January weather forecast
Hetland, SD

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Weather in January

January, like December, is a freezing cold winter month in Hetland, South Dakota, with an average temperature fluctuating between 20.7°F (-6.3°C) and 7°F (-13.9°C).

Temperature

In Hetland, the lowest average temperatures are observed in January, with a high of 20.7°F (-6.3°C) and a low of 7°F (-13.9°C).

Humidity

January is the most humid month, with an average relative humidity of 90%.

Rainfall

In Hetland, in January, during 3.2 rainfall days, 0.71" (18mm) of precipitation is typically accumulated. Throughout the year, there are 125.5 rainfall days, and 21.65" (550mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In Hetland, South Dakota, during January, snow falls for 14.4 days and regularly aggregates up to 4.13" (105mm) of snow. In Hetland, during the entire year, snow falls for 61.5 days and aggregates up to 21.38" (543mm) of snow.

Daylight

In Hetland, the average length of the day in January is 9h and 19min.
On the first day of the month, sunrise is at 8:04 am and sunset at 4:59 pm. On the last day of January, sunrise is at 7:48 am and sunset at 5:36 pm CST.

Sunshine

With an average of 3.8h of sunshine, January has the least sunshine of the year.

UV index

With an average maximum UV index of 1, January is the month with the lowest UV index. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for the average person.
Note: A maximum high UV index of 1 in January translates into the following recommendations:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.

Frequently asked questions

What part of the year is the coldest?

January is the coldest month, with the temperature often reaching an average high of 20.7°F (-6.3°C) and an average low of 7°F (-13.9°C).

How cold is it in January?

January temperatures vary between a high-temperature of 20.7°F (-6.3°C) and a low-temperature of 7°F (-13.9°C).

What is the most humid month?

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

What is the average humidity in January?

In Hetland, the average relative humidity in January is 90%.

How much does it rain in January?

In January, the rain falls for 3.2 days. Throughout January, 0.71" (18mm) of precipitation is accumulated.

How many days does it snow in January?

In Hetland, during January, snow falls for 14.4 days and regularly aggregates up to 4.13" (105mm) of snow.

What is the average length of the day in January?

In Hetland, the average day length in January is 9h and 19min.

When is the sunrise / sunset in January?

On the first day of January, sunrise is at 8:04 am and sunset at 4:59 pm. On the last day of the month, sunrise is at 7:48 am and sunset at 5:36 pm CST.

What is the month with the least sunshine?

January has the least sunshine of the year, with an average of 3.8h of sunshine.

How long on average sun shines in January?

The average sunshine duration in January is 3.8h.

What is the month with the lowest UV index?

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

What is the UV index intensity in January?

In Hetland, the average daily maximum UV index in January is 1. A UV Index reading of 2, and below, represents a low health threat 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
Hetland, SD

Average temperature in January - Hetland, SD
  • Average high temperature in January: 20.7°F

The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (20.7°F).

  • Average low temperature in January: 7°F

The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (7°F).

Average pressure in January
Hetland, SD

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

The months with the highest atmospheric pressure are January and February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).

Average wind speed in January
Hetland, SD

Average wind speed in January - Hetland, SD
  • Average wind speed in January: 10.8mph

The windiest month (with the highest average wind speed) is April (11.5mph).
The calmest month (with the lowest average wind speed) is July (8.4mph).

Average humidity in January
Hetland, SD

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

The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is October (68%).

Average rainfall in January
Hetland, SD

Average rainfall in January - Hetland, SD
  • Average rainfall in January: 0.71"

The wettest month (with the highest rainfall) is June (3.46").
The driest month (with the least rainfall) is November (0.67").

Average rainfall days in January
Hetland, SD

Average rainfall days in January - Hetland, SD
  • Average rainfall days in January: 3.2 days

The month with the highest number of rainy days is June (19.8 days).
The month with the least rainy days is January (3.2 days).

Average snowfall in January
Hetland, SD

Average snowfall in January - Hetland, SD
  • Average snowfall in January: 4.13"

The month with the highest snowfall is February (4.69").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Hetland, SD

Average snowfall days in January - Hetland, SD
  • Average snowfall days in January: 14.4 days

The month with the highest number of snowfall days is January (14.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Hetland, SD
  • Average daylight in January: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in January: 3h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

Average sunshine days in January
Hetland, SD

Average sunshine days in January - Hetland, SD
  • Average sunshine days in January: 15.8 days

The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is June (8.3 days).

Average UV index in January
Hetland, SD

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

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

Average cloud cover in January
Hetland, SD

Average cloud cover in January - Hetland, SD
  • Average cloud cover in January: 59

The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are July and August (Cloud cover 28).

Average visibility in January
Hetland, SD

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

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).

Hetland, South Dakota, USA

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