May weather forecast
South Boston, VA

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Weather in May

May, the last month of the spring in South Boston, is a warm month, with an average temperature ranging between max 78.3°F (25.7°C) and min 57.7°F (14.3°C).

Temperature

May's arrival brings a slight change in high-temperatures, adjusting from a pleasant 69.6°F (20.9°C) in April to a warm 78.3°F (25.7°C). Throughout May, an average low-temperature of 57.7°F (14.3°C) is experienced.

Humidity

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

Rainfall

The month with the most rainfall is May, when the rain falls for 17.3 days and typically aggregates up to 2.95" (75mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In South Boston, the average length of the day in May is 14h and 8min.
On the first day of May in South Boston, sunrise is at 6:20 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 5:58 am and sunset at 8:28 pm EDT.

Sunshine

In May, the average sunshine is 9.5h.

UV index

The average daily maximum UV index in May in South Boston is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 6 in May converts into the following recommendations:
Resist extreme sun exposure. Guarding against solar damage is essential. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Enhance your sun protection with tightly woven, yet airy clothing.
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Frequently asked questions

What are May temperatures in South Boston?

In South Boston, 78.3°F (25.7°C) is the average high-temperature and 57.7°F (14.3°C) is the average low-temperature during May.

What is the average humidity in May in South Boston?

The average relative humidity in May in South Boston is 75%.

What is the rainiest month in South Boston?

May is the month with the most rainfall. Rain falls for 17.3 days and accumulates 2.95" (75mm) of precipitation.

How many days does it rain in May in South Boston?

In South Boston, in May, during 17.3 rainfall days, 2.95" (75mm) of precipitation is typically accumulated.

When it does not snow in South Boston?

May through October are months without snowfall.

Does it snow in South Boston in May?

In May, in South Boston, it doesn't snow. April is the latest month when it typically snows.

What is the average length of the day in May in South Boston?

In South Boston, Virginia, the average day length in May is 14h and 8min.

When is the sunrise / sunset in May in South Boston?

In May, on the first day of the month, sunrise is at 6:20 am and sunset at 8:04 pm. On the last day of the month, in South Boston, sunrise is at 5:58 am and sunset at 8:28 pm EDT.

How many hours of sunshine does South Boston have in May?

In May, the average sunshine duration in South Boston is 9.5h.

What is the UV index intensity in May in South Boston?

The average daily maximum UV index in May in South Boston, Virginia, is 6. A UV Index estimate 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
South Boston, VA

Average temperature in May - South Boston, VA
  • Average high temperature in May: 78.3°F

The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is January (45.5°F).

  • Average low temperature in May: 57.7°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (30.4°F).

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Average pressure in May
South Boston, VA

Average pressure in May - South Boston, VA
  • Average pressure in May: 30.02"Hg

The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

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Average wind speed in May
South Boston, VA

Average wind speed in May - South Boston, VA
  • Average wind speed in May: 6.1mph

The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

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Average humidity in May
South Boston, VA

Average humidity in May - South Boston, VA
  • Average humidity in May: 75%

The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is July (69%).

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Average rainfall in May
South Boston, VA

Average rainfall in May - South Boston, VA
  • Average rainfall in May: 2.95"

The wettest month (with the highest rainfall) is May (2.95").
The driest month (with the least rainfall) is September (1.77").

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Average rainfall days in May
South Boston, VA

Average rainfall days in May - South Boston, VA
  • Average rainfall days in May: 17.3 days

The months with the highest number of rainy days are May and July (17.3 days).
The month with the least rainy days is November (9.2 days).

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Average snowfall in May
South Boston, VA

Average snowfall in May - South Boston, VA
  • Average snowfall in May: 0"

The month with the highest snowfall is January (2.48").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in May
South Boston, VA

Average snowfall days in May - South Boston, VA
  • Average snowfall days in May: 0 days

The months with the highest number of snowfall days are January and February (3.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in May /
Average sunshine in May
South Boston, VA

Average daylight in May / Average sunshine in May - South Boston, VA
  • Average daylight in May: 14h and 1min

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in May: 9h and 3min

The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).

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Average sunshine days in May
South Boston, VA

Average sunshine days in May - South Boston, VA
  • Average sunshine days in May: 11.8 days

The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is May (11.8 days).

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Average UV index in May
South Boston, VA

Average UV index in May - South Boston, VA
  • Average UV index in May: 6

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).

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Average cloud cover in May
South Boston, VA

Average cloud cover in May - South Boston, VA
  • Average cloud cover in May: 40

The month with the most cloud cover is March (Cloud cover 43).
The months with the least cloud cover are June and July (Cloud cover 31).

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Average visibility in May
South Boston, VA

Average visibility in May - South Boston, VA
  • Average visibility in May: 5mi

The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).

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South Boston, Virginia, USA

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