Climate and monthly weather forecast
Nisland, SD

Weather in January

January, the same as December, in Nisland, South Dakota, is another subzero cold winter month, with an average temperature ranging between max 30.7°F (-0.7°C) and min 17.6°F (-8°C). In January, the average high-temperature is practically the same as in December - a still subzero cold 30.7°F (-0.7°C). Weather in January »

Weather in February

February, the last month of the winter in Nisland, is another freezing cold month, with an average temperature ranging between max 31.3°F (-0.4°C) and min 17.1°F (-8.3°C). In Nisland, the average high-temperature in February is practically the same as in January - a still freezing cold 31.3°F (-0.4°C). Weather in February »

Weather in March

The first month of the spring, March, is a chilly month in Nisland, South Dakota, with an average temperature fluctuating between 44.2°F (6.8°C) and 27.9°F (-2.3°C). In Nisland, the average high-temperature in March rises from a subzero cold 31.3°F (-0.4°C) in February to a chilly 44.2°F (6.8°C). Weather in March »

Weather in April

April is a fresh spring month in Nisland, South Dakota, with an average temperature fluctuating between 52.9°F (11.6°C) and 34.9°F (1.6°C). In Nisland, the average high-temperature in April marginally rises from a frosty 44.2°F (6.8°C) in March to a cool 52.9°F (11.6°C). Weather in April »

Weather in May

The last month of the spring, May, is an enjoyable month in Nisland, South Dakota, with temperature in the range of an average high of 63.5°F (17.5°C) and an average low of 44.6°F (7°C). In May, the average high-temperature increases from a cool 52.9°F (11.6°C) in April to an enjoyable 63.5°F (17.5°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Nisland, South Dakota, with an average temperature varying between 76.3°F (24.6°C) and 55.2°F (12.9°C). In Nisland, the average high-temperature in June increases from an enjoyable 63.5°F (17.5°C) in May to a warm 76.3°F (24.6°C). Weather in June »

Weather in July

July, the same as June, is a moderately hot summer month in Nisland, South Dakota, with an average temperature ranging between min 63°F (17.2°C) and max 85.8°F (29.9°C). July is the warmest month, with an average high-temperature of 85.8°F (29.9°C) and an average low-temperature of 63°F (17.2°C). The average heat index in July is computed to be a tropical 87.8°F (31°C). Weather in July »

Weather in August

August, the last month of the summer in Nisland, is also a moderately hot month, with an average temperature varying between 83.1°F (28.4°C) and 61.5°F (16.4°C). In Nisland, the average high-temperature in August is almost the same as in July - a still moderately hot 83.1°F (28.4°C). Weather in August »

Weather in September

September, the first month of the autumn in Nisland, is still a warm month, with an average temperature fluctuating between 53.6°F (12°C) and 73.9°F (23.3°C). In Nisland, the average high-temperature in September drops from a warm 83.1°F (28.4°C) in August to a still moderately hot 73.9°F (23.3°C). Weather in September »

Weather in October

October, like September, is another mild autumn month in Nisland, South Dakota, with an average temperature ranging between min 39.4°F (4.1°C) and max 55.9°F (13.3°C). In October, the average high-temperature significantly decreases from a warm 73.9°F (23.3°C) in September to a moderate 55.9°F (13.3°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a frosty month in Nisland, South Dakota, with an average temperature fluctuating between 43.9°F (6.6°C) and 28.9°F (-1.7°C). In Nisland, the average high-temperature in November drops from a mild 55.9°F (13.3°C) in October to a frosty 43.9°F (6.6°C). Weather in November »

Weather in December

The first month of the winter, December, is still a freezing cold month in Nisland, South Dakota, with an average temperature ranging between max 30.4°F (-0.9°C) and min 18.1°F (-7.7°C). The coldest month is December, with an average high-temperature of 30.4°F (-0.9°C) and an average low-temperature of 18.1°F (-7.7°C). Weather in December »
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FAQ

What is the most humid month in Nisland?

The most humid month is January, with an average relative humidity of 80%.

