Climate twins of Jacksonville, GA
These are the US cities whose 12-month climate pattern most closely matches Jacksonville'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: Jacksonville vs its climate twin
Top match: Pinewood, SC
| Month | Jacksonville | Pinewood | ||||
|---|---|---|---|---|---|---|
| High | Low | Precip | High | Low | Precip | |
| January | 60.1°F | 36.9°F | 4.21 in | 57.9°F | 35.2°F | 3.81 in |
| February | 64.3°F | 40.0°F | 4.28 in | 62.0°F | 37.6°F | 3.64 in |
| March | 70.3°F | 45.6°F | 4.81 in | 69.0°F | 43.3°F | 3.84 in |
| April | 77.7°F | 52.3°F | 3.19 in | 77.1°F | 51.0°F | 3.04 in |
| May | 84.5°F | 60.2°F | 2.72 in | 83.1°F | 59.6°F | 3.23 in |
| June | 88.9°F | 67.7°F | 4.87 in | 87.7°F | 67.3°F | 5.46 in |
| July | 91.7°F | 70.3°F | 4.61 in | 90.8°F | 70.7°F | 4.50 in |
| August | 90.1°F | 70.3°F | 5.84 in | 89.6°F | 69.7°F | 4.90 in |
| September | 86.2°F | 65.8°F | 3.48 in | 85.7°F | 64.2°F | 3.37 in |
| October | 78.3°F | 55.3°F | 2.58 in | 77.3°F | 53.3°F | 3.41 in |
| November | 69.1°F | 44.2°F | 2.79 in | 67.7°F | 43.0°F | 3.08 in |
| December | 62.8°F | 39.6°F | 4.10 in | 60.6°F | 37.3°F | 3.93 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 →