January weather forecast
Amherst, SD

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Weather in January

January, the same as December, in Amherst, South Dakota, is a freezing cold winter month, with temperature in the range of an average high of 19°F (-7.2°C) and an average low of 5.4°F (-14.8°C).

Temperature

The coldest period tends to be January, when average temperatures fluctuate between a high of 19°F (-7.2°C) and a low of 5.4°F (-14.8°C).

Humidity

With an average relative humidity of 90%, January is the most humid month in Amherst.

Rainfall

January is the month with the least rainfall in Amherst, South Dakota. Rain falls for 3.1 days and accumulates 0.63" (16mm) of precipitation.

Snowfall

Months with snowfall in Amherst are January through May, October through December. In Amherst, in January, snow falls for 15.3 days, with typically accumulated 4.49" (114mm) of snow. Throughout the year, in Amherst, there are 68.5 snowfall days, and 22.83" (580mm) of snow is accumulated.

Daylight

In January, the average length of the day is 9h and 10min.
On the first day of January in Amherst, sunrise is at 8:12 am and sunset at 4:57 pm. On the last day of the month, sunrise is at 7:54 am and sunset at 5:35 pm CST.

Sunshine

With an average of 3.7h of sunshine, January has the least sunshine of the year in Amherst, South Dakota.

UV index

The months with the lowest UV index are January and November, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: The UV index of 1 during January leads to these advisories:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. The solar radiation around mid-day is intense; avoid the Sun and stay safe. To cut down UV radiation exposure by about half, sport a wide-brim hat. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
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Frequently asked questions

What is the coldest month in Amherst?

January, with its average high-temperature of 19°F (-7.2°C) and an average low-temperature of 5.4°F (-14.8°C), holds the record as the coldest month in Amherst, South Dakota.

How cold is January in Amherst?

The average high-temperature and low-temperature during January are 19°F (-7.2°C) and 5.4°F (-14.8°C) respectively.

What is the most humid month in Amherst?

The most humid month in Amherst is January, with an average relative humidity of 90%.

What is the average humidity in January in Amherst?

The average relative humidity in January in Amherst is 90%.

What is the driest month in Amherst?

The month with the least rainfall is January, when the rain falls for 3.1 days and typically collects 0.63" (16mm) of precipitation.

How much does it rain in Amherst in January?

In Amherst, during January, the rain falls for 3.1 days and regularly aggregates up to 0.63" (16mm) of precipitation.

How much does it snow in Amherst in January?

In Amherst, South Dakota, during January, snow falls for 15.3 days and regularly aggregates up to 4.49" (114mm) of snow.

How many hours of daylight does Amherst have in January?

The average day length in January in Amherst, South Dakota, is 9h and 10min.

When is the sunrise / sunset in January in Amherst?

On the first day of January in Amherst, sunrise is at 8:12 am and sunset at 4:57 pm. On the last day of the month, sunrise is at 7:54 am and sunset at 5:35 pm CST.

What is the month with the least sunshine in Amherst?

The month with the least sunshine in Amherst is January, with an average of 3.7h of sunshine.

How long on average sun shines in January in Amherst?

In Amherst, South Dakota, the average sunshine duration in January is 3.7h.

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

January and November, with an average maximum UV index of 1, are months with the lowest UV index in Amherst, South Dakota.

What is the UV index reading in January in Amherst?

In January, the average daily maximum UV index is 1. A UV Index of 2, and less, symbolizes a low health risk from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Amherst, SD

Average temperature in January - Amherst, SD
  • Average high temperature in January: 19°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (19°F).

  • Average low temperature in January: 5.4°F

The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (5.4°F).

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Average pressure in January
Amherst, SD

Average pressure in January - Amherst, SD
  • Average pressure in January: 30.16"Hg

The month with the highest atmospheric pressure is February (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

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Average wind speed in January
Amherst, SD

Average wind speed in January - Amherst, SD
  • Average wind speed in January: 10.2mph

The windiest month (with the highest average wind speed) is October (10.8mph).
The calmest month (with the lowest average wind speed) is July (8.1mph).

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Average humidity in January
Amherst, SD

Average humidity in January - Amherst, SD
  • Average humidity in January: 90%

The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are August and September (62%).

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Average rainfall in January
Amherst, SD

Average rainfall in January - Amherst, SD
  • Average rainfall in January: 0.63"

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

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Average rainfall days in January
Amherst, SD

Average rainfall days in January - Amherst, SD
  • Average rainfall days in January: 3.1 days

The month with the highest number of rainy days is June (16.8 days).
The month with the least rainy days is February (2.4 days).

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Average snowfall in January
Amherst, SD

Average snowfall in January - Amherst, SD
  • Average snowfall in January: 4.49"

The month with the highest snowfall is December (4.61").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in January
Amherst, SD

Average snowfall days in January - Amherst, SD
  • Average snowfall days in January: 15.3 days

The month with the highest number of snowfall days is January (15.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in January /
Average sunshine in January
Amherst, SD

Average daylight in January / Average sunshine in January - Amherst, SD
  • Average daylight in January: 9h and 1min

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).

  • Average sunshine in January: 3h and 4min

The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

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Average sunshine days in January
Amherst, SD

Average sunshine days in January - Amherst, SD
  • Average sunshine days in January: 14 days

The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is June (10.3 days).

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Average UV index in January
Amherst, SD

Average UV index in January - Amherst, SD
  • Average UV index in January: 1

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and November (UV index 1).

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Average cloud cover in January
Amherst, SD

Average cloud cover in January - Amherst, SD
  • Average cloud cover in January: 60

The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 23).

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Average visibility in January
Amherst, SD

Average visibility in January - Amherst, SD
  • Average visibility in January: 5mi

The months with the highest visibility are April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February and March (5mi).

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Amherst, South Dakota, USA

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