April weather forecast
Vivian, SD

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Weather in April

April in Vivian, South Dakota, is a mild spring month, with an average temperature fluctuating between 38.5°F (3.6°C) and 56.1°F (13.4°C).

Temperature

With the onset of April, Vivian's average high-temperature sees a rise, moving from March's frosty 44.1°F (6.7°C) to a moderate 56.1°F (13.4°C). During the month of April, Vivian experiences a steady low-temperature average of 38.5°F (3.6°C).

Humidity

In Vivian, the average relative humidity in April is 63%.

Rainfall

In Vivian, in April, during 10.8 rainfall days, 1.38" (35mm) of precipitation is typically accumulated. In Vivian, during the entire year, the rain falls for 98.5 days and collects up to 13.7" (348mm) of precipitation.

Snowfall

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

Daylight

In Vivian, the average length of the day in April is 13h and 29min.
On the first day of April, sunrise is at 7:20 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 6:32 am and sunset at 8:43 pm CDT.

Sunshine

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

UV index

In April, the average daily maximum UV index in Vivian is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for average individuals.
Note: In April, the maximum UV index of 3 translates into these guidelines:
Adopt protective measures - It is advised to guard against sun damage. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Opt for tightly woven and loose clothing to enhance protection from the Sun. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.

Frequently asked questions

What is the temperature in April?

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

What is the average humidity in April?

The average relative humidity in April is 63%.

How much does it rain in April?

In April, the rain falls for 10.8 days. Throughout April, 1.38" (35mm) of precipitation is accumulated.

How many days does it snow in April?

In Vivian, in April, during 3.1 snowfall days, 1.61" (41mm) of snow is typically accumulated.

How many hours of daylight does Vivian have in April?

In April, the average day length is 13h and 29min.

When are sunrise and sunset in April?

In April, on the first day of the month, sunrise is at 7:20 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 6:32 am and sunset at 8:43 pm CDT.

How long on average sun shines in April?

In April, the average sunshine duration is 8.1h.

What is the UV index intensity in April?

The average daily maximum UV index in April is 3. A UV Index value of 3 to 5 symbolizes a medium health risk from unprotected exposure to 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
Vivian, SD

Average temperature in April - Vivian, 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).

Average pressure in April
Vivian, SD

Average pressure in April - Vivian, 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).

Average wind speed in April
Vivian, SD

Average wind speed in April - Vivian, 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).

Average humidity in April
Vivian, SD

Average humidity in April - Vivian, 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%).

Average rainfall in April
Vivian, SD

Average rainfall in April - Vivian, 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").

Average rainfall days in April
Vivian, SD

Average rainfall days in April - Vivian, 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).

Average snowfall in April
Vivian, SD

Average snowfall in April - Vivian, 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").

Average snowfall days in April
Vivian, SD

Average snowfall days in April - Vivian, 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).

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

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

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in April: 8h and 1min

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).

Average sunshine days in April
Vivian, SD

Average sunshine days in April - Vivian, 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).

Average UV index in April
Vivian, SD

Average UV index in April - Vivian, 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).

Average cloud cover in April
Vivian, SD

Average cloud cover in April - Vivian, 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).

Average visibility in April
Vivian, SD

Average visibility in April - Vivian, 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).

Vivian, South Dakota, USA

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