April weather forecast
Irwin, SC

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Weather in April

April in Irwin, South Carolina, is a pleasant spring month, with an average temperature varying between 53.2°F (11.8°C) and 71.6°F (22°C).

Temperature

The rise of average high-temperatures is seen in April, with an increase from a comfortable 62.1°F (16.7°C) in March to a pleasant 71.6°F (22°C). Throughout the month of April, Irwin observes an average nighttime temperature of 53.2°F (11.8°C).

Humidity

The average relative humidity in April in Irwin is 73%.

Rainfall

In Irwin, South Carolina, in April, it is raining for 10.9 days, with typically 1.02" (26mm) 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

In Irwin, snow does not fall in March through December.

Daylight

In April, the average length of the day is 13h and 5min.
On the first day of April in Irwin, sunrise is at 7:09 am and sunset at 7:44 pm. On the last day of the month, sunrise is at 6:33 am and sunset at 8:07 pm EDT.

Sunshine

In Irwin, South Carolina, the average sunshine in April is 9.2h.

UV index

In Irwin, South Carolina, the average daily maximum UV index in April is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: In April, the average maximum UV index of 5 translates into the following recommendations:
Ensure safety - Sun damage prevention is strongly urged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
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Frequently asked questions

What are April temperatures in Irwin?

An average high-temperature, in April, in Irwin, is 71.6°F (22°C) and the average low-temperature is 53.2°F (11.8°C).

What is the average humidity in April in Irwin?

The average relative humidity in April in Irwin is 73%.

How much does it rain in Irwin in April?

In April, the rain falls for 10.9 days. Throughout April, 1.02" (26mm) of precipitation is accumulated.

When it does not snow in Irwin?

March through December are months without snowfall.

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

The average day length in April is 13h and 5min.

When is the sunrise / sunset in April in Irwin?

On the first day of April in Irwin, South Carolina, sunrise is at 7:09 am and sunset at 7:44 pm. On the last day of the month, sunrise is at 6:33 am and sunset at 8:07 pm EDT.

How long on average sun shines in April in Irwin?

The average sunshine duration in April in Irwin, South Carolina, is 9.2h.

What is the UV index reading in April in Irwin?

In Irwin, the average daily maximum UV index in April is 5. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from 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 April
Irwin, SC

Average temperature in April - Irwin, SC
  • Average high temperature in April: 71.6°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 April: 53.2°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 April
Irwin, SC

Average pressure in April - Irwin, SC
  • Average pressure in April: 30.01"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 April
Irwin, SC

Average wind speed in April - Irwin, SC
  • Average wind speed in April: 8mph

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 April
Irwin, SC

Average humidity in April - Irwin, SC
  • Average humidity in April: 73%

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 April
Irwin, SC

Average rainfall in April - Irwin, SC
  • Average rainfall in April: 1.02"

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 April
Irwin, SC

Average rainfall days in April - Irwin, SC
  • Average rainfall days in April: 10.9 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 April
Irwin, SC

Average snowfall in April - Irwin, SC
  • Average snowfall in April: 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 April
Irwin, SC

Average snowfall days in April - Irwin, SC
  • Average snowfall days in April: 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 April /
Average sunshine in April
Irwin, SC

Average daylight in April / Average sunshine in April - Irwin, SC
  • Average daylight in April: 13h and 1min

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 April: 9h and 1min

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 April
Irwin, SC

Average sunshine days in April - Irwin, SC
  • Average sunshine days in April: 16.9 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 April
Irwin, SC

Average UV index in April - Irwin, SC
  • Average UV index in April: 5

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 April
Irwin, SC

Average cloud cover in April - Irwin, SC
  • Average cloud cover in April: 34

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 April
Irwin, SC

Average visibility in April - Irwin, SC
  • Average visibility in April: 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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