Climate twins of Gig Harbor, WA
These are the US cities whose 12-month climate pattern most closely matches Gig Harbor'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: Gig Harbor vs its climate twin
Top match: Wilsonville, OR
| Month | Gig Harbor | Wilsonville | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 46.3°F | 36.4°F | 6.06 in | 47.2°F | 36.4°F | 6.12 in |
| February | 48.4°F | 36.5°F | 4.11 in | 51.6°F | 36.6°F | 4.20 in |
| March | 53.1°F | 38.5°F | 4.63 in | 55.7°F | 38.9°F | 4.92 in |
| April | 57.5°F | 41.4°F | 3.39 in | 60.2°F | 42.1°F | 3.28 in |
| May | 64.5°F | 46.5°F | 2.08 in | 67.7°F | 47.1°F | 2.44 in |
| June | 69.7°F | 50.7°F | 1.36 in | 73.7°F | 51.7°F | 1.59 in |
| July | 75.5°F | 54.0°F | 0.68 in | 81.7°F | 55.5°F | 0.45 in |
| August | 75.6°F | 54.3°F | 0.86 in | 82.2°F | 55.3°F | 0.53 in |
| September | 69.6°F | 51.4°F | 1.54 in | 76.2°F | 51.3°F | 1.73 in |
| October | 58.6°F | 45.7°F | 4.32 in | 63.5°F | 44.6°F | 4.27 in |
| November | 50.5°F | 39.8°F | 7.18 in | 52.4°F | 39.2°F | 6.25 in |
| December | 45.5°F | 36.2°F | 5.81 in | 47.0°F | 35.5°F | 6.60 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 →