January weather - Winter 2025

Weather in January
Frequently asked questions
Average temperature in January
Average pressure in January
Average wind speed in January
Average humidity in January
Average rainfall in January
Average rainfall days in January
Average snowfall in January
Average snowfall days in January
Average daylight in January
Average sunshine in January
Average sunshine days in January
Average UV index in January
Average cloud cover in January
Average visibility in January

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

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 month when Aberdeen, South Dakota, sees the lowest average temperatures, with a high of 20.7°F (-6.3°C) and a 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

January through May, October through December are months with snowfall. January is the month with the most snowfall. Snow falls for 13 days and accumulates 3.82" (97mm) of snow.

Daylight

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

Sunshine

The month with the least sunshine is January, with an average of 3.9h of sunshine.

UV index

The months with the lowest UV index are January, February and November, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for average individuals.
Note: In January, the maximum UV index of 1 transforms into these recommendations:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Stay sun-safe with clothing that is both closely woven and worn loosely. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.

Updated: Jun 7, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month?

Aberdeen's January weather, marked by an average high temperature of 20.7°F (-6.3°C) and an average low temperature of 6.3°F (-14.3°C), is the coldest in the year.

How cold is January?

The high-temperature during January is 20.7°F (-6.3°C) and the low-temperature is 6.3°F (-14.3°C).

What is the most humid month?

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

What is the average humidity in January?

In Aberdeen, the average relative humidity in January is 88%.

What is the driest month?

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

How much does it rain in January?

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

When does it snow the most?

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

How much does it snow in January?

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

What is the average length of the day in January?

The average day length in January is 9h and 11min.

What time are sunrise and sunset in January?

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.

What is the month with the least sunshine?

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

How long on average sun shines in January?

In January, the average sunshine duration is 3.9h.

What is the month with the lowest UV index?

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

What is the UV index reading in January?

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

Today

Tomorrow

Long-term

Year January F M A M J J A S O N D

Dec

January

Feb

Average high temperature

25°F -3.9°C

20.7°F -6.3°C

23.7°F -4.6°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

10.2mph 16.4km/h

10.1mph 16.3km/h

10mph 16.1km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

18.9

17.2

16.3

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 1min

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 5min

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).

January weather forecast
Aberdeen, SD

Contents