Knoxville weather by month

Check out Knoxville weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.

Temperature in Knoxville (°F)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
46°F maximum daytime temperature in January in Knoxville46
52°F maximum daytime temperature in February in Knoxville52
61°F maximum daytime temperature in March in Knoxville61
72°F maximum daytime temperature in April in Knoxville72
77°F maximum daytime temperature in May in Knoxville77
84°F maximum daytime temperature in June in Knoxville84
88°F maximum daytime temperature in July in Knoxville88
88°F maximum daytime temperature in August in Knoxville88
81°F maximum daytime temperature in September in Knoxville81
72°F maximum daytime temperature in October in Knoxville72
59°F maximum daytime temperature in November in Knoxville59
50°F maximum daytime temperature in December in Knoxville50
Min temperature (night-time)
27°F minimum night-time temperature in January in Knoxville27
28°F minimum night-time temperature in February in Knoxville28
36°F minimum night-time temperature in March in Knoxville36
45°F minimum night-time temperature in April in Knoxville45
52°F minimum night-time temperature in May in Knoxville52
61°F minimum night-time temperature in June in Knoxville61
66°F minimum night-time temperature in July in Knoxville66
64°F minimum night-time temperature in August in Knoxville64
59°F minimum night-time temperature in September in Knoxville59
45°F minimum night-time temperature in October in Knoxville45
37°F minimum night-time temperature in November in Knoxville37
28°F minimum night-time temperature in December in Knoxville28
Heat & Humidity
No heat & humidity in January in Knoxville0
No heat & humidity in February in Knoxville0
No heat & humidity in March in Knoxville0
No heat & humidity in April in Knoxville0
Low heat & humidity in May in KnoxvilleL
Moderate heat & humidity in June in KnoxvilleM
High heat & humidity in July in KnoxvilleH
High heat & humidity in August in KnoxvilleH
Low heat & humidity in September in KnoxvilleL
No heat & humidity in October in Knoxville0
No heat & humidity in November in Knoxville0
No heat & humidity in December in Knoxville0

Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme

Sunshine & UV index in Knoxville

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daily hours of sunshine
Daily hours of daylight
10 hours of daylight per day in January in Knoxville10
11 hours of daylight per day in February in Knoxville11
12 hours of daylight per day in March in Knoxville12
13 hours of daylight per day in April in Knoxville13
14 hours of daylight per day in May in Knoxville14
15 hours of daylight per day in June in Knoxville15
14 hours of daylight per day in July in Knoxville14
13 hours of daylight per day in August in Knoxville13
12 hours of daylight per day in September in Knoxville12
11 hours of daylight per day in October in Knoxville11
10 hours of daylight per day in November in Knoxville10
10 hours of daylight per day in December in Knoxville10
UV Index (Maximum)
UV (maximum) index 3 (Moderate) in January in Knoxville3
UV (maximum) index 4 (Moderate) in February in Knoxville4
UV (maximum) index 6 (High) in March in Knoxville6
UV (maximum) index 8 (Very High) in April in Knoxville8
UV (maximum) index 9 (Very High) in May in Knoxville9
UV (maximum) index 10 (Very High) in June in Knoxville10
UV (maximum) index 10 (Very High) in July in Knoxville10
UV (maximum) index 9 (Very High) in August in Knoxville9
UV (maximum) index 8 (Very High) in September in Knoxville8
UV (maximum) index 5 (Moderate) in October in Knoxville5
UV (maximum) index 3 (Moderate) in November in Knoxville3
UV (maximum) index 2 (Low) in December in Knoxville2

