April weather forecast
Sioux Falls, SD

The Sioux Falls in South Dakota, flowing downstream over rocks under the perfect evening skyline
The Sioux Falls in South Dakota, flowing downstream over rocks under the perfect evening skyline

Weather in April

April in Sioux Falls, South Dakota, is a mild spring month, with an average temperature fluctuating between 38.5°F (3.6°C) and 55.4°F (13°C).

Temperature

In April, the average high-temperature rises from a frosty 43.2°F (6.2°C) in March to a mild 55.4°F (13°C). The average low-temperature, in Sioux Falls, is 38.5°F (3.6°C).

Humidity

In Sioux Falls, the average relative humidity in April is 69%.

Rainfall

In Sioux Falls, in April, during 12.5 rainfall days, 2.13" (54mm) of precipitation is typically accumulated. In Sioux Falls, South Dakota, during the entire year, the rain falls for 117.1 days and collects up to 20.71" (526mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Sioux Falls, during 2.8 snowfall days, 2.09" (53mm) of snow is typically accumulated. Throughout the year, there are 48.7 snowfall days, and 18.23" (463mm) of snow is accumulated.

Daylight

In Sioux Falls, the average length of the day in April is 13h and 28min.
On the first day of April in Sioux Falls, sunrise is at 7:07 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 6:20 am and sunset at 8:27 pm CDT.

Sunshine

In April, the average sunshine in Sioux Falls is 8h.

UV index

The average daily maximum UV index in April is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: In April, the average maximum UV index of 3 translate into the following recommendations:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
[Resources]

FAQ

What is the temperature in April in Sioux Falls?

The average high-temperature, in April, in Sioux Falls, South Dakota, is 55.4°F (13°C), while the average low-temperature is 38.5°F (3.6°C).

What is the average humidity in April in Sioux Falls?

The average relative humidity in April in Sioux Falls is 69%.

How much does it rain in Sioux Falls in April?

In April, in Sioux Falls, South Dakota, the rain falls for 12.5 days. Throughout April, 2.13" (54mm) of precipitation is accumulated.

How much does it snow in Sioux Falls in April?

In Sioux Falls, South Dakota, in April, snow falls for 2.8 days, with typically accumulated 2.09" (53mm) of snow.

What is the average length of the day in April in Sioux Falls?

In Sioux Falls, South Dakota, the average day length in April is 13h and 28min.

What time are sunrise and sunset in April in Sioux Falls?

On the first day of April in Sioux Falls, sunrise is at 7:07 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 6:20 am and sunset at 8:27 pm CDT.

How many hours of sunshine does Sioux Falls have in April?

The average sunshine duration in April in Sioux Falls is 8h.

How high is the UV index in April in Sioux Falls?

The average daily maximum UV index in April in Sioux Falls 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
Sioux Falls, SD

Average temperature in April - Sioux Falls, SD
  • Average high temperature in April: 55.4°F

The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (23.4°F).

  • Average low temperature in April: 38.5°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (9.7°F).

[Resources]

Average pressure in April
Sioux Falls, SD

Average pressure in April - Sioux Falls, SD
  • Average pressure in April: 29.93"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).

[Resources]

Average wind speed in April
Sioux Falls, SD

Average wind speed in April - Sioux Falls, SD
  • Average wind speed in April: 11.3mph

The windiest month (with the highest average wind speed) is April (11.3mph).
The calmest month (with the lowest average wind speed) is July (8mph).

[Resources]

Average humidity in April
Sioux Falls, SD

Average humidity in April - Sioux Falls, SD
  • Average humidity in April: 69%

The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is October (66%).

[Resources]

Average rainfall in April
Sioux Falls, SD

Average rainfall in April - Sioux Falls, SD
  • Average rainfall in April: 2.13"

The wettest month (with the highest rainfall) is June (3.27").
The driest months (with the least rainfall) are January, February and November (0.67").

[Resources]

Average rainfall days in April
Sioux Falls, SD

Average rainfall days in April - Sioux Falls, SD
  • Average rainfall days in April: 12.5 days

The month with the highest number of rainy days is June (17.8 days).
The month with the least rainy days is February (3 days).

[Resources]

Average snowfall in April
Sioux Falls, SD

Average snowfall in April - Sioux Falls, SD
  • Average snowfall in April: 2.09"

The month with the highest snowfall is February (4.25").
The months with the least snowfall are June, July, August and September (0").

[Resources]

Average snowfall days in April
Sioux Falls, SD

Average snowfall days in April - Sioux Falls, SD
  • Average snowfall days in April: 2.8 days

The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

[Resources]

Average daylight in April /
Average sunshine in April
Sioux Falls, SD

Average daylight in April / Average sunshine in April - Sioux Falls, SD
  • Average daylight in April: 13h and 28min

The month with the longest days is June (Average daylight: 15h and 22min).
The month with the shortest days is December (Average daylight: 9h and 1min).

  • Average sunshine in April: 8h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

[Resources]

Average sunshine days in April
Sioux Falls, SD

Average sunshine days in April - Sioux Falls, SD
  • Average sunshine days in April: 13 days

The month with the most sunshine days is November (20.6 days).
The month with the least sunshine days is June (10 days).

[Resources]

Average UV index in April
Sioux Falls, SD

Average UV index in April - Sioux Falls, 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, February, November and December (UV index 2).

[Resources]

Average cloud cover in April
Sioux Falls, SD

Average cloud cover in April - Sioux Falls, SD
  • Average cloud cover in April: 45

The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is July (Cloud cover 27).

[Resources]

Average visibility in April
Sioux Falls, SD

Average visibility in April - Sioux Falls, 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).

[Resources]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location