Nashville vs Chattanooga: which is sunnier?
🇺🇸 United States vs 🇺🇸 United States · 180 km apart · long-term climate normals (NASA POWER, 2001–2020)
Nashville and Chattanooga are virtually tied for annual sunshine — about 2,269 vs 2,300 hours a year. Chattanooga has the higher Sunshine Score in 6 of 12 months, Nashville in 3 (3 within 2 points).
Scores are the 0–100 Sunshine Score — sunshine, daytime warmth and dryness in one number, per month.

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At a glance
| Nashville | Chattanooga | |
|---|---|---|
| Sunshine hours / year | 2,269 | 2,300 |
| Sunniest month | September (75/100) | October (76/100) |
| Nov–Feb average score | 15/100 | 24/100 |
| Jun–Aug average score | 72/100 | 67/100 |
| Rain / year | 1,350 mm | 1,354 mm |
| Peak midday UV | 8 (very high) | 8 (very high) |
Nashville vs Chattanooga month by month
| Month | Sunshine Score | Day high °C | Rain mm | |||
|---|---|---|---|---|---|---|
| Nashville | Chattanooga | Nashville | Chattanooga | Nashville | Chattanooga | |
| January | 0 | 6 | 7° | 9° | 102 | 109 |
| February | 11 | 23 | 10° | 12° | 129 | 122 |
| March | 41 | 53 | 15° | 17° | 115 | 118 |
| April | 69 | 71 | 21° | 22° | 128 | 115 |
| May | 68 | 71 | 25° | 26° | 129 | 115 |
| June | 73 | 73 | 29° | 31° | 102 | 106 |
| July | 69 | 62 | 32° | 33° | 124 | 127 |
| August | 73 | 67 | 32° | 33° | 102 | 96 |
| September | 75 | 72 | 29° | 30° | 92 | 108 |
| October | 74 | 76 | 22° | 23° | 101 | 89 |
| November | 43 | 48 | 15° | 16° | 100 | 109 |
| December | 6 | 17 | 9° | 11° | 126 | 140 |
The sunnier month by month: Jan Chattanooga · Feb Chattanooga · Mar Chattanooga · Apr even · May Chattanooga · Jun even · Jul Nashville · Aug Nashville · Sep Nashville · Oct even · Nov Chattanooga · Dec Chattanooga.
When to pick which
- November–February: Chattanooga (average score 24/100 vs 15). Chattanooga is the warmer, around 12°C daytime highs vs 10°C. See the winter sun ranking.
- March–May: Chattanooga (average score 65/100 vs 59). Chattanooga is the warmer, around 22°C daytime highs vs 20°C.
- June–August: Nashville (average score 72/100 vs 67). Daytime highs are similar (31°C vs 32°C).
- September–October: too close to call — Nashville averages 75/100, Chattanooga 74/100. Daytime highs are similar (26°C vs 27°C).
Full month-by-month guides: Nashville weather by month · Chattanooga weather by month · Best time to visit United States.
More comparisons: Nashville vs Huntsville · Nashville vs Evansville · Chattanooga vs Atlanta · Chattanooga vs Knoxville/Maryville · Chattanooga vs Huntsville · all head-to-heads