Climate and monthly weather forecast
Cottonwood, SD

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Weather in January

January, the same as December, in Cottonwood, South Dakota, is a freezing cold winter month, with temperature in the range of an average high of 29.8°F (-1.2°C) and an average low of 16.7°F (-8.5°C). January tends to be the coldest month, with temperatures averaging a daily high of 29.8°F (-1.2°C) and a low of 16.7°F (-8.5°C). Weather in January »

Weather in February

February, the last month of the winter in Cottonwood, is an icy month, with an average temperature ranging between min 18.5°F (-7.5°C) and max 32.9°F (0.5°C). The shift from January to February is characterized by an average high-temperature of a cold 32.9°F (0.5°C), not significantly different from the 29.8°F (-1.2°C) of January. Weather in February »

Weather in March

March, the first month of the spring in Cottonwood, is a frosty month, with an average temperature varying between 30.6°F (-0.8°C) and 46.8°F (8.2°C). The onset of March brings a rise in the average high-temperature, elevating from an icy 32.9°F (0.5°C) in February to a frosty 46.8°F (8.2°C). Weather in March »

Weather in April

April in Cottonwood, South Dakota, is a moderate spring month, with an average temperature varying between 38.7°F (3.7°C) and 56.5°F (13.6°C). The onset of April marks an increase in the average high-temperature, moving from a chilly 46.8°F (8.2°C) in March to a mild 56.5°F (13.6°C). Weather in April »

Weather in May

May, the last month of the spring in Cottonwood, is an agreeable month, with an average temperature fluctuating between 49.6°F (9.8°C) and 68.2°F (20.1°C). The arrival of May brings an increase in high-temperatures, moving from a mild 56.5°F (13.6°C) in April to a pleasant 68.2°F (20.1°C). Weather in May »

Weather in June

The first month of the summer, June, is a moderately hot month in Cottonwood, South Dakota, with temperature in the range of an average low of 60.4°F (15.8°C) and an average high of 81.3°F (27.4°C). Cottonwood's June weather brings a rise in high-temperatures, moving from an agreeable 68.2°F (20.1°C) in May to a warm 81.3°F (27.4°C). Weather in June »

Weather in July

July is a tropical summer month in Cottonwood, South Dakota, with an average temperature varying between 68.5°F (20.3°C) and 89.2°F (31.8°C). July, recording an average high temperature of 89.2°F (31.8°C) and a low temperature of 68.5°F (20.3°C), is Cottonwood's warmest month. For most parts of July, the heat index is appraised at a hot 93.2°F (34°C). Weather in July »

Weather in August

The last month of the summer, August, is another hot month in Cottonwood, South Dakota, with an average temperature varying between 66.9°F (19.4°C) and 87.1°F (30.6°C). The commencement of August introduces an average high-temperature of a still hot 87.1°F (30.6°C), closely mirroring the preceding month. Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in Cottonwood, South Dakota, with an average temperature ranging between min 58.3°F (14.6°C) and max 77.5°F (25.3°C). September implies a gentle temperature shift, with average high-temperatures reducing from August's tropical 87.1°F (30.6°C) to a warm 77.5°F (25.3°C). Weather in September »

Weather in October

October, the same as September, in Cottonwood, South Dakota, is another refreshing autumn month, with an average temperature ranging between min 43°F (6.1°C) and max 59.2°F (15.1°C). October witnesses a clear temperature decrease, falling from a warm 77.5°F (25.3°C) in September to a mild 59.2°F (15.1°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a frosty month in Cottonwood, South Dakota, with temperature in the range of an average high of 46.4°F (8°C) and an average low of 31.1°F (-0.5°C). With November's onset, the weather shows a temperature decrease, transitioning from a mild 59.2°F (15.1°C) in October to a frosty 46.4°F (8°C). Weather in November »

Weather in December

December, the first month of the winter in Cottonwood, is also a subzero cold month, with an average temperature ranging between max 30.7°F (-0.7°C) and min 18°F (-7.8°C). December's arrival witnesses a distinct temperature drop, receding from November's chilly 46.4°F (8°C) to a subzero cold 30.7°F (-0.7°C). Weather in December »
Updated: Jun 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month?

January stands out as Cottonwood's coldest month, with an average high-temperature of 29.8°F (-1.2°C) and a low-temperature of 16.7°F (-8.5°C).

What is the most humid month in Cottonwood?

January is the most humid month in Cottonwood, with an average relative humidity of 81%.

What is the driest month?

January is the month with the least rainfall. Rain falls for 2.8 days and accumulates 0.39" (10mm) of precipitation.

How many days does it rain?

Throughout the year, there are 95.3 rainfall days, and 13.74" (349mm) of precipitation is accumulated.

When does it snow?

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

How many days does it snow in Cottonwood?

Throughout the year, there are 38.8 snowfall days, and 16.1" (409mm) of snow is accumulated.

What are the months with the least sunshine?

The months with the least sunshine are January and February, with an average of 5.2h of sunshine.

What is the snowiest month?

February is the month with the most snowfall. Snow falls for 8.9 days and accumulates 3.15" (80mm) 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 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 rainiest month?

The month with the most rainfall is May, when the rain falls for 13.5 days and typically aggregates up to 2.09" (53mm) of precipitation.

When it does not snow?

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

When are the longest days?

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

What part of the year is the hottest?

July is the warmest month, with an average high-temperature of 89.2°F (31.8°C) and an average low-temperature of 68.5°F (20.3°C).

When is the highest UV index?

With an average maximum UV index of 7, July is the month with the highest UV index.

What month has the most sunshine?

The month with the most sunshine is August, with an average of 11.7h of sunshine.

What is the least humid month in Cottonwood?

With an average relative humidity of 47%, September is the least humid month.

What is the month with the shortest days?

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

What is the month with the lowest UV index?

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

Average temperature
Cottonwood, SD

Average temperature - Cottonwood, SD

The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (29.8°F).

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).

Average pressure
Cottonwood, SD

Average pressure - Cottonwood, SD

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

Average wind speed
Cottonwood, SD

Average wind speed - Cottonwood, SD

The windiest month (with the highest average wind speed) is April (12.1mph).
The calmest month (with the lowest average wind speed) is February (10.1mph).

Average humidity
Cottonwood, SD

Average humidity - Cottonwood, SD

The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is September (47%).

Average rainfall
Cottonwood, SD

Average rainfall - Cottonwood, SD

The wettest month (with the highest rainfall) is May (2.09").
The driest month (with the least rainfall) is January (0.39").

Average rainfall days
Cottonwood, SD

Average rainfall days - Cottonwood, SD

The month with the highest number of rainy days is May (13.5 days).
The month with the least rainy days is February (2.6 days).

Average snowfall
Cottonwood, SD

Average snowfall - Cottonwood, SD

The month with the highest snowfall is February (3.15").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days
Cottonwood, SD

Average snowfall days - Cottonwood, SD

The month with the highest number of snowfall days is February (8.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine
Cottonwood, SD

Average daylight / Average sunshine - Cottonwood, 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 August (Average sunshine: 11h and 42min).
The months with the least sunshine are January and February (Average sunshine: 5h and 12min).

Average sunshine days
Cottonwood, SD

Average sunshine days - Cottonwood, SD

The month with the most sunshine days is December (21.1 days).
The months with the least sunshine days are April and June (14.1 days).

Average visibility
Cottonwood, SD

Average visibility - Cottonwood, 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).

Cottonwood, South Dakota, USA

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