May weather forecast
Irwin, SC

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Weather in May

May, the last month of the spring in Irwin, is a moderately hot month, with an average temperature ranging between min 61°F (16.1°C) and max 79.9°F (26.6°C).

Temperature

In Irwin, the average high-temperature in May slightly increases from an agreeable 71.6°F (22°C) in April to a moderately hot 79.9°F (26.6°C). In the month of May, Irwin witnesses a consistent average low-temperature of 61°F (16.1°C).

Humidity

The months with the highest humidity in Irwin are May and December, with an average relative humidity of 75%.

Rainfall

In Irwin, in May, it is raining for 11.8 days, with typically 1.14" (29mm) of accumulated precipitation. In Irwin, during the entire year, the rain falls for 120.6 days and collects up to 11.97" (304mm) of precipitation.

Snowfall

March through December are months without snowfall in Irwin.

Daylight

In May, the average length of the day is 13h and 59min.
On the first day of the month, sunrise is at 6:32 am and sunset at 8:08 pm. On the last day of May, in Irwin, sunrise is at 6:11 am and sunset at 8:30 pm EDT.

Sunshine

In May, the average sunshine is 9.9h.

UV index

In Irwin, South Carolina, the average daily maximum UV index in May is 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: During May, 6 as the daily maximum UV index converts into the following advice:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
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Frequently asked questions

What are May temperatures in Irwin?

May temperatures in Irwin, South Carolina, vary between a high-temperature of 79.9°F (26.6°C) and a low-temperature of 61°F (16.1°C).

What are the most humid months in Irwin?

May and December, with an average relative humidity of 75%, are most humid months in Irwin, South Carolina.

What is the average humidity in May in Irwin?

The average relative humidity in May is 75%.

How many days does it rain in May in Irwin?

In Irwin, South Carolina, in May, it is raining for 11.8 days, with typically 1.14" (29mm) of accumulated precipitation.

When it does not snow in Irwin?

March through December are months without snowfall in Irwin, South Carolina.

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

In Irwin, South Carolina, the average day length in May is 13h and 59min.

When is the sunrise / sunset in May in Irwin?

In May, on the first day of the month, sunrise is at 6:32 am and sunset at 8:08 pm. On the last day of the month, in Irwin, sunrise is at 6:11 am and sunset at 8:30 pm EDT.

How long on average sun shines in May in Irwin?

The average sunshine duration in May is 9.9h.

How high is the UV index in May in Irwin?

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

Average temperature in May - Irwin, SC
  • Average high temperature in May: 79.9°F

The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is January (49.8°F).

  • Average low temperature in May: 61°F

The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (35.2°F).

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Average pressure in May
Irwin, SC

Average pressure in May - Irwin, 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 (29.97"Hg).

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Average wind speed in May
Irwin, SC

Average wind speed in May - Irwin, SC
  • Average wind speed in May: 6.5mph

The windiest months (with the highest average wind speed) are February and April (8mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

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Average humidity in May
Irwin, SC

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

The months with the highest relative humidity are May and December (75%).
The months with the lowest relative humidity are June, July and November (71%).

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Average rainfall in May
Irwin, SC

Average rainfall in May - Irwin, SC
  • Average rainfall in May: 1.14"

The wettest month (with the highest rainfall) is August (1.61").
The driest month (with the least rainfall) is September (0.51").

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Average rainfall days in May
Irwin, SC

Average rainfall days in May - Irwin, SC
  • Average rainfall days in May: 11.8 days

The month with the highest number of rainy days is July (14.9 days).
The month with the least rainy days is November (5.9 days).

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Average snowfall in May
Irwin, SC

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

The month with the highest snowfall is February (0.12").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in May
Irwin, SC

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

The month with the highest number of snowfall days is February (0.5 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

Average daylight in May / Average sunshine in May - Irwin, 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 54min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

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Average sunshine days in May
Irwin, SC

Average sunshine days in May - Irwin, SC
  • Average sunshine days in May: 16.3 days

The month with the most sunshine days is October (23.5 days).
The month with the least sunshine days is July (12.9 days).

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Average UV index in May
Irwin, SC

Average UV index in May - Irwin, 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).

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Average cloud cover in May
Irwin, SC

Average cloud cover in May - Irwin, SC
  • Average cloud cover in May: 35

The month with the most cloud cover is February (Cloud cover 42).
The month with the least cloud cover is June (Cloud cover 28).

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Average visibility in May
Irwin, SC

Average visibility in May - Irwin, 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).

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Irwin, South Carolina, USA

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