January weather forecastAberdeen, SD

During winter, snow cover is seen all over the area in Aberdeen City, South DakotaDuring winter, snow cover is seen all over the area in Aberdeen City, South Dakota

January

Weather in January

Aberdeen, South Dakota, ushers in the New Year with a chilly outlook. A fair amount of snowfall registers, with 3.82" (97mm) falling over 13 days. Sunshine hours are scant, and the possibility of foggy mornings can reduce visibility. Notably, it is one of the coldest months of the year with temperatures dipping to lows that often necessitate layers of warm clothing. January is a month of stark beauty, perfectly suited for those who appreciate winter landscapes.

Temperature

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 6.3°F (-14.3°C).

Humidity

The most humid month is January, with an average relative humidity of 88%.

Rainfall

January is the month with the least rainfall. Rain falls for 3 days and accumulates 0.59" (15mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. The month with the most snowfall is January, when snow falls for 13 days and typically aggregates up to 3.82" (97mm) of snow.

Daylight

The average length of the day in January is 9h and 11min.
On the first day of January, sunrise is at 8:13 am and sunset at 5:01 pm. On the last day of the month, sunrise is at 7:56 am and sunset at 5:38 pm CST.

Sunshine

January has the least sunshine of the year, with an average of 3.9h of sunshine.

UV index

January, February and November, with an average maximum UV index of 1, are months 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 radiation for the average person.
Note: A maximum high UV index of 1 in January translates into the following recommendations:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Updated: Aug 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Aberdeen reaches its average lowest temperatures in January, measuring 20.7°F (-6.3°C) at the peak and 6.3°F (-14.3°C) at the lowest.

In Aberdeen, 20.7°F (-6.3°C) is the average high-temperature and 6.3°F (-14.3°C) is the average low-temperature during January.

January is the most humid month, with an average relative humidity of 88%.

The average relative humidity in January in Aberdeen is 88%.

January is the month with the least rainfall. Rain falls for 3 days and accumulates 0.59" (15mm) of precipitation.

In January, the rain falls for 3 days. Throughout January, 0.59" (15mm) of precipitation is accumulated.

January is the month with the most snowfall. Snow falls for 13 days and accumulates 3.82" (97mm) of snow.

In January, it is snowing for 13 days. Throughout January, 3.82" (97mm) of snow is accumulated.

In January, the average day length is 9h and 11min.

In January, on the first day of the month, sunrise is at 8:13 am and sunset at 5:01 pm. On the last day of the month, sunrise is at 7:56 am and sunset at 5:38 pm CST.

With an average of 3.9h of sunshine, January has the least sunshine of the year.

In January, the average sunshine duration is 3.9h.

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

The average daily maximum UV index in January is 1. A UV Index value of 2, and less, symbolizes a low health threat from unsafe exposure to Sun's UV rays.
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 sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Aberdeen, SD

  • Average high temperature in January: 20.7°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (20.7°F).

  • Average low temperature in January: 6.3°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (6.3°F).

Average pressure in January
Aberdeen, 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).

Average wind speed in January
Aberdeen, SD

  • Average wind speed in January: 9.5mph

The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (8.3mph).

Average humidity in January
Aberdeen, SD

  • Average humidity in January: 88%

The month with the highest relative humidity is January (88%).
The months with the lowest relative humidity are August and September (60%).

Average rainfall in January
Aberdeen, SD

  • Average rainfall in January: 0.59"

The wettest month (with the highest rainfall) is June (3.46").
The driest month (with the least rainfall) is January (0.59").

Average rainfall days in January
Aberdeen, SD

  • Average rainfall days in January: 3 days

The month with the highest number of rainy days is June (15 days).
The month with the least rainy days is February (2 days).

Average snowfall in January
Aberdeen, SD

  • Average snowfall in January: 3.82"

The month with the highest snowfall is January (3.82").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Aberdeen, SD

  • Average snowfall days in January: 13 days

The month with the highest number of snowfall days is January (13 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

  • Average daylight in January: 9h and 12min

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in January: 3h and 54min

The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in January
Aberdeen, SD

  • Average sunshine days in January: 17.2 days

The month with the most sunshine days is November (20.9 days).
The month with the least sunshine days is June (12.7 days).

Average UV index in January
Aberdeen, 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, February and November (UV index 1).

Average cloud cover in January
Aberdeen, SD

  • Average cloud cover in January: 57

The month with the most cloud cover is January (Cloud cover 57).
The months with the least cloud cover are July and August (Cloud cover 23).

Average visibility in January
Aberdeen, 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).