January weather forecastWalker, SD

January

Weather in January

January, like December, is another subzero cold winter month in Walker, South Dakota, with temperature in the range of an average high of 23°F (-5°C) and an average low of 9°F (-12.8°C).

Temperature

January, with an average high of 23°F (-5°C) and a low of 9°F (-12.8°C), signifies the coldest month of the year.

Humidity

With an average relative humidity of 87%, January is the most humid month.

Rainfall

January is the month with the least rainfall. Rain falls for 2.3 days and accumulates 0.47" (12mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Walker, during January, snow falls for 11.8 days and regularly aggregates up to 2.87" (73mm) of snow. Throughout the year, there are 49.4 snowfall days, and 19.09" (485mm) of snow is accumulated.

Daylight

The average length of the day in January is 9h and 9min.
On the first day of the month, sunrise is at 7:25 am and sunset at 4:09 pm. On the last day of January, sunrise is at 7:07 am and sunset at 4:47 pm MST.

Sunshine

With an average of 4.1h of sunshine, January has the least sunshine of the year.

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for average individuals.
Note: The UV index of 1 during January translates into the following guidance:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. 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. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Updated: Jul 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

January, marked by an average high-temperature of 23°F (-5°C) and a low-temperature of 9°F (-12.8°C), is the coldest month.

The high-temperature, in January, in Walker, is 23°F (-5°C), while the low-temperature averages to 9°F (-12.8°C).

With an average relative humidity of 87%, January is the most humid month.

In January, the average relative humidity is 87%.

January is the month with the least rainfall. Rain falls for 2.3 days and accumulates 0.47" (12mm) of precipitation.

In Walker, in January, during 2.3 rainfall days, 0.47" (12mm) of precipitation is typically accumulated.

In January, it is snowing for 11.8 days. Throughout January, 2.87" (73mm) of snow is accumulated.

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

On the first day of January, sunrise is at 7:25 am and sunset at 4:09 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 4:47 pm MST.

January has the least sunshine of the year, with an average of 4.1h of sunshine.

The average sunshine duration in January is 4.1h.

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

In January, the average daily maximum UV index is 1. A UV Index of 2, and less, symbolizes a low health threat from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Walker, SD

  • Average high temperature in January: 23°F

The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (23°F).

  • Average low temperature in January: 9°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (9°F).

Average pressure in January
Walker, 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 (29.84"Hg).

Average wind speed in January
Walker, SD

  • Average wind speed in January: 10mph

The windiest month (with the highest average wind speed) is April (11.5mph).
The calmest month (with the lowest average wind speed) is February (9.4mph).

Average humidity in January
Walker, SD

  • Average humidity in January: 87%

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (52%).

Average rainfall in January
Walker, SD

  • Average rainfall in January: 0.47"

The wettest month (with the highest rainfall) is June (2.32").
The driest month (with the least rainfall) is January (0.47").

Average rainfall days in January
Walker, SD

  • Average rainfall days in January: 2.3 days

The month with the highest number of rainy days is June (13.8 days).
The month with the least rainy days is February (1.3 days).

Average snowfall in January
Walker, SD

  • Average snowfall in January: 2.87"

The month with the highest snowfall is February (3.98").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Walker, SD

  • Average snowfall days in January: 11.8 days

The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

  • Average daylight in January: 9h and 6min

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: 4h and 6min

The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

Average sunshine days in January
Walker, SD

  • Average sunshine days in January: 18 days

The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (13.6 days).

Average UV index in January
Walker, SD

  • Average UV index in January: 1

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

Average cloud cover in January
Walker, SD

  • Average cloud cover in January: 56

The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are July and August (Cloud cover 21).

Average visibility in January
Walker, 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).