Rainfall in Knoxville

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Number of days with some rain
12 days with some rainfall in January in Knoxville12
11 days with some rainfall in February in Knoxville11
12 days with some rainfall in March in Knoxville12
11 days with some rainfall in April in Knoxville11
11 days with some rainfall in May in Knoxville11
10 days with some rainfall in June in Knoxville10
12 days with some rainfall in July in Knoxville12
9 days with some rainfall in August in Knoxville9
8 days with some rainfall in September in Knoxville8
8 days with some rainfall in October in Knoxville8
10 days with some rainfall in November in Knoxville10
11 days with some rainfall in December in Knoxville11
Average monthly rainfall (inches)
4.3 inches monthly rainfall in January in Knoxville4.3
4.1 inches monthly rainfall in February in Knoxville4.1
5.2 inches monthly rainfall in March in Knoxville5.2
3.8 inches monthly rainfall in April in Knoxville3.8
4.3 inches monthly rainfall in May in Knoxville4.3
4.1 inches monthly rainfall in June in Knoxville4.1
4.8 inches monthly rainfall in July in Knoxville4.8
3.4 inches monthly rainfall in August in Knoxville3.4
3.2 inches monthly rainfall in September in Knoxville3.2
2.9 inches monthly rainfall in October in Knoxville2.9
3.9 inches monthly rainfall in November in Knoxville3.9
4.6 inches monthly rainfall in December in Knoxville4.6

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Knoxville by month

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

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The climate guide for Tennessee (Knoxville) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

What's the climate like in Knoxville?

Knoxville has a temperate climate with hot summers and some rainfall in all months.

Knoxville weather in January

Expect daytime maximum temperatures of 46°F in Knoxville, Tennessee in January based on long-term weather averages. There are 4 hours of sunshine per day on average with 12 days with some rainfall and typically 4.3 inches of rainfall in the month.

  • 46°F maximum daytime temperature in January in Knoxville46
    46°F max day temperature
  • 4 hours of sunshine per day
  • 12 days with some rainfall in January in Knoxville12
    12 days with some rainfall
  • 27°F minimum night-time temperature in January in Knoxville27
    27°F min night temperature
  • 10 hours of daylight per day in January in Knoxville10
    10 hours of daylight per day
  • No heat & humidity in January in Knoxville0
    No heat & humidity
  • 4.3 inches monthly rainfall in January in Knoxville4.3
    4.3 inches of monthly rainfall
  • UV (maximum) index 3 (Moderate) in January in Knoxville3
    3 (Moderate) UV index

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Knoxville weather in February

Expect daytime maximum temperatures of 52°F in Knoxville, Tennessee in February based on long-term weather averages. There are 5 hours of sunshine per day on average with 11 days with some rainfall and typically 4.1 inches of rainfall in the month.

  • 52°F maximum daytime temperature in February in Knoxville52
    52°F max day temperature
  • 5 hours of sunshine per day
  • 11 days with some rainfall in February in Knoxville11
    11 days with some rainfall
  • 28°F minimum night-time temperature in February in Knoxville28
    28°F min night temperature
  • 11 hours of daylight per day in February in Knoxville11
    11 hours of daylight per day
  • No heat & humidity in February in Knoxville0
    No heat & humidity
  • 4.1 inches monthly rainfall in February in Knoxville4.1
    4.1 inches of monthly rainfall
  • UV (maximum) index 4 (Moderate) in February in Knoxville4
    4 (Moderate) UV index

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Knoxville weather in March

Expect daytime maximum temperatures of 61°F in Knoxville, Tennessee in March based on long-term weather averages. There are 7 hours of sunshine per day on average with 12 days with some rainfall and typically 5.2 inches of rainfall in the month.

  • 61°F maximum daytime temperature in March in Knoxville61
    61°F max day temperature
  • 7 hours of sunshine per day
  • 12 days with some rainfall in March in Knoxville12
    12 days with some rainfall
  • 36°F minimum night-time temperature in March in Knoxville36
    36°F min night temperature
  • 12 hours of daylight per day in March in Knoxville12
    12 hours of daylight per day
  • No heat & humidity in March in Knoxville0
    No heat & humidity
  • 5.2 inches monthly rainfall in March in Knoxville5.2
    5.2 inches of monthly rainfall
  • UV (maximum) index 6 (High) in March in Knoxville6
    6 (High) UV index

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Knoxville weather in April

Expect daytime maximum temperatures of 72°F in Knoxville, Tennessee in April based on long-term weather averages. There are 8 hours of sunshine per day on average with 11 days with some rainfall and typically 3.8 inches of rainfall in the month.

