Chattanooga Climate by Month
Chattanooga, Tennessee, United States
Hot summers and cool winters, with rain spread through the year.
Chattanooga has hot summers and cool winters, with rain spread through the year. July is the warmest month, with highs around 90°F (32°C); January is the coolest at 51°F (10°C), and nights dip to 31°F (0°C). About 58 in (1475 mm) of rain falls in a typical year, with no clear rainy season.
- Warmest month
- 90°F(32°C)
- Average high, July
- Coldest nights
- 31°F(0°C)
- Average low, January
- Rain per year
- 58 in(1475 mm)
- No clear rainy season
- Humidity
- 69%
- Sunniest: July
Best and worst months in Chattanooga
Best for weatherThe most comfortable weather comes in October, with highs around 74°F (24°C) and about 3.5 in (90 mm) of rain a month.
Least pleasantDecember and January are the least pleasant; December is the coldest, with highs of only 53°F (12°C).
Comfort combines how close the afternoon high is to 75°F (24°C) with how much rain falls and how humid it is. See where the weather is best in October.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Chattanooga weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 51°F(10°C) | 31°F(0°C) | 5.2 in(132 mm) | 69% | 2.3 |
| FebFebruary | 55°F(13°C) | 34°F(1°C) | 5.0 in(128 mm) | 70% | 2.9 |
| MarMarch | 64°F(18°C) | 40°F(5°C) | 5.6 in(143 mm) | 61% | 4.0 |
| AprApril | 73°F(23°C) | 48°F(9°C) | 5.1 in(130 mm) | 61% | 5.0 |
| MayMay | 81°F(27°C) | 57°F(14°C) | 4.3 in(110 mm) | 67% | 5.8 |
| JunJune | 87°F(31°C) | 65°F(18°C) | 4.6 in(116 mm) | 72% | 5.9 |
| JulJuly | 90°F(32°C) | 69°F(20°C) | 5.2 in(131 mm) | 70% | 6.0 |
| AugAugust | 89°F(32°C) | 67°F(20°C) | 3.7 in(94 mm) | 69% | 5.6 |
| SepSeptember | 84°F(29°C) | 61°F(16°C) | 4.6 in(117 mm) | 69% | 4.7 |
| OctOctoberBest | 74°F(24°C) | 49°F(10°C) | 3.5 in(90 mm) | 69% | 3.6 |
| NovNovember | 63°F(17°C) | 39°F(4°C) | 5.0 in(126 mm) | 71% | 2.5 |
| DecDecember | 53°F(12°C) | 33°F(1°C) | 6.2 in(158 mm) | 74% | 2.0 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
Places with a similar climate
All 20 places like Chattanooga →- 🇺🇸FlorenceAlabama, United States · Pop. 40k99%matchSame winter lowsSame summer highsChattanooga vs Florence →
- 🇺🇸RomeGeorgia, United States · Pop. 36k99%matchSame winter lowsSame summer highsChattanooga vs Rome →
- 🇺🇸HuntsvilleAlabama, United States · Pop. 215k99%matchSame winter lowsSame summer highsChattanooga vs Huntsville →
- 🇺🇸GadsdenAlabama, United States · Pop. 36k99%matchSame summer highsSame winter lowsChattanooga vs Gadsden →
- 🇺🇸JacksonTennessee, United States · Pop. 67k99%matchSame summer highsSame winter lowsChattanooga vs Jackson →