | 50.5°F | 0.68 in |
| October | 70.1°F | 52.3°F | 1.50 in | 61.9°F | 46.8°F | 2.31 in |
| November | 64.1°F | 49.7°F | 2.86 in | 57.8°F | 43.2°F | 4.89 in |
| December | 58.8°F | 46.2°F | 6.64 in | 54.7°F | 40.0°F | 8.10 in |
Cities that consider Pacifica their climate twin
These US cities have Pacifica in their top 3 most-similar list — meaning if you were to move from any of these places, Pacifica would feel familiar.
- Arcata, CA (ranks Pacifica #3)
- Eureka, CA (ranks Pacifica #3)
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 →