May weather forecast
South Portsmouth, KY

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Weather in May

The last month of the spring, May, is a warm month in South Portsmouth, Kentucky, with an average temperature varying between 75.2°F (24°C) and 54.3°F (12.4°C).

Temperature

South Portsmouth, Kentucky, sees an increase in average high-temperatures during May, moving from a comfortable 64.9°F (18.3°C) in April to a moderately hot 75.2°F (24°C). May's average low-temperature reading settles at a fresh 54.3°F (12.4°C).

Humidity

In South Portsmouth, Kentucky, the average relative humidity in May is 78%.

Rainfall

The month with the most rainfall is May, when the rain falls for 18.3 days and typically aggregates up to 3.19" (81mm) of precipitation.

Snowfall

In South Portsmouth, Kentucky, snow does not fall in May through September.

Daylight

The average length of the day in May is 14h and 18min.
On the first day of the month, sunrise is at 6:33 am and sunset at 8:24 pm. On the last day of May, in South Portsmouth, sunrise is at 6:09 am and sunset at 8:50 pm EDT.

Sunshine

In South Portsmouth, the average sunshine in May is 9.1h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum UV index, 6 during May, leads to the following recommendations:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
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Frequently asked questions

What is the temperature in May in South Portsmouth?

The high-temperature, in May, in South Portsmouth, records 75.2°F (24°C), while the low-temperature is 54.3°F (12.4°C).

What is the average humidity in May in South Portsmouth?

The average relative humidity in May in South Portsmouth is 78%.

What is the rainiest month in South Portsmouth?

May is the month with the most rainfall. Rain falls for 18.3 days and accumulates 3.19" (81mm) of precipitation.

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

In South Portsmouth, in May, it is raining for 18.3 days, with typically 3.19" (81mm) of accumulated precipitation.

When it does not snow in South Portsmouth?

In South Portsmouth, snow does not fall in May through September.

Does it snow in South Portsmouth in May?

In May, 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 Portsmouth?

In May, the average day length in South Portsmouth is 14h and 18min.

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

In May, on the first day of the month, sunrise is at 6:33 am and sunset at 8:24 pm. On the last day of the month, sunrise is at 6:09 am and sunset at 8:50 pm EDT.

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

In South Portsmouth, Kentucky, the average sunshine duration in May is 9.1h.

What are the months with the highest UV index in South Portsmouth?

May through August, with an average maximum UV index of 6, are months with the highest UV index.

What is the UV index reading in May in South Portsmouth?

In South Portsmouth, Kentucky, the average daily maximum UV index in May is 6. A UV Index estimate of 6 to 7 represents a high hazard to health from exposure to the Sun's UV radiation.
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 Portsmouth, KY

Average temperature in May - South Portsmouth, KY
  • Average high temperature in May: 75.2°F

The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is January (37.8°F).

  • Average low temperature in May: 54.3°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

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Average pressure in May
South Portsmouth, KY

Average pressure in May - South Portsmouth, KY
  • Average pressure in May: 30"Hg

The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

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Average wind speed in May
South Portsmouth, KY

Average wind speed in May - South Portsmouth, KY
  • Average wind speed in May: 6mph

The windiest months (with the highest average wind speed) are January and February (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).

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Average humidity in May
South Portsmouth, KY

Average humidity in May - South Portsmouth, KY
  • Average humidity in May: 78%

The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is August (75%).

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Average rainfall in May
South Portsmouth, KY

Average rainfall in May - South Portsmouth, KY
  • Average rainfall in May: 3.19"

The wettest month (with the highest rainfall) is May (3.19").
The driest month (with the least rainfall) is September (1.85").

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Average rainfall days in May
South Portsmouth, KY

Average rainfall days in May - South Portsmouth, KY
  • Average rainfall days in May: 18.3 days

The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is November (10.5 days).

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Average snowfall in May
South Portsmouth, KY

Average snowfall in May - South Portsmouth, KY
  • Average snowfall in May: 0"

The month with the highest snowfall is January (3.19").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in May
South Portsmouth, KY

Average snowfall days in May - South Portsmouth, KY
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (10.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in May /
Average sunshine in May
South Portsmouth, KY

Average daylight in May / Average sunshine in May - South Portsmouth, KY
  • Average daylight in May: 14h and 2min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in May: 9h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

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Average sunshine days in May
South Portsmouth, KY

Average sunshine days in May - South Portsmouth, KY
  • Average sunshine days in May: 10.2 days

The month with the most sunshine days is November (17.3 days).
The month with the least sunshine days is February (10 days).

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Average UV index in May
South Portsmouth, KY

Average UV index in May - South Portsmouth, KY
  • Average UV index in May: 6

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, February, November and December (UV index 2).

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Average cloud cover in May
South Portsmouth, KY

Average cloud cover in May - South Portsmouth, KY
  • Average cloud cover in May: 42

The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 30).

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Average visibility in May
South Portsmouth, KY

Average visibility in May - South Portsmouth, KY
  • Average visibility in May: 5mi

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

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South Portsmouth, Kentucky, USA

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