Climate and monthly weather forecast
Isabel, SD

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Weather in January

January, like December, is another subzero cold winter month in Isabel, South Dakota, with an average temperature ranging between min 13.6°F (-10.2°C) and max 27°F (-2.8°C). Isabel's temperature records reveal January as the coldest month, marked by average highs of 27°F (-2.8°C) and lows of 13.6°F (-10.2°C). Weather in January »

Weather in February

The last month of the winter, February, is another freezing cold month in Isabel, South Dakota, with an average temperature fluctuating between 29.1°F (-1.6°C) and 15.8°F (-9°C). The commencement of February introduces an average high-temperature of a still freezing cold 29.1°F (-1.6°C), closely mirroring the preceding month. Weather in February »

Weather in March

March, the first month of the spring in Isabel, is a frosty month, with an average temperature ranging between max 43.2°F (6.2°C) and min 27.9°F (-2.3°C). March's arrival coincides with a rise in the average high-temperature, moving from February's freezing cold 29.1°F (-1.6°C) to a chilly 43.2°F (6.2°C). Weather in March »

Weather in April

April in Isabel, South Dakota, is a cool spring month, with an average temperature fluctuating between 37.2°F (2.9°C) and 54.3°F (12.4°C). Isabel's April weather shows an increase in high-temperatures, moving from March's chilly 43.2°F (6.2°C) to a cool 54.3°F (12.4°C). Weather in April »

Weather in May

May, the last month of the spring in Isabel, is a comfortable month, with an average temperature fluctuating between 66°F (18.9°C) and 47.8°F (8.8°C). The shift from April to May brings an increase in the average high-temperature, moving from a cool 54.3°F (12.4°C) to a refreshing 66°F (18.9°C). Weather in May »

Weather in June

June, the first month of the summer in Isabel, is a moderately hot month, with an average temperature fluctuating between 78.6°F (25.9°C) and 58.3°F (14.6°C). June brings a temperature increase, with average high-temperatures moving from May's enjoyable 66°F (18.9°C) to a moderately hot 78.6°F (25.9°C). Weather in June »

Weather in July

July in Isabel, South Dakota, is a tropical summer month, with an average temperature ranging between min 66°F (18.9°C) and max 87.3°F (30.7°C). Isabel, South Dakota, witnesses the warmest weather in July, with temperatures averaging a high of 87.3°F (30.7°C) and a low of 66°F (18.9°C). The heat index for July is estimated at a hot 89.6°F (32°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Isabel, South Dakota, with an average temperature varying between 84.7°F (29.3°C) and 64°F (17.8°C). The average high-temperature during August is a moderately hot 84.7°F (29.3°C), almost matching the conditions of the preceding month. Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Isabel, South Dakota, with temperature in the range of an average high of 75.4°F (24.1°C) and an average low of 56.3°F (13.5°C). The beginning of September marks a decrease in the average high-temperature, transitioning from 84.7°F (29.3°C) in August to a still moderately hot 75.4°F (24.1°C). Weather in September »

Weather in October

October, like September, is another refreshing autumn month in Isabel, South Dakota, with an average temperature ranging between min 41.2°F (5.1°C) and max 56.7°F (13.7°C). As Isabel steps into October, a marked temperature drop is observed, with the average high-temperature reducing from September's moderately hot 75.4°F (24.1°C) to a moderate 56.7°F (13.7°C). Weather in October »

Weather in November

November, the last month of the autumn in Isabel, is another chilly month, with temperature in the range of an average low of 29.1°F (-1.6°C) and an average high of 43.3°F (6.3°C). The shift to November brings a decrease in the average high-temperature, falling from a refreshing 56.7°F (13.7°C) in October to a frosty 43.3°F (6.3°C). Weather in November »

Weather in December

December, the first month of the winter in Isabel, is still a freezing cold month, with an average temperature ranging between max 28.2°F (-2.1°C) and min 16.2°F (-8.8°C). December's arrival sees a clear drop in the average high-temperature, decreasing from November's chilly 43.3°F (6.3°C) to a subzero cold 28.2°F (-2.1°C). Weather in December »
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Frequently asked questions

What month is the coldest in Isabel?

Isabel, South Dakota, notes the coldest temperatures in January, with a average high of 27°F (-2.8°C) and a low of 13.6°F (-10.2°C).

What is the most humid month in Isabel?

With an average relative humidity of 83%, January is the most humid month.

What is the driest month in Isabel?

The month with the least rainfall is January, when the rain falls for 3.3 days and typically collects 0.51" (13mm) of precipitation.

How much does it rain in Isabel?

In Isabel, South Dakota, during the entire year, the rain falls for 99.7 days and collects up to 16.06" (408mm) of precipitation.

When does it snow in Isabel?

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

How many days does it snow in Isabel?

In Isabel, South Dakota, during the entire year, snow falls for 58.3 days and aggregates up to 22.95" (583mm) of snow.

What is the month with the least sunshine in Isabel?

The month with the least sunshine in Isabel, South Dakota, is January, with an average of 4.8h of sunshine.

What are the months with the lowest UV index in Isabel?

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Isabel, South Dakota.

What is the snowiest month in Isabel?

February is the month with the most snowfall in Isabel, South Dakota. Snow falls for 12.2 days and accumulates 5.12" (130mm) of snow.

When is Daylight Saving Time (DST) in Isabel?

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 in Isabel?

May is the month with the most rainfall in Isabel. Rain falls for 14.7 days and accumulates 2.83" (72mm) of precipitation.

When it does not snow in Isabel?

June through September are months without snowfall in Isabel, South Dakota.

When are the longest days in Isabel?

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

What are the warmest months in Isabel?

July, known for its average high temperature of 87.3°F (30.7°C) and an average low temperature of 66°F (18.9°C), is the warmest month in Isabel, South Dakota.

What month has the most sunshine in Isabel?

July has the most sunshine of the year in Isabel, with an average of 11.5h of sunshine.

When is the highest UV index in Isabel?

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

What are the least humid months in Isabel?

The months with the lowest humidity in Isabel, South Dakota, are August and September, with an average relative humidity of 49%.

What is the month with the shortest days in Isabel?

With an average of 8h and 48min of daylight, December has the shortest days of the year in Isabel.

Average pressure
Isabel, SD

Average pressure - Isabel, SD

The months with the highest atmospheric pressure are January and February (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

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Average wind speed
Isabel, SD

Average wind speed - Isabel, SD

The windiest month (with the highest average wind speed) is April (12.2mph).
The calmest months (with the lowest average wind speed) are February and August (10.4mph).

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Average humidity
Isabel, SD

Average humidity - Isabel, SD

The month with the highest relative humidity is January (83%).
The months with the lowest relative humidity are August and September (49%).

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Average rainfall
Isabel, SD

Average rainfall - Isabel, SD

The wettest month (with the highest rainfall) is May (2.83").
The driest month (with the least rainfall) is January (0.51").

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Average rainfall days
Isabel, SD

Average rainfall days - Isabel, SD

The month with the highest number of rainy days is May (14.7 days).
The months with the least rainy days are January and February (3.3 days).

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Average snowfall
Isabel, SD

Average snowfall - Isabel, SD

The month with the highest snowfall is February (5.12").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Isabel, SD

Average snowfall days - Isabel, SD

The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Isabel, SD

Average daylight / Average sunshine - Isabel, 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 30min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).

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Average sunshine days
Isabel, SD

Average sunshine days - Isabel, SD

The month with the most sunshine days is September (20.4 days).
The month with the least sunshine days is April (12.4 days).

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Average visibility
Isabel, SD

Average visibility - Isabel, 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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Isabel, South Dakota, USA

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