January Weather in South Fulton, United States

Last updated: June 24, 2025

In January, the average temperature in South Fulton, United States hovers around 4°C (39°F). However, be prepared for a temperature range that can drop as low as -18°C (0°F) or rise to a pleasant 22°C (72°F). During this month, expect about 105 mm (4.1 in) of precipitation over 8 days, and with an average humidity of 86%, it can feel quite damp.

January Temperature in South Fulton

In January in South Fulton, the average temperature is 4°C (39°F). Maximums can reach 22°C (72°F), while minimums can drop to as low as -18°C (0°F). Be prepared for a wide range of temperatures if you're planning to travel during this time.

January Weather in South Fulton: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in South Fulton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In South Fulton, January typically has an average temperature of 4°C (39°F), with highs reaching up to 22°C (72°F) and lows dropping to around -18°C (0°F).

Data source: Temperature data for South Fulton generated using information from the Copernicus Climate Change Service.

January Precipitation in South Fulton

In South Fulton in January, the precipitation amount is 105 mm (4.1 in) over the course of 8 days.

January Precipitation Trends in South Fulton

The chart displays monthly precipitation patterns in South Fulton, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In South Fulton, January typically receives around 105 mm (4.1 inches) of precipitation spread over approximately 8 days.

Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

January Humidity in South Fulton

In South Fulton in January humidity is 86%. With an average temperature of 4°C (39°F), this humidity feels like a chilly mist enveloping you, making it essential to bundle up while exploring, as each breath comes with a damp chill that can be quite refreshing yet starkly invigorating for travelers.

January Average Humidity in South Fulton

This chart illustrates the average monthly humidity levels in South Fulton, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in South Fulton is approximately 86%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in South Fulton

In South Fulton in January, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in South Fulton, you can check the information here.

Maximum UV Index Levels in South Fulton for January

The chart shows the monthly maximum UV Index (UVI) for South Fulton in January, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In January, the maximum UV index in South Fulton typically reaches 3, which falls under the moderate exposure category.

Data source: South Fulton January UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How January Weather in South Fulton Compares to Other Months

Weather in South Fulton varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in South Fulton, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in South Fulton, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	4°C (39°F)	105 mm (4.1 inches)	86%	moderate
February Weather	6°C (43°F)	161 mm (6.3 inches)	84%	high
March Weather	11°C (52°F)	173 mm (6.8 inches)	84%	high
April Weather	15°C (59°F)	145 mm (5.7 inches)	80%	very high
May Weather	21°C (71°F)	124 mm (4.9 inches)	82%	extreme
June Weather	25°C (78°F)	109 mm (4.3 inches)	83%	extreme
July Weather	27°C (81°F)	113 mm (4.5 inches)	79%	extreme
August Weather	26°C (79°F)	97 mm (3.8 inches)	76%	very high
September Weather	24°C (75°F)	86 mm (3.4 inches)	75%	very high
October Weather	17°C (63°F)	113 mm (4.4 inches)	74%	high
November Weather	9°C (48°F)	104 mm (4.1 inches)	85%	moderate
December Weather	7°C (45°F)	117 mm (4.6 inches)	88%	moderate