May Weather in Clemson, United States

Last updated: February 24, 2025

Clemson experiences a vibrant May, characterized by a maximum temperature reaching 34°C (94°F), while the average sits at a comfortable 21°C (70°F). This month brings with it a minimum temperature of 5°C (41°F), showcasing the range of warmth. Rainfall is significant, with 135 mm (5.3 in) measured over approximately 11 days, contributing to an 85% humidity level that adds a refreshing touch to the spring atmosphere. Whether basking in the warm sunshine or enjoying the occasional rain, May in Clemson offers a dynamic climate perfect for outdoor activities and appreciation of nature.

May Temperature in Clemson

In Clemson, United States, May heralds the arrival of warmer weather, showcasing a delightful range of temperatures that captivates both locals and visitors. As spring fully blossoms, the minimum temperature settles at a mild 5°C (41°F), offering a gentle embrace compared to the winter chill. The average temperature climbs to a comfortable 21°C (70°F), creating an ideal atmosphere for outdoor activities and gatherings. With daytime highs peaking at an exhilarating 34°C (94°F), May is a month where the transition from spring to summer is vividly felt. This month not only marks a significant rise in temperatures compared to earlier months but also sets the stage for the balmy, sun-soaked days that follow, reflecting a consistent upward trend in warmth as the year progresses.

May Weather in Clemson: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Clemson, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec444954617076807974655147
Data source: Temperature data for Clemson generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Clemson

In Clemson, United States, the month of May typically experiences a moderate increase in precipitation, amounting to 135 mm (5.3 in) over around 11 days of rainfall. This amount marks a slight rise from the previous April's 129 mm (5.1 in), suggesting a consistent trend of wet spring weather that nurtures the vibrant flora in the area. Compared to the drier months of summer, where precipitation drops significantly to around 84 mm (3.3 in) in June and July, May serves as a crucial bridge of moisture, ensuring that the local ecosystem remains lush as it heads toward the hotter months. Overall, May’s rainfall is indicative of the typical spring pattern in Clemson, where the bounty of water stimulates growth and prepares the land for the summer heat.

May Precipitation Trends in Clemson

The chart displays monthly precipitation patterns in Clemson, with values for each month alongside May's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec105152111129135848311113014293136
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Clemson

In Clemson, United States, May ushers in a subtle shift in humidity, maintaining a comfortable 85%, slightly lower than the slightly higher levels seen in the early spring months. This trend of high humidity persists from January through April, where readings hold steady at 86% before experiencing a minor dip. As summer approaches, the humidity levels continue to moderate, staying at 85% in June and easing to 83% by July. Interestingly, the late summer months introduce a more refreshing change, with August and September seeing a drop to 76%. Overall, while May’s humidity is indicative of the lingering warmth of spring, it naturally transitions into the drier months ahead, signaling the gradual shift towards summer.

May Average Humidity in Clemson

This chart illustrates the average monthly humidity levels in Clemson, with May's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how May's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec86%86%86%82%85%85%83%76%76%80%88%88%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Clemson

As spring transitions into summer, Clemson's UV Index reaches its peak in May, soaring to an extreme level of 11. This significant rise indicates an increased risk of harm from unprotected sun exposure, with a burn time as short as 10 minutes. Compared to earlier months, where the UV Index ranged from moderate to very high, May marks a critical shift that demands greater caution. During April, the UV Index was already high at 10, but the jump to 11 underscores the importance of sun safety practices as outdoor activities become more prevalent. As June and July follow with the same extreme rating, it's clear that residents and visitors should prioritize sun protection throughout this vibrant season. For more detailed insights on UV levels, visit Clemson UV Index.

Maximum UV Index Levels in Clemson for May

The chart shows the monthly maximum UV Index (UVI) for Clemson in May, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec46810111111109864
Data source: Clemson May UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

May Sunshine in Clemson

May shines brightly in Clemson, United States, welcoming an impressive 303 hours of sunshine that paves the way for the summer months ahead. This peak in sunlight follows a gradual increase from 168 hours in January, climbing steadily through the spring. The transition from April's 275 hours to May's exuberant display is a clear indicator of the warming days and lengthening evenings. As the sun continues to rise higher in the sky, June bursts forth with 320 hours of daylight, leading into a summer filled with vibrant outdoor activities. This pattern reveals a consistent trend of increasing sunshine, making Clemson a radiant destination as the year unfolds.

Monthly Sunshine Duration in Clemson: May Highlighted

The May sunshine duration represents the total number of hours Clemson experiences direct sunlight during the month of May, excluding cloudy or obstructed periods. This chart compares the sunshine duration of May with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec168h175h239h275h303h320h347h314h292h266h238h198h
Data source: Clemson May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Clemson During May

In Clemson, the likelihood of sunny weather in May sits at 35%, reflecting a modest drop compared to the preceding months, particularly April, which enjoys a more favorable 57% chance of sunshine. As the seasons transition, the trend indicates that May experiences less sunny weather than the spring peak, yet it still offers brighter days than some summer months like June at 31%. This pattern suggests that while May may not be the sunniest month, it still holds its own amid fluctuating chances, with the subsequent months, especially November rising to 61%, indicating a return to clearer skies later in the year. Overall, expect a mix of sun and clouds as spring gracefully hands over to summer in this charming southern locale.

