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Contents
- The climate of Clemson
- The best time to visit Clemson
- The worst time to visit Clemson
- Spring weather in Clemson
- Summer weather in Clemson
- Autumn weather in Clemson
- Winter weather in Clemson
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
The climate of Clemson
Designated within the climatological realm of the Humid Subtropical climate, according to the Köppen climate classification, Clemson, South Carolina occupies a geographical position that is subject to no dry season. Over the course of the year, the climate in Clemson witnesses a wide spectrum of weather conditions.
Monthly average temperatures fluctuate from 33.4°F (0.8°C) to 89.6°F (32°C), revealing Clemson's variation from cool winters to hot summers. A feature of the Clemson climate reveals average high temperatures rising steadily from 49.6°F (9.8°C) in January to a peak of 89.6°F (32°C) in July. This trend showcases the progressing heat intensity towards the middle of the year. Clemson's humidity level also showcases a subtle annual variation with the highest relative humidity seen in January and December at 77% and lowest in July with 70%.
Precipitation in Clemson is distributed evenly throughout the year with the highest volumes recorded in December with 4.21" (107mm), and the lowest seen in September with 1.73" (44mm). It is important to note that a total number of rainfall days does not necessarily correspond with the volume of rainfall. For example, July has 17.8 rainy days, the highest for the year, but the volume of rain in this month of 2.6" (66mm) does not surpass that of December.
Sunshine hours range from 5.4 hours per day in December to 11.1 hours in July. The wind speed varies moderately throughout the year, from a mild 4.1mph (6.6km/h) in August to 6.3mph (10.1km/h) in February, adding another layer of dynamism to Clemson's weather profile.
Monthly average temperatures fluctuate from 33.4°F (0.8°C) to 89.6°F (32°C), revealing Clemson's variation from cool winters to hot summers. A feature of the Clemson climate reveals average high temperatures rising steadily from 49.6°F (9.8°C) in January to a peak of 89.6°F (32°C) in July. This trend showcases the progressing heat intensity towards the middle of the year. Clemson's humidity level also showcases a subtle annual variation with the highest relative humidity seen in January and December at 77% and lowest in July with 70%.
Precipitation in Clemson is distributed evenly throughout the year with the highest volumes recorded in December with 4.21" (107mm), and the lowest seen in September with 1.73" (44mm). It is important to note that a total number of rainfall days does not necessarily correspond with the volume of rainfall. For example, July has 17.8 rainy days, the highest for the year, but the volume of rain in this month of 2.6" (66mm) does not surpass that of December.
Sunshine hours range from 5.4 hours per day in December to 11.1 hours in July. The wind speed varies moderately throughout the year, from a mild 4.1mph (6.6km/h) in August to 6.3mph (10.1km/h) in February, adding another layer of dynamism to Clemson's weather profile.
The best time to visit Clemson
Considering the climatic conditions, the period from late April to October stands as an advantageous time frame to visit Clemson. During this span, daytime temperatures range from 70.7°F (21.5°C) to 89.6°F (32°C), creating ample opportunity for outdoor activities. With the peak of sunshine hours reaching 14.2 hours per day in July and a UV index of 6 from May to August, it encourages sun seekers and beach enthusiasts. Despite an increased chance of rainfall from 2.76" (70mm) to 3.74" (95mm), the humidity level drops to an average of 72% from the 75% seen in the early part of the year, making for a more comfortable experience.
The worst time to visit Clemson
Venturing to Clemson during the months of January and February might not be advisable for weather-sensitive visitors. During this span, temperatures can dip as low as 33.4°F (0.8°C) and 37°F (2.8°C), respectively. Compounding the cooler temperatures, these months also see the least daylight hours at 10.1 hours and 11 hours correspondingly, reducing sightseeing opportunities. Furthermore, the relative humidity of 73% and 75%, combined with the reduced visibility of 6 miles, might diminish the overall enjoyment of outdoor activities during this time frame.
Spring weather in Clemson
Spring in Clemson lasts from March to May with temperatures ranging from 42.4°F (5.8°C) to 78.8°F (26°C). The period offers moderate weather conditions with rainfall averaging 3.47" (88mm) and humidity around 75%. With daylight hours extending from 12 hours to 14 hours, the season encourages outdoor springs blooms, making Clemson in spring a charming spectacle to behold.
Summer weather in Clemson
Clemson’s summer span from June to August is characterized by temperature ranges from 64.9°F (18.3°C) to 89.6°F (32°C). This season attracts maximum sunlight with up to 14.5 hours per day in brightness. Increased heat is well-managed with a slight decrease in humidity to a comfortable 70% to 72%. Visitors during this time can expect the warmest conditions Clemson has to offer.
Autumn weather in Clemson
The autumnal months of September through November in Clemson bring a decline in temperature from 62.1°F (16.7°C) to 41.9°F (5.5°C). Rainfall generally decreases to an average of 2.65" (67mm). Average daylight hours over this period correspondingly reduce from 12.4 hours to 10.4 hours. Therefore, Autumn poses as a transition period from the intense heat of summer to the milder conditions of winter.
