May weather forecast
Una, SC

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Weather in May

The last month of the spring, May, is a moderately hot month in Una, South Carolina, with an average temperature ranging between max 79.7°F (26.5°C) and min 59°F (15°C).

Temperature

As Una transitions into May, a marginal rise in the average high-temperature is observed, moving from a pleasant 72°F (22.2°C) in April to a moderately hot 79.7°F (26.5°C). Una records a consistent low-temperature of 59°F (15°C) during May nights.

Humidity

In Una, South Carolina, the average relative humidity in May is 74%.

Rainfall

In May, the rain falls for 14.7 days. Throughout May, 2.68" (68mm) of precipitation is accumulated. In Una, during the entire year, the rain falls for 145.5 days and collects up to 28.98" (736mm) of precipitation.

Snowfall

April through November are months without snowfall in Una.

Daylight

In Una, the average length of the day in May is 14h and 1min.
On the first day of the month, sunrise is at 6:36 am and sunset at 8:13 pm. On the last day of May, in Una, sunrise is at 6:15 am and sunset at 8:36 pm EDT.

Sunshine

The average sunshine in May is 9.9h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: In May, the maximum UV index of 6 suggests this advice:
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. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average May temperature in Una?

The high-temperature, in May, in Una, is 79.7°F (26.5°C), while the low-temperature averages to 59°F (15°C).

What is the average humidity in May in Una?

In May, the average relative humidity is 74%.

How much does it rain in Una in May?

In May, the rain falls for 14.7 days. Throughout May, 2.68" (68mm) of precipitation is accumulated.

When it does not snow in Una?

In Una, South Carolina, snow does not fall in April through November.

How many hours of daylight does Una have in May?

The average day length in May in Una, South Carolina, is 14h and 1min.

When are sunrise and sunset in May in Una?

In May, on the first day of the month, sunrise is at 6:36 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 6:15 am and sunset at 8:36 pm EDT.

How long on average sun shines in May in Una?

In Una, the average sunshine duration in May is 9.9h.

What are the months with the highest UV index in Una?

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

How high is the UV index in May in Una?

In May, the average daily maximum UV index in Una is 6. A UV Index reading of 6 to 7 represents a high hazard to health 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
Una, SC

Average temperature in May - Una, SC
  • Average high temperature in May: 79.7°F

The warmest month (with the highest average high temperature) is July (91.4°F).
The month with the lowest average high temperature is January (49.6°F).

  • Average low temperature in May: 59°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (33.1°F).

Average pressure in May
Una, SC

Average pressure in May - Una, 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).

Average wind speed in May
Una, SC

Average wind speed in May - Una, SC
  • Average wind speed in May: 5.7mph

The windiest month (with the highest average wind speed) is April (7mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).

Average humidity in May
Una, SC

Average humidity in May - Una, SC
  • Average humidity in May: 74%

The month with the highest relative humidity is December (76%).
The month with the lowest relative humidity is July (68%).

Average rainfall in May
Una, SC

Average rainfall in May - Una, SC
  • Average rainfall in May: 2.68"

The wettest month (with the highest rainfall) is December (3.43").
The driest month (with the least rainfall) is September (1.54").

Average rainfall days in May
Una, SC

Average rainfall days in May - Una, SC
  • Average rainfall days in May: 14.7 days

The months with the highest number of rainy days are July and August (15.8 days).
The month with the least rainy days is November (8.5 days).

Average snowfall in May
Una, SC

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

The month with the highest snowfall is December (2.2").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in May
Una, SC

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

The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

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

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

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in May: 9h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).

Average sunshine days in May
Una, SC

Average sunshine days in May - Una, SC
  • Average sunshine days in May: 15.1 days

The month with the most sunshine days is October (22 days).
The month with the least sunshine days is July (12.7 days).

Average UV index in May
Una, SC

Average UV index in May - Una, SC
  • 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 and December (UV index 2).

Average cloud cover in May
Una, SC

Average cloud cover in May - Una, SC
  • Average cloud cover in May: 36

The months with the most cloud cover are February and December (Cloud cover 43).
The months with the least cloud cover are June and July (Cloud cover 29).

Average visibility in May
Una, SC

Average visibility in May - Una, 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).

Una, South Carolina, USA

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