Climate twins of Pittsburgh, PA
These are the US cities whose 12-month climate pattern most closely matches Pittsburgh'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: Pittsburgh vs its climate twin
Top match: Chauncey, OH
| Month | Pittsburgh | Chauncey | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 36.6°F | 22.3°F | 3.08 in | 38.0°F | 21.5°F | 2.89 in |
| February | 39.9°F | 24.3°F | 2.57 in | 42.2°F | 23.4°F | 2.94 in |
| March | 49.4°F | 31.3°F | 3.22 in | 52.2°F | 30.1°F | 3.57 in |
| April | 62.5°F | 41.8°F | 3.40 in | 65.2°F | 39.7°F | 3.78 in |
| May | 71.9°F | 51.8°F | 4.08 in | 72.3°F | 50.0°F | 4.20 in |
| June | 79.1°F | 59.9°F | 4.58 in | 79.5°F | 59.2°F | 4.50 in |
| July | 83.0°F | 64.1°F | 3.93 in | 82.4°F | 63.0°F | 4.34 in |
| August | 81.3°F | 62.8°F | 3.81 in | 81.5°F | 61.4°F | 3.16 in |
| September | 74.8°F | 55.9°F | 3.54 in | 76.2°F | 53.8°F | 3.18 in |
| October | 63.3°F | 45.1°F | 3.06 in | 65.2°F | 42.4°F | 2.93 in |
| November | 51.1°F | 35.3°F | 3.03 in | 53.2°F | 32.1°F | 2.91 in |
| December | 41.0°F | 27.7°F | 3.04 in | 42.6°F | 26.7°F | 3.16 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 →