Percentage of Sunny Days in May in Clemson

The chart illustrates the percentage of sunny days in Clemson throughout the year, with May highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Clemson experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec47%40%38%57%35%31%38%40%51%48%61%39%
Data source: Clemson May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Clemson in May

As spring transitions into summer in Clemson, United States, the daylight duration showcases a steady upward trend, especially noticeable in the vibrant month of May. With 13 hours of daylight, May mirrors the previous month yet heralds the approach of the longest days ahead. This period is marked by an increase from 10 hours in January and February, gradually climbing to 11 hours in March and 13 hours in April. Following May, daylight peaks in June and July with 14 hours, before tapering off again in the fall. This rhythm of light governs not only daily activities but also enriches the seasonal beauty, inviting outdoor adventures and community gatherings as nature comes alive.

Average Daylight Hours in Clemson for May

The chart illustrates the variation in daylight duration in Clemson throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 6m10h 56m11h 59m13h 4m13h 59m14h 25m14h 11m13h 22m12h 20m11h 15m10h 19m9h 51m
Data source: Clemson daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Clemson

In Clemson, United States, May greets residents with a gentle shift in wind patterns, featuring an average wind speed of 2.4 m/s (5 mph). This subtle breeze is a continuation of a generally calm spring, where wind speeds hovered around similar levels from January through April. Notably, May marks the point where a gradual decline in wind speed begins, as it transitions into the summer months, which typically see less blustery conditions. With a slight dip compared to April's 2.5 m/s, May's winds remain mild, fostering a serene atmosphere perfect for outdoor activities. As the days grow warmer and more humid in June, the gentle winds of May provide a refreshing prelude to the sultry summer ahead, maintaining a delicate balance between calm and comfort.

Average May Wind Speed in Clemson

The chart displays monthly wind speed patterns in Clemson, with values for each month shown alongside May's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how May's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.32.52.62.52.4 m/s2.01.81.61.82.02.22.4
Data source: Clemson May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Clemson Compares to Other Months

The weather in Clemson changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of May's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Clemson and find detailed weather information for every month.

May and January present stark contrasts in weather. In May, temperatures range from a mild 5°C (41°F) to a warm 34°C (94°F), with an average of 21°C (70°F), showcasing the transition into summer. This month is characterized by high humidity at 85% and significant rainfall, totaling 135 mm (5.3 in) over approximately 11 days. In contrast, January experiences colder temperatures, with a minimum of -11°C (12°F) and a maximum of 25°C (77°F), averaging just 7°C (44°F). While January sees less precipitation at 104 mm (4.1 in) over 9 days, the humidity remains similar at 86%. For those interested in the specifics of January weather, you can find more information here: Clemson weather in January.

May and February present contrasting weather patterns. In May, temperatures range from a minimum of 5°C (41°F) to a warm maximum of 34°C (94°F), with an average of 21°C (70°F). With 135 mm (5.3 in) of precipitation over 11 days, humidity remains high at 85%. In comparison, February experiences much cooler temperatures, varying from a minimum of -4°C (25°F) to a maximum of 26°C (79°F), averaging 10°C (50°F). This month sees slightly higher precipitation at 152 mm (6.0 in) spread over 14 days, with humidity at a similar level of 86%. For a detailed look at February weather, check out Clemson weather in February.

When comparing the weather in May and March, it's evident that May is considerably warmer. With average temperatures soaring to 21°C (70°F) and highs reaching up to 34°C (94°F), May offers a pleasant warmth that contrasts sharply with March's cooler averages of 12°C (54°F) and minimum temperatures dipping to -4°C (24°F). Precipitation is relatively similar, with May experiencing 135 mm (5.3 in) over 11 days and March having 111 mm (4.4 in) over 12 days. Humidity levels are also quite close, with May at 85% and March slightly lower at 86%. For a more detailed look at March weather, you can refer to Clemson weather in March.

In comparing the weather patterns of May and April, May experiences notably warmer temperatures, with averages reaching 21°C (70°F) and maximums soaring to 34°C (94°F), compared to April's cooler averages of 16°C (62°F) and a maximum of 30°C (86°F). Precipitation levels are slightly higher in May, totaling 135 mm (5.3 in) over 11 days, while April recorded 129 mm (5.1 in) over only 9 days. Humidity remains relatively high in both months, but May edges out with an average of 85% compared to April’s 82%. For further details on April's weather, you can check out Clemson weather in April.

