Climate twins of Upham, ND
These are the US cities whose 12-month climate pattern most closely matches Upham'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: Upham vs its climate twin
Top match: Noonan, ND
| Month | Upham | Noonan | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 16.7°F | -3.6°F | 0.56 in | 19.5°F | 0.0°F | 0.52 in |
| February | 22.1°F | 0.2°F | 0.56 in | 23.9°F | 3.8°F | 0.40 in |
| March | 34.8°F | 13.8°F | 0.77 in | 37.1°F | 15.9°F | 0.60 in |
| April | 53.0°F | 28.7°F | 1.05 in | 54.5°F | 28.6°F | 0.95 in |
| May | 66.5°F | 41.9°F | 2.36 in | 67.2°F | 40.2°F | 2.23 in |
| June | 75.1°F | 52.8°F | 4.21 in | 75.3°F | 50.4°F | 3.23 in |
| July | 80.5°F | 56.8°F | 2.77 in | 81.0°F | 55.2°F | 2.68 in |
| August | 80.3°F | 53.7°F | 1.98 in | 80.8°F | 53.1°F | 1.66 in |
| September | 70.3°F | 43.3°F | 1.60 in | 69.9°F | 43.7°F | 1.77 in |
| October | 54.2°F | 29.7°F | 1.36 in | 53.4°F | 31.0°F | 1.10 in |
| November | 35.7°F | 15.7°F | 0.84 in | 35.7°F | 17.1°F | 0.53 in |
| December | 21.9°F | 3.0°F | 0.71 in | 23.2°F | 5.0°F | 0.43 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 →