May weather forecast
Hartsville, TN

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Weather in May

May, the last month of the spring in Hartsville, is a warm month, with an average temperature fluctuating between 57.2°F (14°C) and 76.8°F (24.9°C).

Temperature

May signals a minor shift in the average high-temperature, moving from April's pleasant 68.5°F (20.3°C) to a warm 76.8°F (24.9°C). Throughout May, Hartsville witnesses a nighttime temperature average of 57.2°F (14°C).

Humidity

The months with the highest humidity are February, March, May and December, with an average relative humidity of 79%.

Rainfall

In Hartsville, in May, it is raining for 18.1 days, with typically 3.58" (91mm) of accumulated precipitation. Throughout the year, there are 178.1 rainfall days, and 37.99" (965mm) of precipitation is accumulated.

Snowfall

In Hartsville, Tennessee, snow does not fall in May through September.

Daylight

In May, the average length of the day in Hartsville is 14h and 7min.
On the first day of May, sunrise is at 5:50 am and sunset at 7:32 pm. On the last day of the month, sunrise is at 5:28 am and sunset at 7:56 pm CDT.

Sunshine

The average sunshine in May is 9.2h.

UV index

The months with the highest UV index in Hartsville are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum UV index of 6 during May leads to these instructions:
Deter overexposure. Protecting against the sun's effects is essential. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
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Frequently asked questions

What is the temperature in May in Hartsville?

The average high-temperature, in May, in Hartsville, is 76.8°F (24.9°C), while the average low-temperature is 57.2°F (14°C).

What is the most humid month in Hartsville?

The months with the highest humidity in Hartsville, Tennessee, are February, March, May and December, with an average relative humidity of 79%.

What is the average humidity in May in Hartsville?

In Hartsville, Tennessee, the average relative humidity in May is 79%.

How many days does it rain in May in Hartsville?

In May, in Hartsville, Tennessee, the rain falls for 18.1 days. Throughout May, 3.58" (91mm) of precipitation is accumulated.

When it does not snow in Hartsville?

May through September are months without snowfall in Hartsville.

Does it snow in Hartsville in May?

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

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

In Hartsville, the average day length in May is 14h and 7min.

When is the sunrise / sunset in May in Hartsville?

On the first day of May, sunrise is at 5:50 am and sunset at 7:32 pm. On the last day of the month, sunrise is at 5:28 am and sunset at 7:56 pm CDT.

How many hours of sunshine does Hartsville have in May?

The average sunshine duration in May is 9.2h.

What is the month with the highest UV index in Hartsville?

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

What is the UV index reading in May in Hartsville?

In May, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes 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
Hartsville, TN

Average temperature in May - Hartsville, TN
  • Average high temperature in May: 76.8°F

The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (43.7°F).

  • Average low temperature in May: 57.2°F

The month with the highest average low temperature is July (67.3°F).
The coldest month (with the lowest average low temperature) is January (29.5°F).

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Average pressure in May
Hartsville, TN

Average pressure in May - Hartsville, TN
  • Average pressure in May: 30"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

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Average wind speed in May
Hartsville, TN

Average wind speed in May - Hartsville, TN
  • Average wind speed in May: 6mph

The windiest month (with the highest average wind speed) is February (7.9mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).

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Average humidity in May
Hartsville, TN

Average humidity in May - Hartsville, TN
  • Average humidity in May: 79%

The months with the highest relative humidity are February, March, May and December (79%).
The months with the lowest relative humidity are October and November (75%).

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Average rainfall in May
Hartsville, TN

Average rainfall in May - Hartsville, TN
  • Average rainfall in May: 3.58"

The wettest month (with the highest rainfall) is July (4.53").
The driest month (with the least rainfall) is September (2.05").

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Average rainfall days in May
Hartsville, TN

Average rainfall days in May - Hartsville, TN
  • Average rainfall days in May: 18.1 days

The month with the highest number of rainy days is July (19.4 days).
The month with the least rainy days is November (9.7 days).

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Average snowfall in May
Hartsville, TN

Average snowfall in May - Hartsville, TN
  • Average snowfall in May: 0"

The month with the highest snowfall is January (1.38").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in May
Hartsville, TN

Average snowfall days in May - Hartsville, TN
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (5.4 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
Hartsville, TN

Average daylight in May / Average sunshine in May - Hartsville, TN
  • 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 1min

The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).

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Average sunshine days in May
Hartsville, TN

Average sunshine days in May - Hartsville, TN
  • Average sunshine days in May: 10.3 days

The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is July (9.3 days).

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Average UV index in May
Hartsville, TN

Average UV index in May - Hartsville, TN
  • 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 and December (UV index 2).

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Average cloud cover in May
Hartsville, TN

Average cloud cover in May - Hartsville, TN
  • Average cloud cover in May: 39

The month with the most cloud cover is February (Cloud cover 55).
The month with the least cloud cover is June (Cloud cover 31).

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Average visibility in May
Hartsville, TN

Average visibility in May - Hartsville, TN
  • Average visibility in May: 5mi

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

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Hartsville, Tennessee, USA

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