May and June exhibit distinct weather patterns, with June generally being warmer than May. In May, temperatures range from a minimum of 5°C (41°F) to a maximum of 34°C (94°F), with an average of 21°C (70°F). May experiences a higher precipitation level of 135 mm (5.3 in) across 11 days. In contrast, June sees a minimum temperature of 12°C (54°F) and an average of 24°C (76°F), going up to a maximum of 34°C (93°F). The month's total precipitation decreases to 84 mm (3.3 in) over 14 days, yet humidity remains consistent at 85%. For more detailed information, check out Clemson weather in June.

In comparing the weather between May and July, we see notable differences in temperature and precipitation. May experiences a wider range of temperatures, from a chilly minimum of 5°C (41°F) to a warm maximum of 34°C (94°F), with an average temperature of 21°C (70°F). In contrast, July boasts a milder minimum of 16°C (60°F) and an average temperature of 27°C (80°F), peaking at 35°C (96°F). Although May is wetter, with 135 mm (5.3 in) of rainfall over 11 days compared to July's 83 mm (3.3 in) over 14 days, the humidity levels remain relatively similar, 85% in May versus 83% in July. For a detailed look at July's weather patterns, check out Clemson weather in July.

May and August exhibit distinct weather patterns that reflect the transition from spring to summer. In May, temperatures range from a cool 5°C (41°F) at night to a warm 34°C (94°F) during the day, with an average of 21°C (70°F). The month experiences significant rainfall, with 135 mm (5.3 in) falling over 11 days, contributing to high humidity levels of 85%. In contrast, August is generally warmer, with minimum temperatures of 16°C (60°F) and maximums reaching up to 36°C (97°F), resulting in an average of 26°C (79°F). Precipitation decreases slightly to 111 mm (4.4 in) over 12 days, while humidity drops to 76%. For a detailed look at weather specifics, check out Clemson weather in August.

May and September offer distinct climatic experiences, highlighting the transition of seasons. In May, temperatures range from a cool minimum of 5°C (41°F) to a warm maximum of 34°C (94°F), with an average of 21°C (70°F). The month sees considerable rainfall, averaging 135 mm (5.3 in) over about 11 days, coupled with high humidity levels at 85%. In contrast, September presents slightly warmer conditions, with minimum temperatures starting at 9°C (49°F) and maximums reaching 36°C (96°F), resulting in an average of 23°C (75°F). Precipitation remains similar at 130 mm (5.1 in) but occurs on just 9 days, and humidity decreases to 76%. For more detailed insights, you can check Clemson weather in September.

In comparing the weather of May and October, May generally offers warmer temperatures, with an average of 21°C (70°F) and a maximum reaching up to 34°C (94°F). In contrast, October presents cooler conditions, featuring an average temperature of 18°C (65°F) and a maximum of 37°C (98°F). Both months experience significant precipitation, with May receiving 135 mm (5.3 in) over 11 days and October slightly higher at 142 mm (5.6 in) over 10 days. Humidity levels are also notable, as May averages around 85%, while October is slightly less humid at 80%. For more details on October weather specifically, you can check Clemson weather in October.

May and November exhibit quite contrasting weather patterns. In May, temperatures can range from a chilly 5°C (41°F) at night to a warm 34°C (94°F) during the day, with an average of 21°C (70°F). The month is characterized by high humidity at 85% and significant precipitation, totaling 135 mm (5.3 in) over 11 days. In contrast, November experiences cooler temperatures, with a minimum of -4°C (24°F) and a maximum of 26°C (80°F), averaging 11°C (52°F). The precipitation is lower in November, at 93 mm (3.7 in) over 8 days, and the humidity remains slightly higher at 88%. For more detailed information about November weather, visit Clemson weather in November.

In May, the weather tends to be warm and pleasant, with average temperatures around 21°C (70°F), reaching highs of up to 34°C (94°F). The month experiences relatively high humidity at 85% and receives about 135 mm (5.3 in) of rain across 11 days. In contrast, December brings much cooler temperatures, with an average of 8°C (47°F) and lows that can drop to -7°C (20°F). Despite a similar rainfall total of 136 mm (5.4 in) over 9 days, the humidity rises slightly to 88%, making the atmosphere feel quite different. For more details, visit Clemson weather in December.

Compare Clemson's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Clemson

As May rolls into Clemson, it brings a delightful warmth that sets it apart from the preceding months. The transition from the cool spring air to summer heat is marked by an average temperature of 21°C, making outdoor activities more enjoyable. However, humidity levels soar to about 85%, giving the month a unique tropical feel. With 135 mm of rainfall spread over 11 days, May can be a bit unpredictable, yet these showers often refresh the lush landscapes and vibrant flora that characterize this beautiful region. This month truly encapsulates the essence of spring's end and summer's arrival, making it an exciting time to explore everything Clemson has to offer. For a deeper dive into the climate patterns, visit Clemson Climate.