January Weather in Clayton, United States

Last updated: June 24, 2025

In January, the average temperature in Clayton, United States hovers around 3°C (37°F), with a potential minimum of -16°C (3°F) and a pleasant maximum reaching 20°C (68°F). You'll experience about 58 mm (2.3 in) of precipitation over 8 days, contributing to a notably high average humidity of 84%. Prepare for a mix of chilly days and occasional warmth!

January Temperature in Clayton

In January in Clayton, the average temperature is 3°C (37°F). Maximum temperatures can reach 20°C (68°F), while minimums can drop as low as -16°C (3°F). Travelers should be prepared for a wide range of temperatures and pack accordingly for both warmth and chill.

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 3°C (37°F), with highs reaching up to 20°C (68°F) and lows dropping to around -16°C (3°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 58 mm (2.3 in) over a span of 8 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 58 mm (2.3 inches) of precipitation spread over approximately 8 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 84%. With an average temperature of 3°C (37°F), this humidity feels like a damp chill that seeps into your bones, making outdoor excursions brisk and invigorating, yet requiring extra layers to stay comfortable.

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 84%, 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 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 Clayton, you can check the information here.

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 3, 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	3°C (37°F)	58 mm (2.3 inches)	84%	moderate
February Weather	5°C (41°F)	98 mm (3.8 inches)	83%	moderate
March Weather	8°C (46°F)	99 mm (3.9 inches)	83%	high
April Weather	14°C (57°F)	96 mm (3.8 inches)	81%	very high
May Weather	19°C (66°F)	129 mm (5.1 inches)	78%	very high
June Weather	24°C (75°F)	103 mm (4.1 inches)	79%	very high
July Weather	27°C (80°F)	144 mm (5.7 inches)	74%	very high
August Weather	25°C (78°F)	176 mm (6.9 inches)	72%	very high
September Weather	22°C (73°F)	94 mm (3.7 inches)	75%	very high
October Weather	17°C (63°F)	115 mm (4.5 inches)	81%	high
November Weather	9°C (49°F)	78 mm (3.1 inches)	85%	moderate
December Weather	5°C (42°F)	95 mm (3.7 inches)	84%	moderate