Chattanooga weather in October

In October, Chattanooga sees average daytime highs of 71°F and overnight lows near 51°F, with 3.3 in of rain across 7.1 wet days and about 11.1 hours of daylight. It is the 6th-warmest and 12th-wettest month of the year here.

Highs ease over the month, from about 76°F in the first days to 67°F by the end. The sky is clear or mostly clear about 47% of the time in October, and the air most often feels dry.

Daylight stretches from about 11 h 42 min at the start of October to 10 h 36 min by month's end. Set against the rest of the year, October is Chattanooga's 1st-clearest and 8th-windiest month. For the whole year in context, see Chattanooga's year-round climate.

Daytime high
71°
6th warmest
Overnight low
51°
7th coldest
Rainfall
3.3 in
7.1 wet days
Daylight
11 h 06 min
6:53 AM – 5:59 PM
Cloud cover
47%
1st clearest
Wind
5 mph
8th windiest
Solar energy
3.75 kWh/m²
Travel score
7.2
out of 10

Chattanooga is city in and county seat of Hamilton County, Tennessee, United States.

Density
484/km²
people per km²
Founded
1839

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 76°F in the first days to 67°F by the end.

A typical October day in Chattanooga reaches about 71°F in the afternoon and slips back to 51°F overnight — a 21°F spread between the day's warmth and the night's chill. On most days the high lands between 61°F and 81°F. Set against its neighbours, October runs about 10°F cooler than September and about 11°F warmer than November.

40°60°80°151015202531
Avg high (°F)Avg low (°F)
17757
27656
37656
47656
57555
67555
77555
87454
97454
107453
117353
127353
137352
147252
157251
167151
177150
187150
197049
207049
217049
226948
236948
246948
256847
266847
276747
286746
296746
306646
316645

How October really feels in Chattanooga

Once humidity and wind are folded in, October averages 0 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.

Days feeling ≥ 90°F
0
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

October sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Chattanooga weather by month

How October compares with the rest of the year at a glance. October is the 6th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan49° / 33°4.710.21.19.92.1
Feb54° / 35°4.410.10.910.73.1
Mar62° / 42°5.211.60.211.75.1
Apr71° / 50°4.710.3012.96.5
May78° / 59°4.010.6013.86.6
Jun85° / 67°3.812.9014.35.0
Jul87° / 70°4.113.2014.14.3
Aug87° / 69°3.311.3013.34.7
Sep82° / 63°3.98012.26.5
Oct71° / 51°3.37.1011.17.2
Nov60° / 41°4.28.7010.25.2
Dec52° / 35°5.110.30.49.72.7

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 47% of the time in October, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 13% of October, with mostly cloudy or overcast conditions the remaining 40%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16337
26337
36337
46337
56337
66337
76337
86139
96139
106139
116139
126139
136139
146139
156040
166040
176040
186040
196040
206040
216040
226040
236040
245842
255743
265743
275644
285545
295545
305545
315446

Chance of precipitation in October

Any precipitation

Chattanooga gets around 3.3 in of rain over 7.1 wet days in October, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 24% and peaks near 27% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
124
224
324
423
523
623
723
824
924
1024
1124
1225
1325
1424
1524
1624
1724
1823
1923
2023
2123
2223
2323
2423
2524
2624
2725
2825
2926
3027
3127

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

Most of October feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, October lands in the dry band about 61% of days. Sticky, muggy-or-worse air turns up on roughly 6% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1392125142
2402024132
3422024122
4442123112
5452122102
6472121101
748212091
851211981
952211881
1053211871
1155211761
1256211661
1358211551
1460201451
1562201341
1663201241
1766191130
1867191130
1968191030
207018930
217118920
227317820
237317820
247316830
257316830
267416730
277515730
287515730
297614730
307714630
317813630

Wind in October

Winds average 5 mph in October.

