Climate twins of Pullman, WA
These are the US cities whose 12-month climate pattern most closely matches Pullman'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: Pullman vs its climate twin
Top match: Dorris, CA
| Month | Pullman | Dorris | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 37.7°F | 25.6°F | 2.67 in | 41.1°F | 21.0°F | 2.88 in |
| February | 42.0°F | 27.0°F | 1.94 in | 46.2°F | 22.7°F | 1.96 in |
| March | 49.5°F | 31.1°F | 2.05 in | 52.1°F | 26.1°F | 1.84 in |
| April | 57.1°F | 35.4°F | 1.96 in | 58.0°F | 29.8°F | 1.64 in |
| May | 66.4°F | 41.9°F | 1.81 in | 67.9°F | 37.0°F | 1.32 in |
| June | 72.6°F | 46.4°F | 1.22 in | 77.2°F | 42.7°F | 0.69 in |
| July | 84.1°F | 50.3°F | 0.44 in | 88.1°F | 48.5°F | 0.31 in |
| August | 85.3°F | 50.2°F | 0.48 in | 86.6°F | 47.0°F | 0.43 in |
| September | 75.8°F | 44.3°F | 0.65 in | 79.4°F | 39.3°F | 0.50 in |
| October | 60.7°F | 36.3°F | 1.80 in | 64.2°F | 30.6°F | 1.29 in |
| November | 45.5°F | 30.6°F | 2.62 in | 49.1°F | 25.2°F | 2.44 in |
| December | 36.9°F | 25.1°F | 2.77 in | 40.1°F | 20.9°F | 3.59 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 →