Annual mean 17°C · wettest around January · prevailing wind SW
Warmest
30.8 °C
Coldest
9.3 °C
Wettest
42%
Windiest
3.9 m/s
Prevailing
SW
3.0 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 Clemson over the whole year is 17°C. July is the hottest month, with highs of about 31°C; January is the coldest, with lows of about 3°C. Clemson has no sharply defined rainy season: the chance of rain on a given day runs from 34% in October, the driest month, to 41% in January, the wettest. Winds in Clemson are highest in March, averaging 2.5 m/s (9 km/h), and lightest in August, at 1.6 m/s (6 km/h). The prevailing wind is from the SW. The clearest skies in Clemson come in July, when the sky is typically 30% covered; February is the cloudiest month, at 43%.
Month by month Clemson 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
10°C
3°C
6°C
41%
37%
2.3 m/s
10
0
41
February
13°C
6°C
10°C
40%
43%
2.4 m/s
27
1
61
March
17°C
8°C
13°C
40%
37%
2.5 m/s
44
2
73
April
21°C
12°C
18°C
38%
31%
2.4 m/s
67
16
67
May
25°C
17°C
24°C
39%
39%
2.2 m/s
64
46
37
June
29°C
21°C
30°C
38%
34%
1.9 m/s
29
65
7
July
31°C
23°C
33°C
37%
30%
1.8 m/s
6
50
1
August
29°C
22°C
32°C
38%
38%
1.6 m/s
15
55
3
September
27°C
19°C
28°C
38%
36%
1.8 m/s
39
58
17
October
23°C
13°C
21°C
34%
31%
1.7 m/s
72
28
56
November
16°C
7°C
13°C
39%
35%
1.9 m/s
42
4
74
December
11°C
4°C
8°C
41%
42%
2.1 m/s
15
0
56
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 Clemson weather by season
Year round, Clemson has days of about 10°C at their warmest in January, its coolest month, and 31°C in July, its warmest; the coolest hours of the day run from 3°C to 23°C through the year, and the average temperature over the year is 17°C around the clock. Rain is most likely around January and least likely around October. 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.
Clemson weather in winterDecember to February
High 11°CLow 4°CRain 40%
Winter in Clemson has typical daily highs of about 11°C and lows of about 4°C, with a 40% chance of rain on a given day.
Clemson weather in springMarch to May
High 21°CLow 12°CRain 39%
Spring in Clemson has typical daily highs of about 21°C and lows of about 12°C, with a 39% chance of rain on a given day.
Clemson weather in summerJune to August
High 30°CLow 22°CRain 37%
Summer in Clemson has typical daily highs of about 30°C and lows of about 22°C, with a 37% chance of rain on a given day.
Clemson weather in autumnSeptember to November
High 22°CLow 13°CRain 37%
Autumn in Clemson has typical daily highs of about 22°C and lows of about 13°C, with a 37% chance of rain on a given day.
When is the rainy season in Clemson?
Clemson has no sharply defined rainy season: the chance of rain on a given day runs from 34% in October, the driest month, to 41% in January, the wettest.
What time of year is Clemson windiest?
Winds in Clemson are highest in March, averaging 2.5 m/s (9 km/h), and lightest in August, at 1.6 m/s (6 km/h). The prevailing wind is from the SW.
What is the average temperature in Clemson year round?
The average temperature in Clemson over the whole year is 17°C. July is the hottest month, with highs of about 31°C; January is the coldest, with lows of about 3°C.