April weather forecast
Bison, SD

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Weather in April

April in Bison, South Dakota, is a cool spring month, with temperature in the range of an average high of 52.3°F (11.3°C) and an average low of 35.2°F (1.8°C).

Temperature

The shift from March to April brings an increase in the average high-temperature, moving from a cold 41.4°F (5.2°C) to a cool 52.3°F (11.3°C). Bison's average low-temperature is measured at a wintry 35.2°F (1.8°C) during April.

Humidity

The average relative humidity in April in Bison is 64%.

Rainfall

In April, the rain falls for 11.9 days. Throughout April, 1.38" (35mm) of precipitation is accumulated. Throughout the year, in Bison, South Dakota, there are 101.3 rainfall days, and 14.25" (362mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In April, in Bison, South Dakota, it is snowing for 5.8 days. Throughout April, 3.15" (80mm) of snow is accumulated. In Bison, South Dakota, during the entire year, snow falls for 65.8 days and aggregates up to 21.42" (544mm) of snow.

Daylight

The average length of the day in April in Bison is 13h and 34min.
On the first day of April in Bison, sunrise is at 6:28 am and sunset at 7:18 pm. On the last day of the month, sunrise is at 5:37 am and sunset at 7:55 pm MDT.

Sunshine

In Bison, the average sunshine in April is 8.5h.

UV index

In April, the average daily maximum UV index in Bison, South Dakota, is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: In April, an average UV index of 3 transforms into the following instructions:
Take precautions - Protection against sun damage is advised. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Bison in April?

The high-temperature in Bison during April is 52.3°F (11.3°C) and the low-temperature is 35.2°F (1.8°C).

What is the average humidity in April in Bison?

The average relative humidity in April is 64%.

How many days does it rain in April in Bison?

In Bison, South Dakota, in April, during 11.9 rainfall days, 1.38" (35mm) of precipitation is typically accumulated.

How many days does it snow in April in Bison?

In Bison, in April, snow falls for 5.8 days, with typically accumulated 3.15" (80mm) of snow.

How many hours of daylight does Bison have in April?

In April, the average day length in Bison, South Dakota, is 13h and 34min.

When is the sunrise / sunset in April in Bison?

In April, on the first day of the month, sunrise is at 6:28 am and sunset at 7:18 pm. On the last day of the month, in Bison, sunrise is at 5:37 am and sunset at 7:55 pm MDT.

How long on average sun shines in April in Bison?

In April, the average sunshine duration in Bison is 8.5h.

What is the UV index reading in April in Bison?

The average daily maximum UV index in April in Bison is 3. A UV Index of 3 to 5 symbolizes 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
Bison, SD

Average temperature in April - Bison, SD
  • Average high temperature in April: 52.3°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (25.2°F).

  • Average low temperature in April: 35.2°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 (11.7°F).

Average pressure in April
Bison, SD

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

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

Average wind speed in April
Bison, SD

Average wind speed in April - Bison, SD
  • Average wind speed in April: 11.7mph

The windiest month (with the highest average wind speed) is April (11.7mph).
The calmest month (with the lowest average wind speed) is August (9.6mph).

Average humidity in April
Bison, SD

Average humidity in April - Bison, SD
  • Average humidity in April: 64%

The month with the highest relative humidity is January (85%).
The months with the lowest relative humidity are August and September (51%).

Average rainfall in April
Bison, SD

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

The wettest month (with the highest rainfall) is June (2.28").
The driest month (with the least rainfall) is January (0.47").

Average rainfall days in April
Bison, SD

Average rainfall days in April - Bison, SD
  • Average rainfall days in April: 11.9 days

The month with the highest number of rainy days is June (15.1 days).
The month with the least rainy days is January (2.9 days).

Average snowfall in April
Bison, SD

Average snowfall in April - Bison, SD
  • Average snowfall in April: 3.15"

The month with the highest snowfall is February (4.53").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in April
Bison, SD

Average snowfall days in April - Bison, SD
  • Average snowfall days in April: 5.8 days

The month with the highest number of snowfall days is February (12.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in April / Average sunshine in April - Bison, SD
  • Average daylight in April: 13h and 4min

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in April: 8h and 3min

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

Average sunshine days in April
Bison, SD

Average sunshine days in April - Bison, SD
  • Average sunshine days in April: 12.3 days

The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is June (11.7 days).

Average UV index in April
Bison, SD

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

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in April
Bison, SD

Average cloud cover in April - Bison, SD
  • Average cloud cover in April: 44

The months with the most cloud cover are January and February (Cloud cover 52).
The months with the least cloud cover are July and August (Cloud cover 20).

Average visibility in April
Bison, SD

Average visibility in April - Bison, 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).

Bison, South Dakota, USA

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