Across October, daily wind ranges from about 5 mph on the calmest days to 5 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 42 min at the start of October to 10 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 66 minutes over October. Sunrise moves from 6:41 AM to 7:07 AM, and sunset from 6:20 PM to 5:42 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.76:416:20
211.66:416:18
311.66:426:17
411.56:436:15
511.56:446:14
611.56:456:13
711.46:466:11
811.46:466:10
911.46:476:09
1011.36:486:07
1111.36:496:06
1211.26:506:04
1311.26:516:03
1411.26:516:02
1511.16:526:01
1611.16:535:59
1711.16:545:58
1811.06:555:57
1911.06:565:56
2011.06:575:54
2110.96:585:53
2210.96:595:52
2310.97:005:51
2410.87:005:50
2510.87:015:49
2610.87:025:48
2710.77:035:47
2810.77:045:45
2910.77:055:44
3010.67:065:43
3110.67:075:42

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 3.75 kWh/m².

For context, solar energy here swings from a low near 2.14 kWh/m² to a high of 6.05 kWh/m² in June across the year — October's 3.75 kWh/m² falls in the middle.

012345151015202531
Solar energy (kWh/m²)Level
14.2Bright
24.2Bright
34.1Bright
44.1Bright
54.1Bright
64.0Bright
74.0Bright
84.0Moderate
94.0Moderate
103.9Moderate
113.9Moderate
123.9Moderate
133.8Moderate
143.8Moderate
153.8Moderate
163.8Moderate
173.7Moderate
183.7Moderate
193.7Moderate
203.6Moderate
213.6Moderate
223.6Moderate
233.5Moderate
243.5Moderate
253.4Moderate
263.4Moderate
273.4Moderate
283.3Moderate
293.3Moderate
303.2Moderate
313.2Moderate
Planning a trip in October

Hazard calendar for Chattanooga

In seasonPeak

In October, Chattanooga sits inside its atlantic hurricane season. The full year is below, with each hazard's peak months called out.

Chattanooga sits in the Atlantic hurricane belt; the season peaks August–October.

Atlantic hurricane
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is October a good time to visit Chattanooga?

Our two travel scores rate October for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

7.2
Sightseeing
1st-best month of the year
4.9
Beach & pool
6th-best month of the year

October is one of the better times to visit Chattanooga for general sightseeing.

What to pack for Chattanooga in October

From October's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In October, Chattanooga sees daytime highs around 71°F and nights near 51°F. Little to plan around — just the basics. About 7 days see rain.

UV index in Chattanooga in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Chattanooga peaks around July 12 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highVery highHighModerateJul 12UV 10Dec 19UV 2
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar6High
Apr7High
May8Very high
Jun10Very high
Jul10Extreme
Aug8Very high
Sep7Very high
Oct5Moderate
Nov4Moderate
Dec2Moderate

Air quality in Chattanooga in October

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where October falls, not just the annual average.

Air quality in Chattanooga is worst in July — around 18 µg/m³ PM2.5 (moderate), about 3.0× the cleanest month (January, 6 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1618 µg/m³Jan 106 µg/m³
PM2.5 (µg/m³)Level
Jan6Good
Feb8Good
Mar11Good
Apr11Good
May13Moderate
Jun15Moderate
Jul18Moderate
Aug15Moderate
Sep12Good
Oct8Good
Nov8Good
Dec6Good
Location & terrain

Where is Chattanooga?

Chattanooga sits at 35.0°N, 85.3°W, 676 ft above sea level, in United States. The nearest listed city is East Chattanooga, 3.7 mi away.

Topography around Chattanooga

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Chattanooga.

Within 2 miles, the terrain around Chattanooga has only modest variations in elevation — a maximum elevation change of 404 ft around an average of 689 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 1,657 ft; within 50 miles, large variations in elevation — a maximum elevation change of 3,661 ft.

The land around Chattanooga is covered by artificial surfaces (44%) and trees (29%) within 2 miles, trees (71%) within 10 miles, and trees (76%) within 50 miles.

2 miles
404 ft
10 miles
1,657 ft
50 miles
3,661 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
October weather nearby: East Chattanooga 3.7 mi · East Ridge 3.7 mi · East Brainerd 9.9 mi · Cleveland 25 mi · Dalton 27 mi · Calhoun 43 mi · Rome 55 mi · Tullahoma 55 mi

United States travel facts

Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 100% of US
price level, 2025
GDP per capita
$90,027
2025
Happiness
6.8 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
5.8
per 100k, 2023
Road deaths
12.7
per 100k/yr, 2019
Income group
High
World Bank
Religion
Protestant 47%unaffiliated 23%Roman Catholic 21%Jewish 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Chattanooga (35.0456°, -85.3097°, elevation 676 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).