April weather forecast
Erwin, SD

Weather in April

April in Erwin, South Dakota, is a fresh spring month, with an average temperature fluctuating between 35.2°F (1.8°C) and 51.6°F (10.9°C).

Temperature

In Erwin, the average high-temperature in April rises from a cold 38.1°F (3.4°C) in March to a fresh 51.6°F (10.9°C). In Erwin, the average low-temperature is 35.2°F (1.8°C).

Humidity

The average relative humidity in April is 70%.

Rainfall

In April, in Erwin, the rain falls for 11.6 days. Throughout April, 1.46" (37mm) of precipitation is accumulated. Throughout the year, there are 112.3 rainfall days, and 18.78" (477mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Erwin. In Erwin, during 4.8 snowfall days, 1.46" (37mm) of snow is typically accumulated. Throughout the year, in Erwin, there are 64.3 snowfall days, and 17.56" (446mm) of snow is accumulated.

Daylight

In Erwin, the average length of the day in April is 13h and 30min.
On the first day of April, sunrise is at 7:10 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 6:21 am and sunset at 8:32 pm CDT.

Sunshine

In April, the average sunshine in Erwin, South Dakota, is 7.5h.

UV index

In April, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the average person.
Note: The daily maximum UV index of 3 in April interpret into the following advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in April in Erwin?

In Erwin, South Dakota, in April, the average high-temperature is 51.6°F (10.9°C), and the average low-temperature is 35.2°F (1.8°C).

What is the average humidity in April in Erwin?

In Erwin, the average relative humidity in April is 70%.

How much does it rain in Erwin in April?

In Erwin, South Dakota, during April, the rain falls for 11.6 days and regularly aggregates up to 1.46" (37mm) of precipitation.

How many days does it snow in April in Erwin?

In April, in Erwin, it is snowing for 4.8 days. Throughout April, 1.46" (37mm) of snow is accumulated.

How many hours of daylight does Erwin have in April?

The average day length in April in Erwin, South Dakota, is 13h and 30min.

When are sunrise and sunset in April in Erwin?

On the first day of April in Erwin, sunrise is at 7:10 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 6:21 am and sunset at 8:32 pm CDT.

How long on average sun shines in April in Erwin?

In April, the average sunshine duration is 7.5h.

What is the UV index intensity in April in Erwin?

In Erwin, South Dakota, the average daily maximum UV index in April is 3. A UV Index reading of 3 to 5 represents a moderate health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Erwin, SD

Average temperature in April - Erwin, SD
  • Average high temperature in April: 51.6°F

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (19.4°F).

  • Average low temperature in April: 35.2°F

The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (5.5°F).

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Average pressure in April
Erwin, SD

Average pressure in April - Erwin, SD
  • Average pressure in April: 29.95"Hg

The months with the highest atmospheric pressure are January and February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

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Average wind speed in April
Erwin, SD

Average wind speed in April - Erwin, SD
  • Average wind speed in April: 11.6mph

The windiest month (with the highest average wind speed) is April (11.6mph).
The calmest month (with the lowest average wind speed) is July (8.5mph).

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Average humidity in April
Erwin, SD

Average humidity in April - Erwin, SD
  • Average humidity in April: 70%

The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are September and October (68%).

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Average rainfall in April
Erwin, SD

Average rainfall in April - Erwin, SD
  • Average rainfall in April: 1.46"

The wettest month (with the highest rainfall) is June (3.19").
The driest months (with the least rainfall) are January and February (0.59").

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Average rainfall days in April
Erwin, SD

Average rainfall days in April - Erwin, SD
  • Average rainfall days in April: 11.6 days

The month with the highest number of rainy days is June (17.2 days).
The month with the least rainy days is February (2.7 days).

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Average snowfall in April
Erwin, SD

Average snowfall in April - Erwin, SD
  • Average snowfall in April: 1.46"

The months with the highest snowfall are January and December (3.74").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in April
Erwin, SD

Average snowfall days in April - Erwin, SD
  • Average snowfall days in April: 4.8 days

The month with the highest number of snowfall days is January (14.4 days).
The months with the least snowfall days are June, July and August (0 days).

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Average daylight in April /
Average sunshine in April
Erwin, SD

Average daylight in April / Average sunshine in April - Erwin, SD
  • Average daylight in April: 13h and 3min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in April: 7h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

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Average sunshine days in April
Erwin, SD

Average sunshine days in April - Erwin, SD
  • Average sunshine days in April: 12.8 days

The month with the most sunshine days is October (19.1 days).
The month with the least sunshine days is June (10.3 days).

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Average UV index in April
Erwin, SD

Average UV index in April - Erwin, SD
  • Average UV index in April: 3

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in April
Erwin, SD

Average cloud cover in April - Erwin, SD
  • Average cloud cover in April: 48

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 27).

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Average visibility in April
Erwin, SD

Average visibility in April - Erwin, SD
  • Average visibility in April: 6mi

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

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