January Weather in Sumiton, United States

Last updated: June 24, 2025

In January, the average temperature in Sumiton, United States hovers around 8°C (46°F), creating a chilling atmosphere. Expect a range that can drop to a frosty -13°C (9°F) or rise to a pleasant 26°C (79°F). During this month, 113 mm (4.5 in) of precipitation typically falls over 9 days, and the average humidity lingers at a high 85%, adding to the overall feeling of dampness.

January Temperature in Sumiton

In January in Sumiton, the average temperature is 8°C (46°F). The maximum can reach 26°C (79°F), and the minimum can be as low as -13°C (9°F). Be prepared for a wide range of temperatures when traveling during this time.

January Weather in Sumiton: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Sumiton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sumiton, January typically has an average temperature of 8°C (46°F), with highs reaching up to 26°C (79°F) and lows dropping to around -13°C (9°F).

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

January Precipitation in Sumiton

In Sumiton in January, the precipitation amount is 113 mm (4.5 in) over a span of 9 days.

January Precipitation Trends in Sumiton

The chart displays monthly precipitation patterns in Sumiton, 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 Sumiton, January typically receives around 113 mm (4.5 inches) of precipitation spread over approximately 9 days.

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

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Millimeters (mm) Inches (in)

January Humidity in Sumiton

In Sumiton in January humidity is 85%. With an average temperature of 8°C (46°F), this humidity feels like a cold, damp embrace that can leave travelers feeling chilled and uncomfortable, making outdoor exploration less appealing and encouraging the search for cozy indoor activities instead.

January Average Humidity in Sumiton

This chart illustrates the average monthly humidity levels in Sumiton, 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 Sumiton is approximately 85%, 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 Sumiton

In Sumiton in January, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Sumiton for better planning.

Maximum UV Index Levels in Sumiton for January

The chart shows the monthly maximum UV Index (UVI) for Sumiton 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 Sumiton typically reaches 4, which falls under the moderate exposure category.

Data source: Sumiton 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 Sumiton Compares to Other Months

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

This table compares monthly weather conditions in Sumiton, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	8°C (46°F)	113 mm (4.5 inches)	85%	moderate
February Weather	11°C (52°F)	179 mm (7.0 inches)	84%	high
March Weather	14°C (58°F)	165 mm (6.5 inches)	82%	very high
April Weather	17°C (63°F)	157 mm (6.2 inches)	82%	very high
May Weather	22°C (72°F)	97 mm (3.8 inches)	81%	extreme
June Weather	25°C (78°F)	136 mm (5.4 inches)	77%	extreme
July Weather	27°C (81°F)	96 mm (3.8 inches)	77%	extreme
August Weather	27°C (81°F)	114 mm (4.5 inches)	72%	extreme
September Weather	25°C (77°F)	85 mm (3.4 inches)	73%	very high
October Weather	19°C (67°F)	126 mm (5.0 inches)	73%	high
November Weather	11°C (53°F)	78 mm (3.1 inches)	85%	high
December Weather	10°C (49°F)	146 mm (5.8 inches)	88%	moderate