April weather forecast
De Smet, SD

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Weather in April

April is a refreshing spring month in De Smet, South Dakota, with temperature in the range of an average high of 55.9°F (13.3°C) and an average low of 37.9°F (3.3°C).

Temperature

April shows a rise in the average high-temperature, moving from March's icy 42.3°F (5.7°C) to a mild 55.9°F (13.3°C). Throughout the month of April, De Smet observes an average nighttime temperature of 37.9°F (3.3°C).

Humidity

In April, the average relative humidity in De Smet, South Dakota, is 67%.

Rainfall

In De Smet, in April, it is raining for 11.3 days, with typically 1.77" (45mm) of accumulated precipitation. Throughout the year, there are 101.8 rainfall days, and 18.19" (462mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, October through December. April is the last month it regularly snows. During 3 snowfall days, in April, De Smet aggregates 2.68" (68mm) of snow. In De Smet, during the entire year, snow falls for 42.3 days and aggregates up to 16.54" (420mm) of snow.

Daylight

The average length of the day in April in De Smet is 13h and 30min.
On the first day of April, sunrise is at 7:09 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 6:20 am and sunset at 8:33 pm CDT.

Sunshine

The average sunshine in April is 7.9h.

UV index

In April, the average daily maximum UV index in De Smet is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: The UV index of 4 during April leads to these advisories:
Take measures. Individuals with light skin might experience burns in under 30 minutes. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in De Smet in April?

De Smet in April has an average high-temperature of 55.9°F (13.3°C) and an average low-temperature of 37.9°F (3.3°C).

What is the average humidity in April in De Smet?

In April, the average relative humidity is 67%.

How many days does it rain in April in De Smet?

In April, in De Smet, the rain falls for 11.3 days. Throughout April, 1.77" (45mm) of precipitation is accumulated.

What is the last month it snows in De Smet?

April is the last month it regularly snows in De Smet. During 3 snowfall days, in April, De Smet aggregates 2.68" (68mm) of snow.

What is the average length of the day in April in De Smet?

In De Smet, the average day length in April is 13h and 30min.

When is the sunrise / sunset in April in De Smet?

On the first day of April, sunrise is at 7:09 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 6:20 am and sunset at 8:33 pm CDT.

How many hours of sunshine does De Smet have in April?

In April, the average sunshine duration in De Smet is 7.9h.

What is the UV index intensity in April in De Smet?

The average daily maximum UV index in April in De Smet, South Dakota, is 4. A UV Index reading of 3 to 5 represents a medium hazard to health from exposure to Sun's UV rays.
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
De Smet, SD

Average temperature in April - De Smet, SD
  • Average high temperature in April: 55.9°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (23.2°F).

  • Average low temperature in April: 37.9°F

The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (8.2°F).

Average pressure in April
De Smet, SD

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

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

Average wind speed in April
De Smet, SD

Average wind speed in April - De Smet, SD
  • Average wind speed in April: 11.1mph

The windiest month (with the highest average wind speed) is April (11.1mph).
The calmest months (with the lowest average wind speed) are July and August (8.6mph).

Average humidity in April
De Smet, SD

Average humidity in April - De Smet, SD
  • Average humidity in April: 67%

The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is September (62%).

Average rainfall in April
De Smet, SD

Average rainfall in April - De Smet, SD
  • Average rainfall in April: 1.77"

The wettest month (with the highest rainfall) is June (2.8").
The driest month (with the least rainfall) is January (0.55").

Average rainfall days in April
De Smet, SD

Average rainfall days in April - De Smet, SD
  • Average rainfall days in April: 11.3 days

The month with the highest number of rainy days is June (15.2 days).
The month with the least rainy days is February (1.8 days).

Average snowfall in April
De Smet, SD

Average snowfall in April - De Smet, SD
  • Average snowfall in April: 2.68"

The month with the highest snowfall is February (3.54").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in April
De Smet, SD

Average snowfall days in April - De Smet, SD
  • Average snowfall days in April: 3 days

The month with the highest number of snowfall days is December (9.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in April /
Average sunshine in April
De Smet, SD

Average daylight in April / Average sunshine in April - De Smet, 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 5min

The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

Average sunshine days in April
De Smet, SD

Average sunshine days in April - De Smet, SD
  • Average sunshine days in April: 14.8 days

The month with the most sunshine days is November (21.8 days).
The month with the least sunshine days is June (12.3 days).

Average UV index in April
De Smet, SD

Average UV index in April - De Smet, SD
  • Average UV index in April: 4

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

Average cloud cover in April
De Smet, SD

Average cloud cover in April - De Smet, SD
  • Average cloud cover in April: 43

The month with the most cloud cover is January (Cloud cover 54).
The month with the least cloud cover is July (Cloud cover 22).

Average visibility in April
De Smet, SD

Average visibility in April - De Smet, 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).

De Smet, South Dakota, USA

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