Climate and monthly weather forecast
Roswell, SD

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Weather in January

January, the same as December, in Roswell, South Dakota, is a freezing cold winter month, with an average temperature ranging between min 10.2°F (-12.1°C) and max 24.4°F (-4.2°C). January, known for its average high temperature of 24.4°F (-4.2°C) and an average low temperature of 10.2°F (-12.1°C), is the coldest month. Weather in January »

Weather in February

The last month of the winter, February, is another freezing cold month in Roswell, South Dakota, with temperature in the range of an average low of 14.2°F (-9.9°C) and an average high of 28.6°F (-1.9°C). February denotes a minimal variation in the average high-temperature to a still subzero cold 28.6°F (-1.9°C) from January's 24.4°F (-4.2°C). Weather in February »

Weather in March

March, the first month of the spring in Roswell, is a frosty month, with an average temperature varying between 27.9°F (-2.3°C) and 44.4°F (6.9°C). Roswell's transition into March marks a considerable rise in the average high-temperature, moving up from a freezing cold 28.6°F (-1.9°C) in February to a frosty 44.4°F (6.9°C). Weather in March »

Weather in April

April in Roswell, South Dakota, is a mild spring month, with an average temperature ranging between max 56.8°F (13.8°C) and min 38.8°F (3.8°C). Roswell's transition into April sees a rise in the average high-temperature, advancing from a chilly 44.4°F (6.9°C) in March to a refreshing 56.8°F (13.8°C). Weather in April »

Weather in May

May, the last month of the spring in Roswell, is a pleasant month, with temperature in the range of an average low of 50°F (10°C) and an average high of 68.4°F (20.2°C). With the onset of May, the average high-temperature slightly shifts from April's mild 56.8°F (13.8°C) to an agreeable 68.4°F (20.2°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Roswell, South Dakota, with an average temperature ranging between min 60.3°F (15.7°C) and max 79°F (26.1°C). June's arrival is marked by an increase in the average high-temperature, moving from a pleasant 68.4°F (20.2°C) in May to a moderately hot 79°F (26.1°C). Weather in June »

Weather in July

July, like June, in Roswell, South Dakota, is another warm summer month, with an average temperature fluctuating between 64.6°F (18.1°C) and 85.6°F (29.8°C). The warmest temperatures occur during July, when averages reach a peak of 85.6°F (29.8°C) and a low of 64.6°F (18.1°C). The heat index for July is computed to be a hot 93.2°F (34°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Roswell, South Dakota, with an average temperature ranging between max 84.4°F (29.1°C) and min 62.1°F (16.7°C). The commencement of August introduces an average high-temperature of a still moderately hot 84.4°F (29.1°C), closely mirroring the preceding month. Weather in August »

Weather in September

September, the first month of the autumn in Roswell, is still a warm month, with temperature in the range of an average high of 76.1°F (24.5°C) and an average low of 55°F (12.8°C). With September's onset, the weather reveals a slight temperature decrease, transitioning from 84.4°F (29.1°C) in August to a still moderately hot 76.1°F (24.5°C). Weather in September »

Weather in October

October, like September, is another refreshing autumn month in Roswell, South Dakota, with an average temperature varying between 58.5°F (14.7°C) and 42.1°F (5.6°C). As October sets, the average high-temperature displays a significant decrease, moving down from a moderately hot 76.1°F (24.5°C) in September to a mild 58.5°F (14.7°C). Weather in October »

Weather in November

November, the last month of the autumn in Roswell, is another chilly month, with an average temperature fluctuating between 45°F (7.2°C) and 29.5°F (-1.4°C). Roswell's weather changes with the onset of November, slightly falling from a mild 58.5°F (14.7°C) in October to a frosty 45°F (7.2°C). Weather in November »

Weather in December

December, the first month of the winter in Roswell, is still a freezing cold month, with an average temperature varying between 28.6°F (-1.9°C) and 16°F (-8.9°C). The shift into December brings a noticeable decrease in the average high-temperature, falling from a chilly 45°F (7.2°C) in November to a freezing cold 28.6°F (-1.9°C). Weather in December »
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Frequently asked questions

What part of the year is the coldest in Roswell?

Roswell, South Dakota, reaches its average lowest temperatures in January, measuring 24.4°F (-4.2°C) at the peak and 10.2°F (-12.1°C) at the lowest.

What is the most humid month in Roswell?

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

How much does it rain in Roswell?

Throughout the year, in Roswell, there are 93.2 rainfall days, and 11.3" (287mm) of precipitation is accumulated.

When does it snow in Roswell?

January through April, October through December are months with snowfall.

How many days does it snow in Roswell?

In Roswell, South Dakota, during the entire year, snow falls for 35.3 days and aggregates up to 7.17" (182mm) of snow.

What is the month with the least sunshine in Roswell?

With an average of 4.4h of sunshine, January has the least sunshine of the year.

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

With an average maximum UV index of 1, January is the month with the lowest UV index.

What is the driest month in Roswell?

February and November are months with the least rain in Roswell when the rain falls for 1.9 days and typically aggregates up to 0.28" (7mm) of rain.

When does it snow the most in Roswell?

February is the month with the most snowfall in Roswell, South Dakota. Snow falls for 7.3 days and accumulates 1.42" (36mm) of snow.

When is Daylight Saving Time (DST) in Roswell?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Roswell, 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 rainiest month in Roswell?

The month with the most rainfall is May, when the rain falls for 13.5 days and typically aggregates up to 1.65" (42mm) of precipitation.

When it does not snow in Roswell?

In Roswell, South Dakota, snow does not fall in May through September.

When are the longest days in Roswell?

June has the longest days of the year in Roswell, South Dakota, with an average of 15h and 24min of daylight.

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

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

What time of the year is the hottest in Roswell?

July, having an average high-temperature of 85.6°F (29.8°C) and an average low-temperature of 64.6°F (18.1°C), is the warmest month in Roswell.

What month has the most sunshine in Roswell?

July has the most sunshine of the year, with an average of 11.1h of sunshine.

What are the least humid months in Roswell?

The months with the lowest humidity in Roswell are September and October, with an average relative humidity of 63%.

What is the month with the shortest days in Roswell?

The month with the shortest days in Roswell is December, with an average of 9h and 0min of daylight.

Average pressure
Roswell, SD

Average pressure - Roswell, SD

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

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Average wind speed
Roswell, SD

Average wind speed - Roswell, 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 (8.6mph).

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Average humidity
Roswell, SD

Average humidity - Roswell, SD

The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are September and October (63%).

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Average rainfall
Roswell, SD

Average rainfall - Roswell, SD

The wettest month (with the highest rainfall) is May (1.65").
The driest months (with the least rainfall) are February and November (0.28").

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Average rainfall days
Roswell, SD

Average rainfall days - Roswell, SD

The month with the highest number of rainy days is June (13.6 days).
The month with the least rainy days is February (1.9 days).

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Average snowfall
Roswell, SD

Average snowfall - Roswell, SD

The month with the highest snowfall is February (1.42").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days
Roswell, SD

Average snowfall days - Roswell, SD

The month with the highest number of snowfall days is January (8.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Roswell, SD

Average daylight / Average sunshine - Roswell, 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: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

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Average sunshine days
Roswell, SD

Average sunshine days - Roswell, SD

The month with the most sunshine days is November (23.4 days).
The month with the least sunshine days is June (12.8 days).

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Average visibility
Roswell, SD

Average visibility - Roswell, 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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Roswell, South Dakota, USA

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