Climate and monthly weather forecast
Bison, SD

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Weather in January

January, like December, is a freezing cold winter month in Bison, South Dakota, with an average temperature fluctuating between 11.7°F (-11.3°C) and 25.2°F (-3.8°C). With average high temperatures of 25.2°F (-3.8°C) and lows of 11.7°F (-11.3°C), January is the coldest month. Weather in January »

Weather in February

The last month of the winter, February, is another freezing cold month in Bison, South Dakota, with an average temperature varying between 26.8°F (-2.9°C) and 13.5°F (-10.3°C). At the start of February, Bison's average high-temperature reaches a still freezing cold 26.8°F (-2.9°C), subtly different from the preceding month. Weather in February »

Weather in March

March, the first month of the spring in Bison, is a wintry month, with an average temperature varying between 26.1°F (-3.3°C) and 41.4°F (5.2°C). The shift from February to March brings a noticeable increase in the average high-temperature, escalating from a freezing cold 26.8°F (-2.9°C) to an icy 41.4°F (5.2°C). Weather in March »

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). 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). Weather in April »

Weather in May

May, the last month of the spring in Bison, is an enjoyable month, with temperature in the range of an average high of 64.9°F (18.3°C) and an average low of 46.2°F (7.9°C). May's arrival coincides with a rise in the average high-temperature, moving from April's fresh 52.3°F (11.3°C) to a comfortable 64.9°F (18.3°C). Weather in May »

Weather in June

June, the first month of the summer in Bison, is a warm month, with temperature in the range of an average high of 76.3°F (24.6°C) and an average low of 56.3°F (13.5°C). As Bison transitions into June, the average high-temperature is observed to rise from a comfortable 64.9°F (18.3°C) in May to a moderately hot 76.3°F (24.6°C). Weather in June »

Weather in July

July, the same as June, is another warm summer month in Bison, South Dakota, with temperature in the range of an average low of 63.1°F (17.3°C) and an average high of 84.7°F (29.3°C). Bison's July weather, with an average high temperature of 84.7°F (29.3°C) and an average low temperature of 63.1°F (17.3°C), tends to be the warmest of the year. The heat index in July is calculated to be a hot 86°F (30°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Bison, South Dakota, with an average temperature varying between 61.9°F (16.6°C) and 82.6°F (28.1°C). The average high-temperature during August registers at a still warm 82.6°F (28.1°C), maintaining a close resemblance to the previous month. Weather in August »

Weather in September

September, the first month of the autumn in Bison, is still a pleasant month, with temperature in the range of an average high of 73°F (22.8°C) and an average low of 54°F (12.2°C). September brings a drop in Bison's average high-temperature, falling from a moderately hot 82.6°F (28.1°C) in August to a pleasant 73°F (22.8°C). Weather in September »

Weather in October

October, the same as September, is a cool autumn month in Bison, South Dakota, with an average temperature ranging between min 39.4°F (4.1°C) and max 54.7°F (12.6°C). October signals a considerable drop in Bison's average high-temperature, reducing from an agreeable 73°F (22.8°C) in September to a fresh 54.7°F (12.6°C). Weather in October »

Weather in November

November, the last month of the autumn in Bison, is also an icy month, with temperature in the range of an average low of 27.5°F (-2.5°C) and an average high of 41.2°F (5.1°C). Bison in November undergoes a mild reduction in the average high-temperature, shifting from October's fresh 54.7°F (12.6°C) to a wintry 41.2°F (5.1°C). Weather in November »

Weather in December

The first month of the winter, December, is also a subzero cold month in Bison, South Dakota, with an average temperature fluctuating between 25.9°F (-3.4°C) and 14.4°F (-9.8°C). With the onset of December, Bison experiences a distinct temperature drop, with the average high-temperature reducing from November's cold 41.2°F (5.1°C) to a freezing cold 25.9°F (-3.4°C). Weather in December »
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the coldest months in Bison?

Temperature readings reach their annual highs in January, averaging 25.2°F (-3.8°C) and a minimum average of 11.7°F (-11.3°C).

What is the most humid month in Bison?

The most humid month is January, with an average relative humidity of 85%.

What is the driest month in Bison?

The month with the least rainfall in Bison, South Dakota, is January, when the rain falls for 2.9 days and typically collects 0.47" (12mm) of precipitation.

How many days does it rain in Bison?

In Bison, South Dakota, during the entire year, the rain falls for 101.3 days and collects up to 14.25" (362mm) of precipitation.

When does it snow in Bison?

January through May, October through December are months with snowfall in Bison, South Dakota.

How much does it snow in Bison?

In Bison, during the entire year, snow falls for 65.8 days and aggregates up to 21.42" (544mm) of snow.

What is the month with the least sunshine in Bison?

January has the least sunshine of the year in Bison, South Dakota, with an average of 4.6h of sunshine.

What is the snowiest month in Bison?

The month with the most snowfall in Bison is February, when snow falls for 12.9 days and typically aggregates up to 4.53" (115mm) of snow.

When is Daylight Saving Time (DST) in Bison?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from MST to MDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from MDT to MST.

What is the wettest month in Bison?

The month with the most rainfall in Bison, South Dakota, is June, when the rain falls for 15.1 days and typically aggregates up to 2.28" (58mm) of precipitation.

When it does not snow in Bison?

In Bison, snow does not fall in June through September.

When are the longest days in Bison?

With an average of 15h and 36min of daylight, June has the longest days of the year.

What is the month with the highest UV index in Bison?

June through August, with an average maximum UV index of 6, are months with the highest UV index in Bison, South Dakota.

What part of the year is the hottest in Bison?

July stands out as Bison's warmest month, with an average high-temperature of 84.7°F (29.3°C) and a low-temperature of 63.1°F (17.3°C).

What are the least humid months in Bison?

August and September, with an average relative humidity of 51%, are the least humid months.

What month has the most sunshine in Bison?

With an average of 11.5h of sunshine, August has the most sunshine of the year in Bison, South Dakota.

What is the month with the shortest days in Bison?

The month with the shortest days in Bison, South Dakota, is December, with an average of 8h and 48min of daylight.

What is the month with the lowest UV index in Bison?

The month with the lowest UV index is December, with an average maximum UV index of 1.

Average temperature
Bison, SD

Average temperature - Bison, SD

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).

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
Bison, SD

Average pressure - Bison, SD

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
Bison, SD

Average wind speed - Bison, SD

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
Bison, SD

Average humidity - Bison, SD

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

Average rainfall
Bison, SD

Average rainfall - Bison, SD

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
Bison, SD

Average rainfall days - Bison, SD

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
Bison, SD

Average snowfall - Bison, SD

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
Bison, SD

Average snowfall days - Bison, SD

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 / Average sunshine
Bison, SD

Average daylight / Average sunshine - Bison, SD

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).

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
Bison, SD

Average sunshine days - Bison, SD

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 visibility
Bison, SD

Average visibility - Bison, SD

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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