Climate and monthly weather forecast
Plana, SD

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Weather in January

January, like December, is a freezing cold winter month in Plana, South Dakota, with an average temperature varying between 6.3°F (-14.3°C) and 20.7°F (-6.3°C). Plana's coldest weather arrives in January, when temperatures average a high of 20.7°F (-6.3°C) and a low of 6.3°F (-14.3°C). Weather in January »

Weather in February

February, the last month of the winter in Plana, is also a subzero cold month, with an average temperature ranging between max 23.7°F (-4.6°C) and min 9.1°F (-12.7°C). Plana experiences a recorded average high-temperature of a still freezing cold 23.7°F (-4.6°C) in February, closely aligned with January's 20.7°F (-6.3°C). Weather in February »

Weather in March

The first month of the spring, March, is a wintry month in Plana, South Dakota, with temperature in the range of an average low of 24.8°F (-4°C) and an average high of 39.7°F (4.3°C). The rise of average high-temperatures is noticeable in March, with an increase from a subzero cold 23.7°F (-4.6°C) in February to an icy 39.7°F (4.3°C). Weather in March »

Weather in April

April in Plana, South Dakota, is a fresh spring month, with an average temperature ranging between min 36.9°F (2.7°C) and max 54.1°F (12.3°C). Plana, South Dakota, experiences a clear temperature upsurge in April, with average high-temperatures moving from an icy 39.7°F (4.3°C) in March to a cool 54.1°F (12.3°C). Weather in April »

Weather in May

The last month of the spring, May, is an enjoyable month in Plana, South Dakota, with an average temperature ranging between min 48.2°F (9°C) and max 66.7°F (19.3°C). The arrival of May brings a change in Plana's weather, with average high-temperatures moving from April's fresh 54.1°F (12.3°C) to an enjoyable 66.7°F (19.3°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Plana, South Dakota, with an average temperature varying between 57.6°F (14.2°C) and 76.8°F (24.9°C). June's arrival brings a change in high-temperatures, moving from a comfortable 66.7°F (19.3°C) in May to a moderately hot 76.8°F (24.9°C). Weather in June »

Weather in July

July, like June, in Plana, South Dakota, is a moderately hot summer month, with an average temperature ranging between max 84.7°F (29.3°C) and min 63.1°F (17.3°C). July stands out as Plana'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). For most parts of July, the heat index is computed to be a hot 89.6°F (32°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Plana, South Dakota, with temperature in the range of an average low of 61°F (16.1°C) and an average high of 83.1°F (28.4°C). The shift into August reveals an average high-temperature of a still moderately hot 83.1°F (28.4°C), closely mirroring July's climate. Weather in August »

Weather in September

September, the first month of the autumn in Plana, is still a warm month, with temperature in the range of an average low of 52.9°F (11.6°C) and an average high of 74.3°F (23.5°C). Start of September brings a slight shift in the average high-temperature, dipping a bit from August's 83.1°F (28.4°C) to a still warm 74.3°F (23.5°C). Weather in September »

Weather in October

October, the same as September, in Plana, South Dakota, is another mild autumn month, with an average temperature varying between 56.3°F (13.5°C) and 40.1°F (4.5°C). October witnesses a clear temperature decrease, falling from a warm 74.3°F (23.5°C) in September to a moderate 56.3°F (13.5°C). Weather in October »

Weather in November

The last month of the autumn, November, is another cold month in Plana, South Dakota, with temperature in the range of an average low of 26.8°F (-2.9°C) and an average high of 41.7°F (5.4°C). The onset of November marks a clear decrease in the average high-temperature, dropping from a refreshing 56.3°F (13.5°C) in October to an icy 41.7°F (5.4°C). Weather in November »

Weather in December

December, the first month of the winter in Plana, is also a subzero cold month, with an average temperature fluctuating between 25°F (-3.9°C) and 12.7°F (-10.7°C). The changeover to December signals a significant decrease in the average high-temperature, dropping from a cold 41.7°F (5.4°C) in November to a subzero cold 25°F (-3.9°C). Weather in December »
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Frequently asked questions

What is the coldest time of year in Plana?

In Plana, January records the average lowest temperatures, peaking at 20.7°F (-6.3°C) and reaching a low of 6.3°F (-14.3°C).

What is the most humid month in Plana?

With an average relative humidity of 88%, January is the most humid month in Plana, South Dakota.

What is the driest month in Plana?

January is the month with the least rainfall. Rain falls for 3 days and accumulates 0.59" (15mm) of precipitation.

How many days does it rain in Plana?

Throughout the year, there are 97.2 rainfall days, and 18.35" (466mm) of precipitation is accumulated.

When does it snow in Plana?

Months with snowfall in Plana, South Dakota, are January through May, October through December.

When does it snow the most in Plana?

January is the month with the most snowfall. Snow falls for 13 days and accumulates 3.82" (97mm) of snow.

How much does it snow in Plana?

In Plana, during the entire year, snow falls for 54.8 days and aggregates up to 19.13" (486mm) of snow.

What is the month with the least sunshine in Plana?

January has the least sunshine of the year in Plana, with an average of 3.9h of sunshine.

When is the lowest UV index in Plana?

The months with the lowest UV index in Plana are January, February and November, with an average maximum UV index of 1.

When is Daylight Saving Time (DST) in Plana?

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

What is the wettest month in Plana?

The month with the most rainfall is June, when the rain falls for 15 days and typically aggregates up to 3.46" (88mm) of precipitation.

When it does not snow in Plana?

June through September are months without snowfall.

When are the longest days in Plana?

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

What are the months with the highest UV index in Plana?

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

What are the warmest months in Plana?

Plana, South Dakota, experiences its highest temperatures in July, with an average peak of 84.7°F (29.3°C) and a low of 63.1°F (17.3°C).

What month has the most sunshine in Plana?

July has the most sunshine of the year in Plana, South Dakota, with an average of 11.1h of sunshine.

What are the least humid months in Plana?

The months with the lowest humidity are August and September, with an average relative humidity of 60%.

What is the month with the shortest days in Plana?

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

Average pressure
Plana, SD

Average pressure - Plana, SD

The month with the highest atmospheric pressure is February (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

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Average wind speed
Plana, SD

Average wind speed - Plana, SD

The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (8.3mph).

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Average humidity
Plana, SD

Average humidity - Plana, SD

The month with the highest relative humidity is January (88%).
The months with the lowest relative humidity are August and September (60%).

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Average rainfall
Plana, SD

Average rainfall - Plana, SD

The wettest month (with the highest rainfall) is June (3.46").
The driest month (with the least rainfall) is January (0.59").

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Average rainfall days
Plana, SD

Average rainfall days - Plana, SD

The month with the highest number of rainy days is June (15 days).
The month with the least rainy days is February (2 days).

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Average snowfall
Plana, SD

Average snowfall - Plana, SD

The month with the highest snowfall is January (3.82").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Plana, SD

Average snowfall days - Plana, SD

The month with the highest number of snowfall days is January (13 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Plana, SD

Average daylight / Average sunshine - Plana, 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 July (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

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Average sunshine days
Plana, SD

Average sunshine days - Plana, SD

The month with the most sunshine days is November (20.9 days).
The month with the least sunshine days is June (12.7 days).

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Average UV index
Plana, SD

Average UV index - Plana, 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 and November (UV index 1).

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Average visibility
Plana, SD

Average visibility - Plana, SD

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).

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Plana, South Dakota, USA

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