January Weather in Clayton, United States

Last updated: June 24, 2025

In January, the average temperature in Clayton, United States hovers around 2°C (36°F), with lows plummeting to -18°C (0°F) and highs reaching a pleasant 23°C (74°F). Expect about 15 mm (0.6 in) of precipitation spread over 3 days, and enjoy a humidity level of 73% that adds to the character of the season.

January Temperature in Clayton

In January in Clayton, the average temperature is 2°C (36°F). Maximum temperatures can reach 23°C (74°F), while minimums can drop as low as -18°C (0°F). It's advisable to pack layers and prepare for a range of weather conditions if you plan to travel during this time.

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

The chart illustrates January temperature patterns in Clayton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Clayton, January typically has an average temperature of 2°C (36°F), with highs reaching up to 23°C (74°F) and lows dropping to around -18°C (0°F).

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

January Precipitation in Clayton

In Clayton in January, the precipitation amount is 15 mm (0.6 in) over the course of 3 days.

January Precipitation Trends in Clayton

The chart displays monthly precipitation patterns in Clayton, 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 Clayton, January typically receives around 15 mm (0.6 inches) of precipitation spread over approximately 3 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 Clayton

In Clayton in January, humidity is 73%. With an average temperature of 2°C (36°F), this humidity feels like a chilly dampness that clings to your skin, making outdoor activities less enjoyable and necessitating warm layers to stay comfortable while traveling.

January Average Humidity in Clayton

This chart illustrates the average monthly humidity levels in Clayton, 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 Clayton is approximately 73%, 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 Clayton

In Clayton 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 Clayton for better planning.

Maximum UV Index Levels in Clayton for January

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

Data source: Clayton 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 Clayton Compares to Other Months

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

This table compares monthly weather conditions in Clayton, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	2°C (36°F)	15 mm (0.6 inches)	73%	moderate
February Weather	3°C (37°F)	10 mm (0.4 inches)	76%	high
March Weather	8°C (47°F)	34 mm (1.4 inches)	64%	very high
April Weather	12°C (53°F)	37 mm (1.5 inches)	61%	extreme
May Weather	17°C (63°F)	50 mm (2.0 inches)	71%	extreme
June Weather	23°C (74°F)	34 mm (1.3 inches)	75%	extreme
July Weather	25°C (76°F)	45 mm (1.8 inches)	75%	extreme
August Weather	23°C (74°F)	56 mm (2.2 inches)	80%	extreme
September Weather	20°C (69°F)	39 mm (1.5 inches)	80%	very high
October Weather	13°C (55°F)	35 mm (1.4 inches)	78%	very high
November Weather	8°C (46°F)	9 mm (0.4 inches)	76%	moderate
December Weather	3°C (38°F)	13 mm (0.5 inches)	78%	moderate