Annual mean 15°C · wettest around February · prevailing wind W
Warmest
30.3 °C
Coldest
5.0 °C
Wettest
76%
Windiest
3.4 m/s
Prevailing
W
2.3 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Knoxville over the whole year is 15°C. July is the hottest month, with highs of about 30°C; January is the coldest, with lows of about 1°C. Knoxville has no sharply defined rainy season: the chance of rain on a given day runs from 67% in January, the driest month, to 71% in February, the wettest. Winds in Knoxville are highest in March, averaging 1.9 m/s (7 km/h), and lightest in August, at 0.9 m/s (3 km/h). The prevailing wind is from the W. The clearest skies in Knoxville come in June, when the sky is typically 30% covered; January is the cloudiest month, at 39%.
Month by month Knoxville climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
6°C
1°C
2°C
67%
39%
1.6 m/s
5
0
23
February
11°C
4°C
8°C
71%
36%
1.7 m/s
16
0
47
March
15°C
7°C
12°C
70%
32%
1.9 m/s
35
1
64
April
20°C
10°C
17°C
69%
32%
1.8 m/s
57
15
60
May
24°C
16°C
24°C
69%
36%
1.5 m/s
62
43
37
June
28°C
20°C
29°C
68%
30%
1.3 m/s
33
62
9
July
30°C
22°C
33°C
67%
31%
1.2 m/s
6
51
0
August
29°C
21°C
32°C
69%
32%
0.9 m/s
14
58
2
September
27°C
17°C
28°C
68%
31%
0.9 m/s
39
59
16
October
21°C
11°C
20°C
68%
31%
1.0 m/s
64
24
58
November
14°C
5°C
12°C
68%
32%
1.1 m/s
32
5
62
December
9°C
3°C
6°C
70%
38%
1.4 m/s
10
0
41
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Knoxville weather by season
Year round, Knoxville has days of about 6°C at their warmest in January, its coolest month, and 30°C in July, its warmest; the coolest hours of the day run from 1°C to 22°C through the year, and the average temperature over the year is 15°C around the clock. Rain is most likely around February and least likely around January. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Knoxville weather in winterDecember to February
High 9°CLow 3°CRain 70%
Winter in Knoxville has typical daily highs of about 9°C and lows of about 3°C, with a 70% chance of rain on a given day.
Knoxville weather in springMarch to May
High 19°CLow 11°CRain 69%
Spring in Knoxville has typical daily highs of about 19°C and lows of about 11°C, with a 69% chance of rain on a given day.
Knoxville weather in summerJune to August
High 29°CLow 21°CRain 68%
Summer in Knoxville has typical daily highs of about 29°C and lows of about 21°C, with a 68% chance of rain on a given day.
Knoxville weather in autumnSeptember to November
High 21°CLow 11°CRain 68%
Autumn in Knoxville has typical daily highs of about 21°C and lows of about 11°C, with a 68% chance of rain on a given day.
When is the rainy season in Knoxville?
Knoxville has no sharply defined rainy season: the chance of rain on a given day runs from 67% in January, the driest month, to 71% in February, the wettest.
What time of year is Knoxville windiest?
Winds in Knoxville are highest in March, averaging 1.9 m/s (7 km/h), and lightest in August, at 0.9 m/s (3 km/h). The prevailing wind is from the W.
What is the average temperature in Knoxville year round?
The average temperature in Knoxville over the whole year is 15°C. July is the hottest month, with highs of about 30°C; January is the coldest, with lows of about 1°C.