  • 72°F maximum daytime temperature in April in Knoxville72
    72°F max day temperature
  • 8 hours of sunshine per day
  • 11 days with some rainfall in April in Knoxville11
    11 days with some rainfall
  • 45°F minimum night-time temperature in April in Knoxville45
    45°F min night temperature
  • 13 hours of daylight per day in April in Knoxville13
    13 hours of daylight per day
  • No heat & humidity in April in Knoxville0
    No heat & humidity
  • 3.8 inches monthly rainfall in April in Knoxville3.8
    3.8 inches of monthly rainfall
  • UV (maximum) index 8 (Very High) in April in Knoxville8
    8 (Very High) UV index

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Knoxville weather in May

Expect daytime maximum temperatures of 77°F in Knoxville, Tennessee in May based on long-term weather averages. There are 9 hours of sunshine per day on average with 11 days with some rainfall and typically 4.3 inches of rainfall in the month.

  • 77°F maximum daytime temperature in May in Knoxville77
    77°F max day temperature
  • 9 hours of sunshine per day
  • 11 days with some rainfall in May in Knoxville11
    11 days with some rainfall
  • 52°F minimum night-time temperature in May in Knoxville52
    52°F min night temperature
  • 14 hours of daylight per day in May in Knoxville14
    14 hours of daylight per day
  • Low heat & humidity in May in KnoxvilleL
    Low heat & humidity
  • 4.3 inches monthly rainfall in May in Knoxville4.3
    4.3 inches of monthly rainfall
  • UV (maximum) index 9 (Very High) in May in Knoxville9
    9 (Very High) UV index

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Knoxville weather in June

Expect daytime maximum temperatures of 84°F in Knoxville, Tennessee in June based on long-term weather averages. There are 10 hours of sunshine per day on average with 10 days with some rainfall and typically 4.1 inches of rainfall in the month.

  • 84°F maximum daytime temperature in June in Knoxville84
    84°F max day temperature
  • 10 hours of sunshine per day
  • 10 days with some rainfall in June in Knoxville10
    10 days with some rainfall
  • 61°F minimum night-time temperature in June in Knoxville61
    61°F min night temperature
  • 15 hours of daylight per day in June in Knoxville15
    15 hours of daylight per day
  • Moderate heat & humidity in June in KnoxvilleM
    Moderate heat & humidity
  • 4.1 inches monthly rainfall in June in Knoxville4.1
    4.1 inches of monthly rainfall
  • UV (maximum) index 10 (Very High) in June in Knoxville10
    10 (Very High) UV index

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Knoxville weather in July

Expect daytime maximum temperatures of 88°F in Knoxville, Tennessee in July and high heat and humidity based on long-term weather averages. There are 9 hours of sunshine per day on average with 12 days with some rainfall and typically 4.8 inches of rainfall in the month.

  • 88°F maximum daytime temperature in July in Knoxville88
    88°F max day temperature
  • 9 hours of sunshine per day
  • 12 days with some rainfall in July in Knoxville12
    12 days with some rainfall
  • 66°F minimum night-time temperature in July in Knoxville66
    66°F min night temperature
  • 14 hours of daylight per day in July in Knoxville14
    14 hours of daylight per day
  • High heat & humidity in July in KnoxvilleH
    High heat & humidity
  • 4.8 inches monthly rainfall in July in Knoxville4.8
    4.8 inches of monthly rainfall
  • UV (maximum) index 10 (Very High) in July in Knoxville10
    10 (Very High) UV index

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Knoxville weather in August

Expect daytime maximum temperatures of 88°F in Knoxville, Tennessee in August and high heat and humidity based on long-term weather averages. There are 9 hours of sunshine per day on average with typically 3.4 inches of rainfall in the month.

  • 88°F maximum daytime temperature in August in Knoxville88
    88°F max day temperature
  • 9 hours of sunshine per day
  • 9 days with some rainfall in August in Knoxville9
    9 days with some rainfall
  • 64°F minimum night-time temperature in August in Knoxville64
    64°F min night temperature
  • 13 hours of daylight per day in August in Knoxville13
    13 hours of daylight per day
  • High heat & humidity in August in KnoxvilleH
    High heat & humidity
  • 3.4 inches monthly rainfall in August in Knoxville3.4
    3.4 inches of monthly rainfall
  • UV (maximum) index 9 (Very High) in August in Knoxville9
    9 (Very High) UV index

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Knoxville weather in September

Expect daytime maximum temperatures of 81°F in Knoxville, Tennessee in September based on long-term weather averages. There are 8 hours of sunshine per day on average with typically 3.2 inches of rainfall in the month.

