Climate twins of Morrisville, NC
These are the US cities whose 12-month climate pattern most closely matches Morrisville'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: Morrisville vs its climate twin
Top match: Poquoson, VA
| Month | Morrisville | Poquoson | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 51.9°F | 31.8°F | 3.43 in | 49.0°F | 32.1°F | 3.48 in |
| February | 55.8°F | 34.2°F | 2.78 in | 51.5°F | 33.8°F | 2.88 in |
| March | 63.3°F | 40.3°F | 4.10 in | 58.1°F | 39.8°F | 4.42 in |
| April | 72.7°F | 48.9°F | 3.53 in | 67.6°F | 48.6°F | 3.33 in |
| May | 80.0°F | 57.7°F | 3.38 in | 75.5°F | 58.0°F | 3.77 in |
| June | 87.4°F | 66.0°F | 3.89 in | 82.9°F | 67.1°F | 4.01 in |
| July | 90.8°F | 70.2°F | 5.02 in | 87.3°F | 71.2°F | 5.33 in |
| August | 88.7°F | 68.9°F | 4.71 in | 85.1°F | 70.5°F | 4.94 in |
| September | 82.5°F | 62.7°F | 5.15 in | 79.4°F | 65.0°F | 4.77 in |
| October | 73.0°F | 50.3°F | 3.37 in | 69.7°F | 52.9°F | 3.93 in |
| November | 63.0°F | 40.0°F | 3.32 in | 60.2°F | 41.9°F | 3.27 in |
| December | 54.7°F | 34.4°F | 3.39 in | 52.2°F | 35.5°F | 3.70 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 →