Climate twins of Fresno, CA
These are the US cities whose 12-month climate pattern most closely matches Fresno'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: Fresno vs its climate twin
Top match: Palmdale, CA
| Month | Fresno | Palmdale | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 55.4°F | 40.6°F | 2.16 in | 59.5°F | 34.7°F | 1.43 in |
| February | 61.3°F | 43.3°F | 1.93 in | 62.9°F | 37.4°F | 1.84 in |
| March | 67.5°F | 47.3°F | 1.90 in | 69.2°F | 41.6°F | 1.08 in |
| April | 73.7°F | 50.9°F | 1.04 in | 75.4°F | 45.8°F | 0.39 in |
| May | 82.7°F | 57.6°F | 0.42 in | 82.7°F | 53.3°F | 0.11 in |
| June | 91.4°F | 63.9°F | 0.24 in | 91.6°F | 60.6°F | 0.02 in |
| July | 97.7°F | 69.3°F | 0.03 in | 97.6°F | 67.5°F | 0.17 in |
| August | 96.5°F | 67.9°F | 0.00 in | 97.6°F | 66.3°F | 0.04 in |
| September | 90.7°F | 63.4°F | 0.05 in | 92.5°F | 60.4°F | 0.14 in |
| October | 78.7°F | 54.6°F | 0.56 in | 80.8°F | 50.1°F | 0.40 in |
| November | 64.9°F | 45.4°F | 0.87 in | 67.7°F | 39.5°F | 0.40 in |
| December | 55.3°F | 39.8°F | 1.79 in | 58.1°F | 34.2°F | 1.30 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 →