January weather forecast
Delmont, SD

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Weather in January

January, the same as December, in Delmont, South Dakota, is a freezing cold winter month, with an average temperature varying between 26.2°F (-3.2°C) and 12.2°F (-11°C).

Temperature

The coldest temperatures occur during January, when averages reach a peak of 26.2°F (-3.2°C) and a low of 12.2°F (-11°C).

Humidity

January is the most humid month, with an average relative humidity of 85%.

Rainfall

In Delmont, South Dakota, in January, during 2.5 rainfall days, 0.55" (14mm) of precipitation is typically accumulated. In Delmont, during the entire year, the rain falls for 106.8 days and collects up to 19.29" (490mm) of precipitation.

Snowfall

Months with snowfall in Delmont are January through April, October through December. In January, it is snowing for 6.6 days. Throughout January, 2.36" (60mm) of snow is accumulated. Throughout the year, there are 33.1 snowfall days, and 12.91" (328mm) of snow is accumulated.

Daylight

The average length of the day in January in Delmont is 9h and 25min.
On the first day of the month, sunrise is at 8:04 am and sunset at 5:07 pm. On the last day of January, in Delmont, sunrise is at 7:49 am and sunset at 5:42 pm CST.

Sunshine

January has the least sunshine of the year, with an average of 4.5h of sunshine.

UV index

The months with the lowest UV index in Delmont are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: A daily high UV index of 2 in January leads to these guidelines:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. To cut down UV radiation exposure by about half, sport a wide-brim hat. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
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Frequently asked questions

What is the coldest month in Delmont?

The coldest period in Delmont, South Dakota, is January, when temperatures fluctuate between an average high of 26.2°F (-3.2°C) and a low of 12.2°F (-11°C).

How cold is it in Delmont in January?

The high-temperature in Delmont, South Dakota, during January is 26.2°F (-3.2°C) and the low-temperature is 12.2°F (-11°C).

What is the most humid month in Delmont?

The most humid month is January, with an average relative humidity of 85%.

What is the average humidity in January in Delmont?

The average relative humidity in January in Delmont is 85%.

How many days does it rain in January in Delmont?

In Delmont, South Dakota, in January, it is raining for 2.5 days, with typically 0.55" (14mm) of accumulated precipitation.

How much does it snow in Delmont in January?

In January, in Delmont, it is snowing for 6.6 days. Throughout January, 2.36" (60mm) of snow is accumulated.

What is the average length of the day in January in Delmont?

The average day length in January in Delmont, South Dakota, is 9h and 25min.

What time are sunrise and sunset in January in Delmont?

On the first day of January in Delmont, South Dakota, sunrise is at 8:04 am and sunset at 5:07 pm. On the last day of the month, sunrise is at 7:49 am and sunset at 5:42 pm CST.

What is the month with the least sunshine in Delmont?

The month with the least sunshine in Delmont, South Dakota, is January, with an average of 4.5h of sunshine.

How long on average sun shines in January in Delmont?

In Delmont, South Dakota, the average sunshine duration in January is 4.5h.

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

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

What is the UV index reading in January in Delmont?

In January, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a low health threat from unsafe 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
Delmont, SD

Average temperature in January - Delmont, SD
  • Average high temperature in January: 26.2°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (26.2°F).

  • Average low temperature in January: 12.2°F

The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (12.2°F).

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Average pressure in January
Delmont, SD

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

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

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Average wind speed in January
Delmont, SD

Average wind speed in January - Delmont, SD
  • Average wind speed in January: 10.6mph

The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is July (8.5mph).

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Average humidity in January
Delmont, SD

Average humidity in January - Delmont, SD
  • Average humidity in January: 85%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (63%).

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Average rainfall in January
Delmont, SD

Average rainfall in January - Delmont, SD
  • Average rainfall in January: 0.55"

The wettest month (with the highest rainfall) is May (3.31").
The driest month (with the least rainfall) is February (0.51").

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Average rainfall days in January
Delmont, SD

Average rainfall days in January - Delmont, SD
  • Average rainfall days in January: 2.5 days

The month with the highest number of rainy days is June (15.8 days).
The month with the least rainy days is January (2.5 days).

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Average snowfall in January
Delmont, SD

Average snowfall in January - Delmont, SD
  • Average snowfall in January: 2.36"

The month with the highest snowfall is December (2.56").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in January
Delmont, SD

Average snowfall days in January - Delmont, SD
  • Average snowfall days in January: 6.6 days

The month with the highest number of snowfall days is December (7.5 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
Delmont, SD

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

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in January: 4h and 3min

The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).

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Average sunshine days in January
Delmont, SD

Average sunshine days in January - Delmont, SD
  • Average sunshine days in January: 21.6 days

The month with the most sunshine days is November (22.8 days).
The month with the least sunshine days is June (11.8 days).

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Average UV index in January
Delmont, SD

Average UV index in January - Delmont, SD
  • Average UV index in January: 2

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in January
Delmont, SD

Average cloud cover in January - Delmont, SD
  • Average cloud cover in January: 51

The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 23).

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Average visibility in January
Delmont, SD

Average visibility in January - Delmont, SD
  • Average visibility in January: 6mi

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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Delmont, South Dakota, USA

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