April weather forecast
Pierre, SD

The Capitol Dome building in Pierre, South Dakota, set in a beautiful tree park
The Capitol Dome building in Pierre, South Dakota, set in a beautiful tree park

Weather in April

April is a mild spring month in Pierre, South Dakota, with temperature in the range of an average low of 38.5°F (3.6°C) and an average high of 56.1°F (13.4°C).

Temperature

In April, the average high-temperature rises from a frosty 44.1°F (6.7°C) in March to a moderate 56.1°F (13.4°C). In April, in Pierre, the average low-temperature is 38.5°F (3.6°C).

Humidity

The average relative humidity in April is 63%.

Rainfall

In Pierre, South Dakota, in April, during 10.8 rainfall days, 1.38" (35mm) of precipitation is typically accumulated. Throughout the year, in Pierre, there are 98.5 rainfall days, and 13.7" (348mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In April, it is snowing for 3.1 days. Throughout April, 1.61" (41mm) of snow is accumulated. In Pierre, South Dakota, during the entire year, snow falls for 41.4 days and aggregates up to 13.07" (332mm) of snow.

Daylight

In April, the average length of the day in Pierre is 13h and 30min.
On the first day of April in Pierre, sunrise is at 7:22 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 6:33 am and sunset at 8:43 pm CDT.

Sunshine

In Pierre, the average sunshine in April is 8.1h.

UV index

In April, the average daily maximum UV index in Pierre is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: In April, the average maximum UV index of 3 translate into the following recommendations:
Take precautions - Protection against skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the temperature in April in Pierre?

The average high-temperature, in April, is 56.1°F (13.4°C), while the average low-temperature is 38.5°F (3.6°C).

What is the average humidity in April in Pierre?

The average relative humidity in April in Pierre, South Dakota, is 63%.

How much does it rain in Pierre in April?

In Pierre, South Dakota, in April, it is raining for 10.8 days, with typically 1.38" (35mm) of accumulated precipitation.

How many days does it snow in April in Pierre?

In Pierre, during April, snow falls for 3.1 days and regularly aggregates up to 1.61" (41mm) of snow.

How many hours of daylight does Pierre have in April?

The average day length in April in Pierre is 13h and 30min.

What time are sunrise and sunset in April in Pierre?

On the first day of April in Pierre, sunrise is at 7:22 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 6:33 am and sunset at 8:43 pm CDT.

How many hours of sunshine does Pierre have in April?

The average sunshine duration in April is 8.1h.

What is the UV index reading in April in Pierre?

In April, the average daily maximum UV index in Pierre, South Dakota, is 3. A UV Index of 3 to 5 symbolizes a moderate vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Pierre, SD

Average temperature in April - Pierre, SD
  • Average high temperature in April: 56.1°F

The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is January (26.2°F).

  • Average low temperature in April: 38.5°F

The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (12.6°F).

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Average pressure in April
Pierre, SD

Average pressure in April - Pierre, SD
  • Average pressure in April: 29.94"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

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Average wind speed in April
Pierre, SD

Average wind speed in April - Pierre, SD
  • Average wind speed in April: 11.9mph

The windiest month (with the highest average wind speed) is April (11.9mph).
The calmest months (with the lowest average wind speed) are February and August (9.9mph).

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Average humidity in April
Pierre, SD

Average humidity in April - Pierre, SD
  • Average humidity in April: 63%

The month with the highest relative humidity is January (85%).
The months with the lowest relative humidity are August and September (52%).

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Average rainfall in April
Pierre, SD

Average rainfall in April - Pierre, SD
  • Average rainfall in April: 1.38"

The wettest month (with the highest rainfall) is May (2.24").
The driest month (with the least rainfall) is January (0.35").

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Average rainfall days in April
Pierre, SD

Average rainfall days in April - Pierre, SD
  • Average rainfall days in April: 10.8 days

The month with the highest number of rainy days is June (14.2 days).
The month with the least rainy days is February (2.4 days).

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Average snowfall in April
Pierre, SD

Average snowfall in April - Pierre, SD
  • Average snowfall in April: 1.61"

The month with the highest snowfall is February (3.66").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in April
Pierre, SD

Average snowfall days in April - Pierre, SD
  • Average snowfall days in April: 3.1 days

The month with the highest number of snowfall days is February (10 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in April / Average sunshine in April - Pierre, SD
  • Average daylight in April: 13h and 30min

The month with the longest days is June (Average daylight: 15h and 29min).
The month with the shortest days is December (Average daylight: 8h and 55min).

  • Average sunshine in April: 8h and 6min

The month with the most sunshine is July (Average sunshine: 11h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).

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Average sunshine days in April
Pierre, SD

Average sunshine days in April - Pierre, SD
  • Average sunshine days in April: 14.3 days

The month with the most sunshine days is November (22.3 days).
The month with the least sunshine days is June (13.7 days).

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Average UV index in April
Pierre, SD

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

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are February and December (UV index 1).

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Average cloud cover in April
Pierre, SD

Average cloud cover in April - Pierre, SD
  • Average cloud cover in April: 41

The month with the most cloud cover is January (Cloud cover 50).
The months with the least cloud cover are July and August (Cloud cover 19).

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Average visibility in April
Pierre, SD

Average visibility in April - Pierre, SD
  • 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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