May weather forecast
Old Town, SC

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Weather in May

The last month of the spring, May, is also a moderately hot month in Old Town, South Carolina, with an average temperature varying between 80.8°F (27.1°C) and 66.7°F (19.3°C).

Temperature

A slight uplift in the average high-temperature marks May, adjusting from April's 74.1°F (23.4°C) to a still warm 80.8°F (27.1°C). Old Town's nighttime temperature during May is consistently averaged at a comfortable 66.7°F (19.3°C).

Heat index

May's heat index is appraised at 84.2°F (29°C). Enduring exposure and ongoing activity could cause a sense of fatigue and subsequent heat cramps.
The metrics for the heat index are tailored for both shady environments and light winds. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are largely significant for babies and toddlers. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.

Humidity

The average relative humidity in May in Old Town is 75%.

Rainfall

In Old Town, during May, the rain falls for 13.4 days and regularly aggregates up to 1.42" (36mm) of precipitation. In Old Town, during the entire year, the rain falls for 154.4 days and collects up to 23.43" (595mm) of precipitation.

Snowfall

In Old Town, snow does not fall in March through November.

Daylight

In Old Town, South Carolina, the average length of the day in May is 13h and 52min.
On the first day of the month, sunrise is at 6:31 am and sunset at 8:02 pm. On the last day of May, in Old Town, sunrise is at 6:12 am and sunset at 8:22 pm EDT.

Sunshine

In May, the average sunshine in Old Town, South Carolina, is 10.4h.

UV index

May through August, with an average maximum UV index of 7, are months with the highest UV index in Old Town. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for average individuals.
Note: In May, a daily UV index of 7 turns into the following recommendations:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
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Frequently asked questions

What is the average May temperature in Old Town?

The average high-temperature, in May, in Old Town, is 80.8°F (27.1°C), while the average low-temperature is 66.7°F (19.3°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines relative humidity and air temperature, in May is appraised at 84.2°F (29°C).

What is the average humidity in May in Old Town?

In Old Town, the average relative humidity in May is 75%.

How many days does it rain in May in Old Town?

In Old Town, South Carolina, in May, it is raining for 13.4 days, with typically 1.42" (36mm) of accumulated precipitation.

When it does not snow in Old Town?

March through November are months without snowfall.

What is the average length of the day in May in Old Town?

In Old Town, the average day length in May is 13h and 52min.

When is the sunrise / sunset in May in Old Town?

In May, on the first day of the month, sunrise is at 6:31 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 6:12 am and sunset at 8:22 pm EDT.

How long on average sun shines in May in Old Town?

The average sunshine duration in May is 10.4h.

What are the months with the highest UV index in Old Town?

The months with the highest UV index in Old Town are May through August, with an average maximum UV index of 7.

What is the UV index reading in May in Old Town?

In May, the average daily maximum UV index in Old Town is 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Old Town, SC

Average temperature in May - Old Town, SC
  • Average high temperature in May: 80.8°F

The warmest month (with the highest average high temperature) is July (89.6°F).
The month with the lowest average high temperature is January (56.8°F).

  • Average low temperature in May: 66.7°F

The month with the highest average low temperature is July (76.5°F).
The coldest month (with the lowest average low temperature) is January (42.8°F).

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Average pressure in May
Old Town, SC

Average pressure in May - Old Town, SC
  • Average pressure in May: 30.03"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

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Average wind speed in May
Old Town, SC

Average wind speed in May - Old Town, SC
  • Average wind speed in May: 7.5mph

The windiest month (with the highest average wind speed) is April (8.3mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

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Average humidity in May
Old Town, SC

Average humidity in May - Old Town, SC
  • Average humidity in May: 75%

The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is March (72%).

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Average rainfall in May
Old Town, SC

Average rainfall in May - Old Town, SC
  • Average rainfall in May: 1.42"

The wettest month (with the highest rainfall) is August (4.29").
The driest month (with the least rainfall) is January (0.67").

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Average rainfall days in May
Old Town, SC

Average rainfall days in May - Old Town, SC
  • Average rainfall days in May: 13.4 days

The month with the highest number of rainy days is August (22.7 days).
The month with the least rainy days is November (6.9 days).

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Average snowfall days in May
Old Town, SC

Average snowfall days in May - Old Town, SC
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is December (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).

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Average daylight in May /
Average sunshine in May
Old Town, SC

Average daylight in May / Average sunshine in May - Old Town, SC
  • Average daylight in May: 13h and 5min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in May: 10h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).

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Average sunshine days in May
Old Town, SC

Average sunshine days in May - Old Town, SC
  • Average sunshine days in May: 15.8 days

The month with the most sunshine days is November (20.4 days).
The month with the least sunshine days is August (6.1 days).

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Average UV index in May
Old Town, SC

Average UV index in May - Old Town, SC
  • Average UV index in May: 7

The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 3).

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Average cloud cover in May
Old Town, SC

Average cloud cover in May - Old Town, SC
  • Average cloud cover in May: 29

The month with the most cloud cover is December (Cloud cover 40).
The months with the least cloud cover are June and July (Cloud cover 26).

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Average visibility in May
Old Town, SC

Average visibility in May - Old Town, SC
  • Average visibility in May: 6mi

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).

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Old Town, South Carolina, USA

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