What is the driest month in Nisland?

January is the month with the least rainfall in Nisland. Rain falls for 2.8 days and accumulates 0.43" (11mm) of precipitation.

How many days does it rain in Nisland?

In Nisland, during the entire year, the rain falls for 100 days and collects up to 12.83" (326mm) of precipitation.

When does it snow in Nisland?

January through May, September through December are months with snowfall.

How much does it snow in Nisland?

In Nisland, during the entire year, snow falls for 52.1 days and aggregates up to 23.54" (598mm) of snow.

What are the months with the lowest UV index in Nisland?

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.

What is the month with the least sunshine in Nisland?

February has the least sunshine of the year, with an average of 5.5h of sunshine.

When is Daylight Saving Time (DST) in Nisland?

On Sunday, March 12. 2023, at 2:00 am, Daylight Saving Time starts, and the time zone changes from MST to MDT. Daylight Saving Time ends Sunday, November 5. 2023, at 2:00 am, and the time zone reverts from MDT to MST.

When does it snow the most in Nisland?

April is the month with the most snowfall. Snow falls for 5.1 days and accumulates 4.88" (124mm) of snow.

What is the wettest month in Nisland?

The month with the most rainfall in Nisland, South Dakota, is May, when the rain falls for 14.3 days and typically aggregates up to 2.05" (52mm) of precipitation.

When it does not snow in Nisland?

June through August are months without snowfall.

When are the longest days in Nisland?

June has the longest days of the year, with an average of 15h and 31min of daylight.

When is the highest UV index in Nisland?

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

What is the warmest month in Nisland?

With an average high-temperature of 85.8°F (29.9°C) and an average low-temperature of 63°F (17.2°C), July is the warmest month in Nisland.

What is the least humid month in Nisland?

With an average relative humidity of 47%, August is the least humid month in Nisland.

What month has the most sunshine in Nisland?

August has the most sunshine of the year in Nisland, South Dakota, with an average of 11.9h of sunshine.

What is the coldest month in Nisland?

December is the coldest month in Nisland, with an average high-temperature of 30.4°F (-0.9°C) and an average low-temperature of 18.1°F (-7.7°C).

What is the month with the shortest days in Nisland?

December has the shortest days of the year in Nisland, with an average of 8h and 53min of daylight.

Average temperature
Nisland, SD

Average temperature - Nisland, SD

The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is December (30.4°F).

The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is February (17.1°F).

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Average pressure
Nisland, SD

Average pressure - Nisland, SD

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

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Average wind speed
Nisland, SD

Average wind speed - Nisland, SD

The windiest months (with the highest average wind speed) are January and October (10.4mph).
The calmest month (with the lowest average wind speed) is August (8.3mph).

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Average rainfall
Nisland, SD

Average rainfall - Nisland, SD

The wettest month (with the highest rainfall) is May (2.05").
The driest month (with the least rainfall) is January (0.43").

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Average rainfall days
Nisland, SD

Average rainfall days - Nisland, SD

The month with the highest number of rainy days is May (14.3 days).
The month with the least rainy days is January (2.8 days).

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Average snowfall
Nisland, SD

Average snowfall - Nisland, SD

The month with the highest snowfall is April (4.88").
The months with the least snowfall are June, July and August (0").

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Average snowfall days
Nisland, SD

Average snowfall days - Nisland, SD

The month with the highest number of snowfall days is February (10.3 days).
The months with the least snowfall days are June, July and August (0 days).

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Average daylight / Average sunshine
Nisland, SD

Average daylight / Average sunshine - Nisland, SD

The month with the longest days is June (Average daylight: 15h and 31min).
The month with the shortest days is December (Average daylight: 8h and 53min).

The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 30min).

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Average sunshine days
Nisland, SD

Average sunshine days - Nisland, SD

The month with the most sunshine days is November (21.3 days).
The month with the least sunshine days is April (12.6 days).

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Average UV index
Nisland, SD

Average UV index - Nisland, SD

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average visibility
Nisland, SD

Average visibility - Nisland, 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).

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