May weather forecast
Mountville, SC

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Weather in May

May, the last month of the spring in Mountville, is a warm month, with temperature in the range of an average low of 60.4°F (15.8°C) and an average high of 80.8°F (27.1°C).

Temperature

As Mountville enters May, the average high-temperature marginally increases from the an agreeable 73°F (22.8°C) of April to a warm 80.8°F (27.1°C). Mountville in May experiences a low-temperature average of 60.4°F (15.8°C).

Heat index

The heat index value during May is calculated to be 84.2°F (29°C). One might feel worn out with persistent exposure and activity, resulting in heat cramps.
Heat index data is primarily for areas with shade and subjected to light winds. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a metric representing the sensation of warmth when air temperature and moisture come together. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.

Humidity

The average relative humidity in May is 75%.

Rainfall

In May, in Mountville, the rain falls for 14.5 days. Throughout May, 2.99" (76mm) of precipitation is accumulated. Throughout the year, there are 150.3 rainfall days, and 31.85" (809mm) of precipitation is accumulated.

Snowfall

In Mountville, snow does not fall in April through November.

Daylight

In Mountville, the average length of the day in May is 13h and 58min.
On the first day of May, sunrise is at 6:37 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 6:16 am and sunset at 8:34 pm EDT.

Sunshine

In May, the average sunshine is 9.6h.

UV index

The average daily maximum UV index in May in Mountville is 6. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the average person.
Note: The average daily UV index of 6 in May transforms into the following instructions:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
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Frequently asked questions

What is the usual temperature for Mountville in May?

In May, in Mountville, the average high-temperature is 80.8°F (27.1°C), and the average low-temperature is 60.4°F (15.8°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines relative humidity and air temperature, in May is calculated to be 84.2°F (29°C).

What is the average humidity in May in Mountville?

In Mountville, South Carolina, the average relative humidity in May is 75%.

How many days does it rain in May in Mountville?

In Mountville, in May, during 14.5 rainfall days, 2.99" (76mm) of precipitation is typically accumulated.

When it does not snow in Mountville?

In Mountville, snow does not fall in April through November.

What is the average length of the day in May in Mountville?

In May, the average day length in Mountville, South Carolina, is 13h and 58min.

When is the sunrise / sunset in May in Mountville?

In May, on the first day of the month, sunrise is at 6:37 am and sunset at 8:12 pm. On the last day of the month, in Mountville, South Carolina, sunrise is at 6:16 am and sunset at 8:34 pm EDT.

How long on average sun shines in May in Mountville?

The average sunshine duration in May is 9.6h.

What is the UV index reading in May in Mountville?

In Mountville, the average daily maximum UV index in May is 6. A UV Index reading of 6 to 7 represents a high health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Mountville, SC

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

The warmest month (with the highest average high temperature) is July (91.8°F).
The month with the lowest average high temperature is January (51.3°F).

  • Average low temperature in May: 60.4°F

The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is January (34.7°F).

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Average pressure in May
Mountville, SC

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

The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

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Average wind speed in May
Mountville, SC

Average wind speed in May - Mountville, SC
  • Average wind speed in May: 6mph

The windiest month (with the highest average wind speed) is April (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).

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Average humidity in May
Mountville, SC

Average humidity in May - Mountville, SC
  • Average humidity in May: 75%

The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is July (70%).

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Average rainfall in May
Mountville, SC

Average rainfall in May - Mountville, SC
  • Average rainfall in May: 2.99"

The wettest month (with the highest rainfall) is December (3.54").
The driest month (with the least rainfall) is September (1.69").

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Average rainfall days in May
Mountville, SC

Average rainfall days in May - Mountville, SC
  • Average rainfall days in May: 14.5 days

The month with the highest number of rainy days is August (16.5 days).
The months with the least rainy days are October and November (9 days).

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Average snowfall in May
Mountville, SC

Average snowfall in May - Mountville, SC
  • Average snowfall in May: 0"

The month with the highest snowfall is February (0.98").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in May
Mountville, SC

Average snowfall days in May - Mountville, SC
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is February (0.9 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

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Average daylight in May /
Average sunshine in May
Mountville, SC

Average daylight in May / Average sunshine in May - Mountville, SC
  • Average daylight in May: 14h and 0min

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 May: 9h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).

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Average sunshine days in May
Mountville, SC

Average sunshine days in May - Mountville, SC
  • Average sunshine days in May: 14.1 days

The month with the most sunshine days is October (21.3 days).
The month with the least sunshine days is July (12 days).

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Average UV index in May
Mountville, SC

Average UV index in May - Mountville, SC
  • Average UV index in May: 6

The month with the highest UV index is June (UV index 7).
The month with the lowest UV index is January (UV index 2).

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Average cloud cover in May
Mountville, SC

Average cloud cover in May - Mountville, SC
  • Average cloud cover in May: 37

The months with the most cloud cover are February and December (Cloud cover 44).
The months with the least cloud cover are June, July and October (Cloud cover 31).

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Average visibility in May
Mountville, SC

Average visibility in May - Mountville, 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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Mountville, South Carolina, USA

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