Chattanooga, TN Weather & Climate Normals
What a normal year in Chattanooga actually looks like
On the 30-year record NOAA keeps for Chattanooga, TN, the comfort score comes out to 46/100, strongly seasonal: Comfortable weather is limited to a shorter window; summers, winters, or precipitation swing wide. Only 4 months a year land in the 55–75°F range this site treats as mild.
How much Chattanooga's weather actually swings
Average temperatures in Chattanooga run from 42°F in Jan up to 81°F in Jul, a 39.1°F seasonal swing, a middling gap by national standards.
Chattanooga, month by month
| Month | Avg high | Avg low | Precip | Snow |
|---|---|---|---|---|
| Jan | 51°F | 32°F | 5.02in | 1in |
| Feb | 56°F | 36°F | 5.03in | 1.2in |
| Mar | 64°F | 42°F | 5.34in | 1.1in |
| Apr | 74°F | 50°F | 4.87in | 0in |
| May | 81°F | 59°F | 3.94in | 0in |
| Jun | 88°F | 67°F | 4.18in | 0in |
| Jul | 91°F | 71°F | 5.08in | 0in |
| Aug | 90°F | 70°F | 3.67in | 0in |
| Sep | 84°F | 64°F | 4.23in | 0in |
| Oct | 74°F | 51°F | 3.59in | 0in |
| Nov | 62°F | 40°F | 4.8in | 0in |
| Dec | 53°F | 35°F | 5.25in | 0.3in |
If you're timing a visit, Apr, May, Sep, and Oct are Chattanooga's mildest stretch; if you're moving there, you should plan around Jul's heat and Jan's cold instead.
How wet Chattanooga actually gets
Over a typical year, Chattanooga sees about 55in of precipitation a year across roughly 123 days with measurable rain or snow, with 3.6in of snow a year.
Chattanooga against the rest of the country
Out of 4876 cities scored here, Chattanooga comes in at 2902; within TN alone it ranks 60 of 104. Population is about 191,496.
Checking the actual forecast
These figures come from Chattanooga Lovell Ap, TN US, the NOAA station 3.6 miles from Chattanooga, averaged over 30 years, not tomorrow's forecast.
More on how this is worked out
Why some cities show no snow or rain figure · What a 30-year climate normal actually is