Winter weather in Clemson
Winter in Clemson, prevalent from December to February, unfolds with the lowest temperature dropping down to 33.4°F (0.8°C). Despite the cooler conditions, snowfall is minimal with just 2.05" (52mm) registered in December and a modest 0.87" (22mm) in January. The highest rainfall is seen in December with 4.21" (107mm), making it the wettest month of the year. Consequently, winter's cooler conditions and increased rainfall make it a quiet time for tourism.
Weather in January
Begin the year in Clemson, South Carolina with January's distinctly cool climate. Compared to February's slightly warmer weather, daily maximum temperatures swing around 49.6°F (9.8°C) whilst night temperature drops as low as 33.4°F (0.8°C). Weather in January »
Weather in February
February signals in subtle climate progression, temperatures showing a slight increase from January's wintery chill. A blend of cool and moist conditions with the relative humidity at 75%, typically characterizes this month. Dominant characteristics are greater daylight hours, higher relative humidity as well as the appearance of fresh greenery in landscapes and gardens. Weather in February »
Weather in March
As spring unveils its magic in March, temperatures showcase an upward trend from February's lows, with the highest recorded at 61.2°F (16.2°C). Daylight hours begin to extend, offering sunnier slots for outdoor activities and exploration. Weather in March »
Weather in April
April marks the full swing of spring in Clemson city. Warm weather really begins to hold steady compared to the mercurial temperatures of March, with peaks of 70.7°F (21.5°C) being common. This month offers typically pleasant weather, perfect for spring festivals and other outdoor activities. Weather in April »
Weather in May
As spring transitions into summer in May, temperatures rise, peaking at 78.8°F (26°C). However, the heat remains manageable compared to the extreme heat prevalent between June and August. The warm weather finds expression in the blooming of summer flowers and the vibrant greenery that surrounds the city. Weather in May »
Weather in June
June is typically the gateway into summer in Clemson, South Carolina. The temperature reaches notable highs of 86.5°F (30.3°C), making it a warmer month than May. One can anticipate long sunny days and an extended period of daylight. Weather in June »
Weather in July
July comes packed with the thick of summer, extending the high temperatures from June, with temperatures reaching 89.6°F (32°C). The summer heat, however, does not preclude the city of Clemson from being lively and vibrant. Annual celebrations, concerts, and fireworks during Independence Day typify the festive mood in the city. Weather in July »
Weather in August
Weather patterns in August remain similar to July with a slight dip in temperature in Clemson. The vibrant summer lifestyle persists, characterized by outdoor parties, festivals, and verdant landscapes. Sightseers can revel in the city's sunny disposition and warm weather, thus allowing for a picturesque spectacle of Clemson. Weather in August »
Weather in September
September marks the onset of fall in Clemson, South Carolina, offering a respite from the heights of summer with its highs of 82.8°F (28.2°C). Landscapes begin to convert into colorful canvases filled with hues of orange, red, and yellow. Weather in September »
Weather in October
October's weather can be classified as quintessential fall in Clemson, showcasing a dramatic decrease in temperatures, plummeting from September's to around 71.6°F (22°C). This time is characterized by fewer daylight hours and the sky assuming an aesthetic charm with radiant sunsets. Weather in October »
Weather in November
November ushers in the winter season in Clemson with conspicuous changes from October's weather patterns. The splendid fall-colored foliage starts shedding, temperatures falling notably to 59.9°F (15.5°C). Shortened daylight hours signify the upcoming winter solstice. Weather in November »
Weather in December
December marks winter at full throttle in Clemson, the temperature dropping substantially from November's average to around 52.7°F (11.5°C). Winter translates into cooler days, fewer sunshine hours, and the inclusion of warmer clothing in one's wardrobe. Weather in December »
Updated: Jul 6, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month in Clemson?
Clemson, South Carolina, witnesses the coldest weather in January, with temperatures averaging a high of 49.6°F (9.8°C) and a low of 33.4°F (0.8°C).
How many days does it rain?
Throughout the year, there are 164.1 rainfall days, and 37.09" (942mm) of precipitation is accumulated.
When does it snow?
January through March, November and December are months with snowfall.
How many days does it snow?
In Clemson, during the entire year, snow falls for 3.6 days and aggregates up to 4.25" (108mm) of snow.
What are the months with the lowest UV index?
The months with the lowest UV index are January and December, with an average maximum UV index of 2.
When is Daylight Saving Time (DST)?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.
When it does not snow?
April through October are months without snowfall.
What is the month with the highest UV index?
May through August, with an average maximum UV index of 6, are months with the highest UV index.
When are the longest days?
With an average of 14h and 24min of daylight, June has the longest days of the year in Clemson.
What is the warmest month?
In Clemson, temperatures reach their average annual highs in July, measuring 89.6°F (32°C) and a minimum average of 68°F (20°C).
What is the least humid month?
With an average relative humidity of 70%, July is the least humid month.
What month has the most sunshine?
The month with the most sunshine is July, with an average of 11.1h of sunshine.
What is the driest month?
The month with the least rainfall in Clemson, South Carolina, is September, when the rain falls for 12.5 days and typically collects 1.73" (44mm) of precipitation.
