Climate twins of Fairfax, VA
These are the US cities whose 12-month climate pattern most closely matches Fairfax'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: Fairfax vs its climate twin
Top match: Trenton, NJ
| Month | Fairfax | Trenton | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 42.3°F | 23.4°F | 3.28 in | 39.7°F | 24.3°F | 3.29 in |
| February | 45.3°F | 24.3°F | 2.62 in | 42.8°F | 25.9°F | 2.65 in |
| March | 53.3°F | 31.6°F | 3.84 in | 50.8°F | 32.7°F | 4.00 in |
| April | 64.8°F | 41.2°F | 3.39 in | 62.9°F | 42.1°F | 3.63 in |
| May | 71.6°F | 52.1°F | 4.28 in | 72.4°F | 51.6°F | 3.99 in |
| June | 79.5°F | 61.0°F | 4.13 in | 81.0°F | 60.9°F | 4.35 in |
| July | 83.8°F | 66.6°F | 4.26 in | 86.0°F | 66.6°F | 4.42 in |
| August | 82.4°F | 64.9°F | 3.54 in | 84.0°F | 64.8°F | 4.22 in |
| September | 75.9°F | 57.1°F | 4.16 in | 77.1°F | 57.7°F | 4.05 in |
| October | 65.4°F | 45.2°F | 3.51 in | 65.5°F | 45.9°F | 3.79 in |
| November | 55.8°F | 34.6°F | 3.13 in | 54.5°F | 36.3°F | 3.20 in |
| December | 46.2°F | 28.3°F | 3.43 in | 44.4°F | 29.3°F | 4.04 in |
Cities that consider Fairfax their climate twin
These US cities have Fairfax in their top 3 most-similar list — meaning if you were to move from any of these places, Fairfax would feel familiar.
- Millville, NJ (ranks Fairfax #3)
- Vineland, NJ (ranks Fairfax #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 →