Climate and monthly weather forecast
Marion, SD

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Weather in January

January, the same as December, in Marion, South Dakota, is another subzero cold winter month, with an average temperature varying between 24.3°F (-4.3°C) and 10.8°F (-11.8°C). In Marion, the lowest average temperatures are observed in January, with a high of 24.3°F (-4.3°C) and a low of 10.8°F (-11.8°C). Weather in January »

Weather in February

February, the last month of the winter in Marion, is also a subzero cold month, with an average temperature fluctuating between 27.9°F (-2.3°C) and 14.2°F (-9.9°C). February reports an average high-temperature of a still freezing cold 27.9°F (-2.3°C), slightly varied from January's 24.3°F (-4.3°C). Weather in February »

Weather in March

The first month of the spring, March, is a chilly month in Marion, South Dakota, with an average temperature fluctuating between 28.8°F (-1.8°C) and 44.2°F (6.8°C). March signals a significant shift in the average high-temperature, soaring from February's subzero cold 27.9°F (-2.3°C) to a frosty 44.2°F (6.8°C). Weather in March »

Weather in April

April in Marion, South Dakota, is a refreshing spring month, with temperature in the range of an average high of 56.7°F (13.7°C) and an average low of 39.7°F (4.3°C). With the transition into April, Marion experiences an increase in average high-temperatures, moving up from a frosty 44.2°F (6.8°C) in March to a mild 56.7°F (13.7°C). Weather in April »

Weather in May

May, the last month of the spring in Marion, is an agreeable month, with temperature in the range of an average low of 50.7°F (10.4°C) and an average high of 68.4°F (20.2°C). Marion, South Dakota, experiences a temperature shift with the start of May, with average high-temperatures moving from a mild 56.7°F (13.7°C) in April to a pleasant 68.4°F (20.2°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Marion, South Dakota, with an average temperature varying between 60.8°F (16°C) and 78.3°F (25.7°C). In June, the average high-temperature increases from an agreeable 68.4°F (20.2°C) in May to a moderately hot 78.3°F (25.7°C). Weather in June »

Weather in July

July, like June, in Marion, South Dakota, is another warm summer month, with an average temperature varying between 63.7°F (17.6°C) and 83.3°F (28.5°C). Marion notes the warmest temperatures in July, with a high average of 83.3°F (28.5°C) and a low of 63.7°F (17.6°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 Marion, South Dakota, with an average temperature fluctuating between 60.4°F (15.8°C) and 81.7°F (27.6°C). August experiences an average high-temperature of a still warm 81.7°F (27.6°C), barely different from July's 83.3°F (28.5°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in Marion, South Dakota, with an average temperature varying between 54°F (12.2°C) and 74.7°F (23.7°C). The shift from August to September includes a minor decrease in the average high-temperature, lightly dropping from a warm 81.7°F (27.6°C) to a still moderately hot 74.7°F (23.7°C). Weather in September »

Weather in October

October, like September, is another mild autumn month in Marion, South Dakota, with an average temperature ranging between max 58.1°F (14.5°C) and min 41.9°F (5.5°C). The shift from September to October is characterized by a clear decrease in the average high-temperature, reducing from a moderately hot 74.7°F (23.7°C) to a mild 58.1°F (14.5°C). Weather in October »

Weather in November

November, the last month of the autumn in Marion, is another chilly month, with an average temperature varying between 44.2°F (6.8°C) and 29.8°F (-1.2°C). November shows a mild decline in the average high-temperature, falling from October's refreshing 58.1°F (14.5°C) to a chilly 44.2°F (6.8°C). Weather in November »

Weather in December

The first month of the winter, December, is still a freezing cold month in Marion, South Dakota, with temperature in the range of an average low of 16.3°F (-8.7°C) and an average high of 28.2°F (-2.1°C). The arrival of December signals a clear decrease in the average high-temperature, falling from a chilly 44.2°F (6.8°C) in November to a freezing cold 28.2°F (-2.1°C). Weather in December »
Updated: Aug 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest time of year?

In Marion, the average lowest temperatures are observed in January, with a high of 24.3°F (-4.3°C) and a low of 10.8°F (-11.8°C).

What is the most humid month in Marion?

The most humid month in Marion is January, with an average relative humidity of 87%.

What is the driest month in Marion?

The months with the least rainfall are January, February and November Rain falls for 3.3 days and accumulates 0.47" (12mm) of rain.

How many days does it rain?

Throughout the year, there are 111.7 rainfall days, and 17.76" (451mm) of precipitation is accumulated.

When does it snow?

Months with snowfall are January through May, October through December.

How much does it snow?

Throughout the year, there are 38.7 snowfall days, and 12.76" (324mm) of snow is accumulated.

What is the month with the least sunshine?

With an average of 4.2h of sunshine, January has the least sunshine of the year.

What is the snowiest month?

February is the month with the most snowfall. Snow falls for 8.2 days and accumulates 2.64" (67mm) of snow.

When is Daylight Saving Time (DST)?

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?

June is the month with the most rainfall. Rain falls for 16 days and accumulates 2.91" (74mm) of precipitation.

When it does not snow?

In Marion, South Dakota, snow does not fall in June through September.

When are the longest days?

The month with the longest days is June, with an average of 15h and 24min of daylight.

When is the highest UV index?

The months with the highest UV index are June and July, with an average maximum UV index of 6.

What part of the year is the hottest?

July, characterized by an average high temperature of 83.3°F (28.5°C) and a low temperature of 63.7°F (17.6°C), is generally the warmest month.

What month has the most sunshine?

The month with the most sunshine is July, with an average of 10.7h of sunshine.

What is the least humid month?

With an average relative humidity of 66%, October is the least humid month.

When is the lowest UV index?

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

What is the month with the shortest days in Marion?

December has the shortest days of the year, with an average of 9h and 0min of daylight.

Average temperature
Marion, SD

Average temperature - Marion, SD

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (24.3°F).

The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).

Average pressure
Marion, SD

Average pressure - Marion, SD

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

Average wind speed
Marion, SD

Average wind speed - Marion, SD

The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.9mph).

Average humidity
Marion, SD

Average humidity - Marion, SD

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (66%).

Average rainfall
Marion, SD

Average rainfall - Marion, SD

The wettest month (with the highest rainfall) is June (2.91").
The driest months (with the least rainfall) are January, February and November (0.47").

Average rainfall days
Marion, SD

Average rainfall days - Marion, SD

The months with the highest number of rainy days are May and June (16 days).
The month with the least rainy days is February (2.5 days).

Average snowfall
Marion, SD

Average snowfall - Marion, SD

The month with the highest snowfall is February (2.64").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days
Marion, SD

Average snowfall days - Marion, SD

The month with the highest number of snowfall days is January (9.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine
Marion, SD

Average daylight / Average sunshine - Marion, SD

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).

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

Average sunshine days
Marion, SD

Average sunshine days - Marion, SD

The month with the most sunshine days is November (22.5 days).
The month with the least sunshine days is June (11.5 days).

Average visibility
Marion, SD

Average visibility - Marion, 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).

Marion, South Dakota, USA

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