May weather forecast
Smyrna, SC

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Weather in May

The last month of the spring, May, is a moderately hot month in Smyrna, South Carolina, with an average temperature ranging between max 79.3°F (26.3°C) and min 58.6°F (14.8°C).

Temperature

Smyrna's transition into May sees a mild rise in the average high-temperature, edging from a pleasant 71.4°F (21.9°C) in April to a moderately hot 79.3°F (26.3°C). Smyrna records a steady low-temperature average of 58.6°F (14.8°C) during May.

Humidity

The average relative humidity in May in Smyrna is 75%.

Rainfall

In Smyrna, in May, it is raining for 15.4 days, with typically 2.13" (54mm) of accumulated precipitation. Throughout the year, there are 150.1 rainfall days, and 27.68" (703mm) of precipitation is accumulated.

Snowfall

In Smyrna, snow does not fall in April through November.

Daylight

The average length of the day in May is 14h and 1min.
On the first day of the month, sunrise is at 6:33 am and sunset at 8:11 pm. On the last day of May, sunrise is at 6:12 am and sunset at 8:34 pm EDT.

Sunshine

The average sunshine in May is 9.7h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The UV index of 6 in May translates into these instructions:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. Experience reduced UV exposure by about half when donning a wide-brim hat.
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Frequently asked questions

What is the usual temperature for Smyrna in May?

In May, in Smyrna, the average high-temperature is 79.3°F (26.3°C), and the average low-temperature is 58.6°F (14.8°C).

What is the average humidity in May in Smyrna?

The average relative humidity in May is 75%.

How much does it rain in Smyrna in May?

In Smyrna, South Carolina, in May, it is raining for 15.4 days, with typically 2.13" (54mm) of accumulated precipitation.

When it does not snow in Smyrna?

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

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

The average day length in May is 14h and 1min.

What time are sunrise and sunset in May in Smyrna?

In May, on the first day of the month, sunrise is at 6:33 am and sunset at 8:11 pm. On the last day of the month, in Smyrna, South Carolina, sunrise is at 6:12 am and sunset at 8:34 pm EDT.

How long on average sun shines in May in Smyrna?

In Smyrna, South Carolina, the average sunshine duration in May is 9.7h.

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

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

What is the UV index intensity in May in Smyrna?

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

Average temperature in May - Smyrna, SC
  • Average high temperature in May: 79.3°F

The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (48.7°F).

  • Average low temperature in May: 58.6°F

The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (32.7°F).

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Average pressure in May
Smyrna, SC

Average pressure in May - Smyrna, 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).

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Average wind speed in May
Smyrna, SC

Average wind speed in May - Smyrna, SC
  • Average wind speed in May: 5.6mph

The windiest month (with the highest average wind speed) is April (6.9mph).
The calmest month (with the lowest average wind speed) is August (4.1mph).

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Average humidity in May
Smyrna, SC

Average humidity in May - Smyrna, SC
  • Average humidity in May: 75%

The month with the highest relative humidity is December (76%).
The month with the lowest relative humidity is July (70%).

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Average rainfall in May
Smyrna, SC

Average rainfall in May - Smyrna, SC
  • Average rainfall in May: 2.13"

The wettest month (with the highest rainfall) is August (3.11").
The driest month (with the least rainfall) is October (1.73").

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Average rainfall days in May
Smyrna, SC

Average rainfall days in May - Smyrna, SC
  • Average rainfall days in May: 15.4 days

The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is November (8.6 days).

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Average snowfall in May
Smyrna, SC

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

The month with the highest snowfall is December (2.01").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in May
Smyrna, SC

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

The month with the highest number of snowfall days is February (1.8 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

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

Average daylight in May / Average sunshine in May - Smyrna, 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 48min).

  • Average sunshine in May: 9h and 4min

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

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Average sunshine days in May
Smyrna, SC

Average sunshine days in May - Smyrna, SC
  • Average sunshine days in May: 13.3 days

The month with the most sunshine days is October (20.9 days).
The month with the least sunshine days is July (11.2 days).

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Average UV index in May
Smyrna, SC

Average UV index in May - Smyrna, 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).

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Average cloud cover in May
Smyrna, SC

Average cloud cover in May - Smyrna, SC
  • Average cloud cover in May: 38

The month with the most cloud cover is December (Cloud cover 43).
The months with the least cloud cover are June and July (Cloud cover 30).

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Average visibility in May
Smyrna, SC

Average visibility in May - Smyrna, SC
  • Average visibility in May: 5mi

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

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Smyrna, South Carolina, USA

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