Climate and monthly weather forecast
Salem, SD

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Weather in January

January, like December, is another subzero cold winter month in Salem, South Dakota, with an average temperature fluctuating between 9.3°F (-12.6°C) and 22.8°F (-5.1°C). The month of January, characterized by an average high of 22.8°F (-5.1°C) and a low of 9.3°F (-12.6°C), is recognized as the coldest. Weather in January »

Weather in February

February, the last month of the winter in Salem, is also a subzero cold month, with an average temperature fluctuating between 26.6°F (-3°C) and 13.1°F (-10.5°C). Salem in February witnesses an average high-temperature of a still subzero cold 26.6°F (-3°C), indicating a slight variation from January's 22.8°F (-5.1°C). Weather in February »

Weather in March

March, the first month of the spring in Salem, is a frosty month, with temperature in the range of an average low of 27.7°F (-2.4°C) and an average high of 42.8°F (6°C). A notable increase in the average high-temperature is observed during March, soaring from a subzero cold 26.6°F (-3°C) in February to a chilly 42.8°F (6°C). Weather in March »

Weather in April

April is a moderate spring month in Salem, South Dakota, with temperature in the range of an average high of 55.4°F (13°C) and an average low of 38.5°F (3.6°C). The shift into April is marked by a rise in the average high-temperature, moving from March's frosty 42.8°F (6°C) to a mild 55.4°F (13°C). Weather in April »

Weather in May

May, the last month of the spring in Salem, is a refreshing month, with an average temperature fluctuating between 67.3°F (19.6°C) and 50°F (10°C). In Salem, stepping into May brings a temperature increase, moving up from April's refreshing 55.4°F (13°C) to an enjoyable 67.3°F (19.6°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Salem, South Dakota, with an average temperature ranging between max 77.5°F (25.3°C) and min 60.1°F (15.6°C). The beginning of June marks a shift in the average high-temperature, moving from May's enjoyable 67.3°F (19.6°C) to a moderately hot 77.5°F (25.3°C). Weather in June »

Weather in July

July, like June, in Salem, South Dakota, is a moderately hot summer month, with temperature in the range of an average low of 63.1°F (17.3°C) and an average high of 82.6°F (28.1°C). Salem's warmest weather arrives in July, when temperatures average a high of 82.6°F (28.1°C) and a low of 63.1°F (17.3°C). July's mean heat index is evaluated at a hot 87.8°F (31°C). Weather in July »

Weather in August

August, the last month of the summer in Salem, is also a moderately hot month, with temperature in the range of an average high of 81.1°F (27.3°C) and an average low of 59.5°F (15.3°C). Salem measures an average high-temperature of a still warm 81.1°F (27.3°C) in August, nearly consistent with the preceding month. Weather in August »

Weather in September

September, the first month of the autumn in Salem, is also a moderately hot month, with temperature in the range of an average low of 53.4°F (11.9°C) and an average high of 74.3°F (23.5°C). Salem's weather subtly changes with the onset of September, barely falling from a warm 81.1°F (27.3°C) in August to a still moderately hot 74.3°F (23.5°C). Weather in September »

Weather in October

October, the same as September, in Salem, South Dakota, is a moderate autumn month, with temperature in the range of an average high of 57.2°F (14°C) and an average low of 41.2°F (5.1°C). Salem's October weather is marked by a distinct drop in high-temperatures, declining from a warm 74.3°F (23.5°C) in September to a refreshing 57.2°F (14°C). Weather in October »

Weather in November

The last month of the autumn, November, is another chilly month in Salem, South Dakota, with an average temperature fluctuating between 43°F (6.1°C) and 29.1°F (-1.6°C). The average high-temperature drops in November, from October's refreshing 57.2°F (14°C) to a chilly 43°F (6.1°C). Weather in November »

Weather in December

The first month of the winter, December, is still a freezing cold month in Salem, South Dakota, with an average temperature fluctuating between 27.5°F (-2.5°C) and 15.4°F (-9.2°C). As December arrives, Salem's weather displays a notable decrease in high-temperatures, falling from November's frosty 43°F (6.1°C) to a freezing cold 27.5°F (-2.5°C). Weather in December »
Updated: Aug 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the coldest months?

Salem experiences its lowest temperatures in January, with an average peak of 22.8°F (-5.1°C) and a low of 9.3°F (-12.6°C).

What is the most humid month?

The most humid month is January, with an average relative humidity of 88%.

How many days does it rain?

Throughout the year, there are 118.3 rainfall days, and 22.76" (578mm) of precipitation is accumulated.

When does it snow in Salem?

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

How much does it snow?

Throughout the year, there are 45.4 snowfall days, and 19.33" (491mm) of snow is accumulated.

What is the month with the least sunshine in Salem?

January has the least sunshine of the year, with an average of 4h of sunshine.

When is the lowest UV index?

The months with the lowest UV index are January and December, with an average maximum UV index of 1.

What is the driest month?

February is the month with the least rainfall. Rain falls for 2.6 days and accumulates 0.63" (16mm) of precipitation.

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 rainiest month?

The month with the most rainfall is June, when the rain falls for 18.3 days and typically aggregates up to 3.62" (92mm) of precipitation.

When it does not snow?

June through September are months without snowfall.

When are the longest days in Salem?

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

What are the months with 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?

Salem witnesses the warmest weather in July, with temperatures averaging a high of 82.6°F (28.1°C) and a low of 63.1°F (17.3°C).

What month has the most sunshine?

With an average of 10.7h of sunshine, July has the most sunshine of the year.

What is the least humid month?

With an average relative humidity of 67%, October is the least humid month.

When does it snow the most in Salem?

December is the month with the most snowfall. Snow falls for 10.1 days and accumulates 4.21" (107mm) of snow.

What is the month with the shortest days?

With an average of 9h and 0min of daylight, December has the shortest days of the year in Salem, South Dakota.

Average temperature
Salem, SD

Average temperature - Salem, SD

The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (22.8°F).

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (9.3°F).

Average pressure
Salem, SD

Average pressure - Salem, 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).

Average wind speed
Salem, SD

Average wind speed - Salem, SD

The windiest month (with the highest average wind speed) is April (11.4mph).
The calmest month (with the lowest average wind speed) is July (8.1mph).

Average humidity
Salem, SD

Average humidity - Salem, SD

The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is October (67%).

Average rainfall
Salem, SD

Average rainfall - Salem, SD

The wettest month (with the highest rainfall) is June (3.62").
The driest month (with the least rainfall) is February (0.63").

Average rainfall days
Salem, SD

Average rainfall days - Salem, SD

The month with the highest number of rainy days is June (18.3 days).
The month with the least rainy days is February (2.6 days).

Average snowfall
Salem, SD

Average snowfall - Salem, SD

The month with the highest snowfall is December (4.21").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days
Salem, SD

Average snowfall days - Salem, SD

The month with the highest number of snowfall days is January (10.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine
Salem, SD

Average daylight / Average sunshine - Salem, 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 0min).

Average sunshine days
Salem, SD

Average sunshine days - Salem, SD

The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (9.2 days).

Average visibility
Salem, SD

Average visibility - Salem, 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).

Salem, South Dakota, USA

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