May weather forecast
Marion, SC

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Weather in May

May, the last month of the spring in Marion, is a moderately hot month, with temperature in the range of an average high of 79.7°F (26.5°C) and an average low of 62.6°F (17°C).

Temperature

May brings a slight rise in Marion's average high-temperature, moving from a pleasant 72.1°F (22.3°C) in April to a moderately hot 79.7°F (26.5°C). During May, Marion consistently records a temperature low averaging an enjoyable 62.6°F (17°C).

Humidity

The months with the highest humidity are May, August and September, with an average relative humidity of 78%.

Rainfall

In Marion, in May, during 17.9 rainfall days, 3.9" (99mm) of precipitation is typically accumulated. In Marion, during the entire year, the rain falls for 171 days and collects up to 34.29" (871mm) of precipitation.

Snowfall

April through November are months without snowfall.

Daylight

In Marion, the average length of the day in May is 13h and 57min.
On the first day of the month, sunrise is at 6:27 am and sunset at 8:02 pm. On the last day of May, sunrise is at 6:06 am and sunset at 8:23 pm EDT.

Sunshine

The average sunshine in May is 9.8h.

UV index

In Marion, the average daily maximum UV index in May is 6. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the average person.
Note: In May, an average UV index of 6 transforms into the following instructions:
Deflect overexposure. Sun protection is a necessity. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Updated: Aug 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Marion in May?

May temperatures vary between a high-temperature of 79.7°F (26.5°C) and a low-temperature of 62.6°F (17°C).

What are the most humid months?

May, August and September, with an average relative humidity of 78%, are most humid months.

What is the average humidity in May in Marion?

In May, the average relative humidity is 78%.

How many days does it rain in May?

In Marion, in May, it is raining for 17.9 days, with typically 3.9" (99mm) of accumulated precipitation.

When it does not snow?

April through November are months without snowfall in Marion.

How many hours of daylight does Marion have in May?

In May, the average day length is 13h and 57min.

When is the sunrise / sunset in May?

On the first day of May, sunrise is at 6:27 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 6:06 am and sunset at 8:23 pm EDT.

How many hours of sunshine does Marion have in May?

In May, the average sunshine duration is 9.8h.

What is the UV index intensity in May?

In Marion, the average daily maximum UV index in May is 6. A UV Index estimate of 6 to 7 represents a high health risk 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
Marion, SC

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

The warmest month (with the highest average high temperature) is July (89.4°F).
The month with the lowest average high temperature is January (52.3°F).

  • Average low temperature in May: 62.6°F

The month with the highest average low temperature is July (72.3°F).
The coldest month (with the lowest average low temperature) is January (36.9°F).

Average pressure in May
Marion, SC

Average pressure in May - Marion, SC
  • Average pressure in May: 30.02"Hg

The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

Average wind speed in May
Marion, SC

Average wind speed in May - Marion, SC
  • Average wind speed in May: 7mph

The windiest month (with the highest average wind speed) is April (8mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

Average humidity in May
Marion, SC

Average humidity in May - Marion, SC
  • Average humidity in May: 78%

The months with the highest relative humidity are May, August and September (78%).
The months with the lowest relative humidity are January and November (73%).

Average rainfall in May
Marion, SC

Average rainfall in May - Marion, SC
  • Average rainfall in May: 3.9"

The wettest month (with the highest rainfall) is August (4.09").
The driest month (with the least rainfall) is January (1.54").

Average rainfall days in May
Marion, SC

Average rainfall days in May - Marion, SC
  • Average rainfall days in May: 17.9 days

The month with the highest number of rainy days is July (21.1 days).
The month with the least rainy days is October (8.7 days).

Average snowfall in May
Marion, SC

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

The month with the highest snowfall is February (0.63").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in May
Marion, SC

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

The months with the highest number of snowfall days are January and February (0.7 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
Marion, SC

Average daylight in May / Average sunshine in May - Marion, 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 5min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The months with the least sunshine are January and December (Average sunshine: 5h and 36min).

Average sunshine days in May
Marion, SC

Average sunshine days in May - Marion, SC
  • Average sunshine days in May: 11 days

The month with the most sunshine days is October (20.2 days).
The month with the least sunshine days is July (8 days).

Average UV index in May
Marion, SC

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

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

Average cloud cover in May
Marion, SC

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

The month with the most cloud cover is February (Cloud cover 41).
The month with the least cloud cover is October (Cloud cover 29).

Average visibility in May
Marion, SC

Average visibility in May - Marion, 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).

Marion, South Carolina, USA

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