  • 81°F maximum daytime temperature in September in Knoxville81
    81°F max day temperature
  • 8 hours of sunshine per day
  • 8 days with some rainfall in September in Knoxville8
    8 days with some rainfall
  • 59°F minimum night-time temperature in September in Knoxville59
    59°F min night temperature
  • 12 hours of daylight per day in September in Knoxville12
    12 hours of daylight per day
  • Low heat & humidity in September in KnoxvilleL
    Low heat & humidity
  • 3.2 inches monthly rainfall in September in Knoxville3.2
    3.2 inches of monthly rainfall
  • UV (maximum) index 8 (Very High) in September in Knoxville8
    8 (Very High) UV index

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Knoxville weather in October

Expect daytime maximum temperatures of 72°F in Knoxville, Tennessee in October based on long-term weather averages. There are 7 hours of sunshine per day on average with typically 2.9 inches of rainfall in the month.

  • 72°F maximum daytime temperature in October in Knoxville72
    72°F max day temperature
  • 7 hours of sunshine per day
  • 8 days with some rainfall in October in Knoxville8
    8 days with some rainfall
  • 45°F minimum night-time temperature in October in Knoxville45
    45°F min night temperature
  • 11 hours of daylight per day in October in Knoxville11
    11 hours of daylight per day
  • No heat & humidity in October in Knoxville0
    No heat & humidity
  • 2.9 inches monthly rainfall in October in Knoxville2.9
    2.9 inches of monthly rainfall
  • UV (maximum) index 5 (Moderate) in October in Knoxville5
    5 (Moderate) UV index

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Knoxville weather in November

Expect daytime maximum temperatures of 59°F in Knoxville, Tennessee in November based on long-term weather averages. There are 5 hours of sunshine per day on average with 10 days with some rainfall and typically 3.9 inches of rainfall in the month.

  • 59°F maximum daytime temperature in November in Knoxville59
    59°F max day temperature
  • 5 hours of sunshine per day
  • 10 days with some rainfall in November in Knoxville10
    10 days with some rainfall
  • 37°F minimum night-time temperature in November in Knoxville37
    37°F min night temperature
  • 10 hours of daylight per day in November in Knoxville10
    10 hours of daylight per day
  • No heat & humidity in November in Knoxville0
    No heat & humidity
  • 3.9 inches monthly rainfall in November in Knoxville3.9
    3.9 inches of monthly rainfall
  • UV (maximum) index 3 (Moderate) in November in Knoxville3
    3 (Moderate) UV index

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Knoxville weather in December

Expect daytime maximum temperatures of 50°F in Knoxville, Tennessee in December based on long-term weather averages. There are 4 hours of sunshine per day on average with 11 days with some rainfall and typically 4.6 inches of rainfall in the month.

  • 50°F maximum daytime temperature in December in Knoxville50
    50°F max day temperature
  • 4 hours of sunshine per day
  • 11 days with some rainfall in December in Knoxville11
    11 days with some rainfall
  • 28°F minimum night-time temperature in December in Knoxville28
    28°F min night temperature
  • 10 hours of daylight per day in December in Knoxville10
    10 hours of daylight per day
  • No heat & humidity in December in Knoxville0
    No heat & humidity
  • 4.6 inches monthly rainfall in December in Knoxville4.6
    4.6 inches of monthly rainfall
  • UV (maximum) index 2 (Low) in December in Knoxville2
    2 (Low) UV index

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Knoxville by month

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The climate guide for Tennessee (Knoxville) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Compare Knoxville weather with the UK

The weather chart below compares the average monthly maximum daytime temperature for Knoxville, Tennessee, USA and the UK (London).

Maximum daytime temperature (°F)

Knoxville, Tennessee, USA
UK (London)
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Metric (°C)  |  Imperial (°F)

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