Belle Fourche
South Dakota, USA
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Belle Fourche, SD

January, the same as December, in Belle Fourche, South Dakota, is a freezing cold winter month, with average temperature ranging between min 17.6°F (-8°C) and max 30.7°F (-0.7°C). In Belle Fourche, the average high-temperature in January is almost the same as in December - a still subzero cold 30.7°F (-0.7°C). Weather in January »

The last month of the winter, February, is also a subzero cold month in Belle Fourche, South Dakota, with temperature in the range of an average low of 17.1°F (-8.3°C) and an average high of 31.3°F (-0.4°C). In Belle Fourche, the average high-temperature is practically the same as in January - a still freezing cold 31.3°F (-0.4°C). Weather in February »

The first month of the spring, March, is a frosty month in Belle Fourche, South Dakota, with average temperature varying between 44.2°F (6.8°C) and 27.9°F (-2.3°C). In March, the average high-temperature increases, from a subzero cold 31.3°F (-0.4°C) in February, to a frosty 44.2°F (6.8°C). Weather in March »

April is a cool spring month in Belle Fourche, South Dakota, with temperature in the range of an average low of 34.9°F (1.6°C) and an average high of 52.9°F (11.6°C). In April, the average high-temperature marginally rises, from a chilly 44.2°F (6.8°C) in March, to a cool 52.9°F (11.6°C). Weather in April »

The last month of the spring, May, is an enjoyable month in Belle Fourche, South Dakota, with average temperature varying between 63.5°F (17.5°C) and 44.6°F (7°C). In May, the average high-temperature increases, from a cool 52.9°F (11.6°C) in April, to an enjoyable 63.5°F (17.5°C). Weather in May »

June, the first month of the summer, in Belle Fourche, is a warm month, with average temperature varying between 76.3°F (24.6°C) and 55.2°F (12.9°C). In Belle Fourche, the average high-temperature increases, from an enjoyable 63.5°F (17.5°C) in May, to a moderately hot 76.3°F (24.6°C). Weather in June »

July, like June, in Belle Fourche, South Dakota, is a moderately hot summer month, with temperature in the range of an average low of 63°F (17.2°C) and an average high of 85.8°F (29.9°C). With an average high-temperature of 85.8°F (29.9°C) and an average low-temperature of 63°F (17.2°C), July is the warmest month. The average heat index is evaluated at a tropical 87.4°F (30.8°C). Weather in July »

The last month of the summer, August, is also a moderately hot month in Belle Fourche, South Dakota, with temperature in the range of an average high of 83.1°F (28.4°C) and an average low of 61.5°F (16.4°C). In August, the average high-temperature is almost the same as in July - a still moderately hot 83.1°F (28.4°C). Weather in August »

September, the first month of the autumn, in Belle Fourche, is also a moderately hot month, with average temperature ranging between min 53.6°F (12°C) and max 73.9°F (23.3°C). In Belle Fourche, South Dakota, the average high-temperature decreases, from a moderately hot 83.1°F (28.4°C) in August, to a still warm 73.9°F (23.3°C). Weather in September »

October, the same as September, in Belle Fourche, South Dakota, is another mild autumn month, with temperature in the range of an average high of 55.9°F (13.3°C) and an average low of 39.4°F (4.1°C). In Belle Fourche, the average high-temperature in October declines considerably, from a moderately hot 73.9°F (23.3°C) in September, to a mild 55.9°F (13.3°C). Weather in October »

The last month of the autumn, November, is also a frosty month in Belle Fourche, South Dakota, with temperature in the range of an average low of 28.9°F (-1.7°C) and an average high of 43.9°F (6.6°C). In November, the average high-temperature drops, from a moderate 55.9°F (13.3°C) in October, to a chilly 43.9°F (6.6°C). Weather in November »

The first month of the winter, December, is also a subzero cold month in Belle Fourche, South Dakota, with temperature in the range of an average high of 30.4°F (-0.9°C) and an average low of 18.1°F (-7.7°C). The coldest month is December, with an average high-temperature of 30.4°F (-0.9°C) and an average low-temperature of 18.1°F (-7.7°C). Weather in December »

What is the most humid month in Belle Fourche?

The most humid month is January, with an average relative humidity of 80%.

How many days does it rain in Belle Fourche?

Throughout the year, there are 100 rainfall days, and 12.83" (326mm) of precipitation is accumulated.

What is the driest month in Belle Fourche?

January is the month with the least rainfall in Belle Fourche. Rain falls for 2.8 days and accumulates 0.43" (11mm) of precipitation.

When does it snow in Belle Fourche?

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

How many days does it snow in Belle Fourche?

Throughout the year, in Belle Fourche, there are 52.1 snowfall days, and 23.54" (598mm) of snow is accumulated.

What is the month with the lowest UV index in Belle Fourche?

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

What is the month with the least sunshine in Belle Fourche?

The month with the least sunshine in Belle Fourche, South Dakota, is February, with an average of 5.5h of sunshine.

When does it snow the most in Belle Fourche?

The month with the most snowfall in Belle Fourche is April when snow falls for 5.1 days and typically aggregates up to 4.88" (124mm) of snow.

What is the wettest month in Belle Fourche?

May is the month with the most rainfall in Belle Fourche. Rain falls for 14.3 days and accumulates 2.05" (52mm) of precipitation.

When it does not snow in Belle Fourche?

In Belle Fourche, South Dakota, snow does not fall in June through August.

When are the longest days in Belle Fourche?

The month with the longest days in Belle Fourche, South Dakota, is June, with an average of 15.5h of daylight.

What is the month with the highest UV index in Belle Fourche?

June through August, with an average maximum UV index of 6, are months with the highest UV index in Belle Fourche.

What is the warmest month in Belle Fourche?

The warmest month in Belle Fourche, South Dakota, is July, with an average high-temperature of 85.8°F (29.9°C) and an average low-temperature of 63°F (17.2°C).

What is the least humid month in Belle Fourche?

The least humid month is August, with an average relative humidity of 47%.

What month has the most sunshine in Belle Fourche?

August has the most sunshine of the year in Belle Fourche, South Dakota, with an average of 11.9h of sunshine.

What is the coldest month in Belle Fourche?

With an average high-temperature of 30.4°F (-0.9°C) and an average low-temperature of 18.1°F (-7.7°C), December is the coldest month in Belle Fourche, South Dakota.

What is the month with the shortest days in Belle Fourche?

With an average of 8.9h of daylight, December has the shortest days of the year in Belle Fourche, South Dakota.
Average temperature - Belle Fourche, SD
Average humidity - Belle Fourche, SD
Average rainfall - Belle Fourche, SD
Average rainfall days - Belle Fourche, SD

The month with the highest number of rainy days is May (14.3 days).
The month with the lowest number of rainy days is January (2.8 days).

Average snowfall - Belle Fourche, SD
Average snowfall days - Belle Fourche, SD

The month with the highest number of snowfall days is February (10.3 days).
Months with the lowest number of snowfall days are June, July and August (0 days).

Average daylight / Average sunshine - Belle Fourche, SD

The month with the longest days is June (Average daylight: 15.5h).
The month with shortest days is December (Average daylight: 8.9h).

The month with most sunshine is August (Average sunshine: 11.9h).
The month with least sunshine is February (Average sunshine: 5.5h).

Average UV index - Belle Fourche, SD