What is the most humid month?
The most humid month is December, with an average relative humidity of 77%.
What is the wettest month?
December is the month with the most rainfall. Rain falls for 11.8 days and accumulates 4.21" (107mm) of precipitation.
What is the snowiest month?
The month with the most snowfall is December, when snow falls for 0.7 days and typically aggregates up to 2.05" (52mm) of snow.
What is the month with the shortest days?
The month with the shortest days in Clemson is December, with an average of 9h and 54min of daylight.
What is the month with the least sunshine?
December has the least sunshine of the year, with an average of 5.4h of sunshine.
Average temperature
Clemson, SC
The warmest month (with the highest average high temperature) is July (89.6°F).
The month with the lowest average high temperature is January (49.6°F).
The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (33.4°F).
Average pressure
Clemson, SC
- Average pressure in January:
30.15"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
30.01"Hg - Average pressure in May:
30.03"Hg - Average pressure in June:
29.99"Hg
- Average pressure in July:
30.01"Hg - Average pressure in August:
30.01"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30.06"Hg - Average pressure in November:
30.15"Hg - Average pressure in December:
30.14"Hg
The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed
Clemson, SC
- Average wind speed in January:
6.1mph - Average wind speed in February:
6.3mph - Average wind speed in March:
6.1mph - Average wind speed in April:
6.2mph - Average wind speed in May:
5.2mph - Average wind speed in June:
4.6mph
- Average wind speed in July:
4.4mph - Average wind speed in August:
4.1mph - Average wind speed in September:
4.6mph - Average wind speed in October:
5.3mph - Average wind speed in November:
5.3mph - Average wind speed in December:
5.6mph
The windiest month (with the highest average wind speed) is February (6.3mph).
The calmest month (with the lowest average wind speed) is August (4.1mph).
Average humidity
Clemson, SC
The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is July (70%).
Average rainfall
Clemson, SC
- Average rainfall in January:
3.23" - Average rainfall in February:
3.35" - Average rainfall in March:
2.95" - Average rainfall in April:
3.74" - Average rainfall in May:
3.43" - Average rainfall in June:
2.76"
- Average rainfall in July:
2.6" - Average rainfall in August:
3.39" - Average rainfall in September:
1.73" - Average rainfall in October:
2.56" - Average rainfall in November:
3.15" - Average rainfall in December:
4.21"
The wettest month (with the highest rainfall) is December (4.21").
The driest month (with the least rainfall) is September (1.73").
Average rainfall days
Clemson, SC
- Average rainfall days in January:
11.9 days - Average rainfall days in February:
12.7 days - Average rainfall days in March:
14.9 days - Average rainfall days in April:
13.9 days - Average rainfall days in May:
16 days - Average rainfall days in June:
16.5 days
- Average rainfall days in July:
17.8 days - Average rainfall days in August:
16.8 days - Average rainfall days in September:
12.5 days - Average rainfall days in October:
9.5 days - Average rainfall days in November:
9.8 days - Average rainfall days in December:
11.8 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is October (9.5 days).
Average snowfall
Clemson, SC
The month with the highest snowfall is December (2.05").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Clemson, SC
- Average snowfall days in January:
1.4 days - Average snowfall days in February:
1.1 days - Average snowfall days in March:
0.3 days - Average snowfall days in April:
0 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0.1 days - Average snowfall days in December:
0.7 days
The month with the highest number of snowfall days is January (1.4 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Clemson, SC
- Average daylight in January:
10h and 1min - Average daylight in February:
11h and 0min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - Average daylight in May:
14h and 0min - Average daylight in June:
14h and 2min
- Average daylight in July:
14h and 1min - Average daylight in August:
13h and 2min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 2min - Average daylight in November:
10h and 2min - Average daylight in December:
9h and 5min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in January:
5h and 4min - Average sunshine in February:
7h and 0min - Average sunshine in March:
7h and 2min - Average sunshine in April:
8h and 5min - Average sunshine in May:
10h and 0min - Average sunshine in June:
10h and 5min
- Average sunshine in July:
11h and 1min - Average sunshine in August:
10h and 2min - Average sunshine in September:
8h and 4min - Average sunshine in October:
7h and 0min - Average sunshine in November:
6h and 0min - Average sunshine in December:
5h and 2min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days
Clemson, SC
- Average sunshine days in January:
17.4 days - Average sunshine days in February:
13.4 days - Average sunshine days in March:
14.6 days - Average sunshine days in April:
14.7 days - Average sunshine days in May:
12.6 days - Average sunshine days in June:
11.4 days
- Average sunshine days in July:
10.5 days - Average sunshine days in August:
11.6 days - Average sunshine days in September:
15.3 days - Average sunshine days in October:
20.5 days - Average sunshine days in November:
19 days - Average sunshine days in December:
17.5 days
The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is July (10.5 days).
Average UV index
Clemson, SC
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover
Clemson, SC
The months with the most cloud cover are February and December (Cloud cover 41).
The months with the least cloud cover are June and July (Cloud cover 27).
Average visibility
Clemson, SC
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Clemson, South Carolina, USA
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