January weather forecast
Madison, SD

Weather in January

January, the same as December, in Madison, South Dakota, is a freezing cold winter month, with an average temperature fluctuating between 8.1°F (-13.3°C) and 22.3°F (-5.4°C).

Temperature

The coldest month is January, with an average high-temperature of 22.3°F (-5.4°C) and an average low-temperature of 8.1°F (-13.3°C).

Humidity

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

Rainfall

In Madison, it is raining for 1.6 days, with typically 0.67" (17mm) of accumulated precipitation. Throughout the year, in Madison, South Dakota, there are 111.2 rainfall days, and 21.14" (537mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In Madison, snow falls for 11.3 days, with typically accumulated 3.46" (88mm) of snow. Throughout the year, there are 49.4 snowfall days, and 20.04" (509mm) of snow is accumulated.

Daylight

In January, the average length of the day in Madison is 9h and 20min.
On the first day of January in Madison, sunrise is at 8:03 am and sunset at 5:01 pm. On the last day of the month, sunrise is at 7:46 am and sunset at 5:37 pm CST.

Sunshine

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

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index in Madison. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: In January, the average maximum UV index of 1 translate into the following recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the coldest month in Madison?

The coldest month in Madison is January, with an average high-temperature of 22.3°F (-5.4°C) and an average low-temperature of 8.1°F (-13.3°C).

What is the most humid month in Madison?

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

What is the average humidity in January in Madison?

In January, the average relative humidity in Madison, South Dakota, is 90%.

How many days does it rain in January in Madison?

In Madison, in January, during 1.6 rainfall days, 0.67" (17mm) of precipitation is typically accumulated.

How much does it snow in Madison in January?

In Madison, in January, during 11.3 snowfall days, 3.46" (88mm) of snow is typically accumulated.

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

In January, the average day length is 9h and 20min.

When are sunrise and sunset in January in Madison?

In January, on the first day of the month, sunrise is at 8:03 am and sunset at 5:01 pm. On the last day of the month, in Madison, sunrise is at 7:46 am and sunset at 5:37 pm CST.

What is the month with the least sunshine in Madison?

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

How many hours of sunshine does Madison have in January?

In January, the average sunshine duration is 3.8h.

What is the month with the lowest UV index in Madison?

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

What is the UV index reading in January in Madison?

The average daily maximum UV index in January is 1. A UV Index of 2, and less, symbolizes a minimal hazard to health from exposure to the Sun's UV radiation.

Average temperature in January
Madison, SD

Average temperature in January - Madison, SD
  • Average high temperature in January: 22.3°F

The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (22.3°F).

  • Average low temperature in January: 8.1°F

The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (8.1°F).

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Average pressure in January
Madison, SD

Average pressure in January - Madison, SD
  • Average pressure in January: 30.16"

The months with the highest atmospheric pressure are January and February (30.16").
The month with the lowest atmospheric pressure is June (29.85").

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Average wind speed in January
Madison, SD

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

The windiest month (with the highest average wind speed) is April (11.6mph).
The calmest months (with the lowest average wind speed) are July and August (8.6mph).

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Average humidity in January
Madison, SD

Average humidity in January - Madison, 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 (67%).

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Average rainfall in January
Madison, SD

Average rainfall in January - Madison, SD
  • Average rainfall in January: 0.67"

The wettest month (with the highest rainfall) is June (3.23").
The driest month (with the least rainfall) is November (0.59").

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Average rainfall days in January
Madison, SD

Average rainfall days in January - Madison, SD
  • Average rainfall days in January: 1.6 days

The month with the highest number of rainy days is June (18.7 days).
The month with the least rainy days is January (1.6 days).

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Average snowfall in January
Madison, SD

Average snowfall in January - Madison, SD
  • Average snowfall in January: 3.46"

The month with the highest snowfall is February (4.76").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in January
Madison, SD

Average snowfall days in January - Madison, SD
  • Average snowfall days in January: 11.3 days

The month with the highest number of snowfall days is January (11.3 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
Madison, SD

Average daylight in January / Average sunshine in January - Madison, SD
  • Average daylight in January: 9h and 20min

The month with the longest days is June (Average daylight: 15h and 26min).
The month with the shortest days is December (Average daylight: 8h and 58min).

  • Average sunshine in January: 3.8h

The month with the most sunshine is July (Average sunshine: 10.6h).
The month with the least sunshine is January (Average sunshine: 3.8h).

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Average sunshine days in January
Madison, SD

Average sunshine days in January - Madison, SD
  • Average sunshine days in January: 19.4 days

The month with the most sunshine days is November (22.4 days).
The month with the least sunshine days is June (9.5 days).

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Average UV index in January
Madison, SD

Average UV index in January - Madison, 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 December (UV index 1).

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Average cloud cover in January
Madison, SD

Average cloud cover in January - Madison, 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 July (Cloud cover 28).

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Average visibility in January
Madison, SD

Average visibility in January - Madison, 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).

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