January Weather in Clayton, United States

Last updated: June 24, 2025

In January, the average temperature in Clayton, United States hovers around 10°C (50°F), but don't be surprised by the temperature swings: it can drop to -9°C (17°F) or rise to a warm 27°C (81°F). Expect moderate rainfall during your visit, with an average precipitation of 108 mm (4.2 in) spread over 10 days. With an average humidity of 83%, be prepared for a bit of a damp atmosphere!

January Temperature in Clayton

In January in Clayton, the average temperature is 10°C (50°F). The maximum can reach 27°C (81°F), while the minimum can drop as low as -9°C (17°F). Travelers should be prepared for a wide range of temperatures and pack accordingly.

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 10°C (50°F), with highs reaching up to 27°C (81°F) and lows dropping to around -9°C (17°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 108 mm (4.2 in) distributed over a duration of 10 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 108 mm (4.2 inches) of precipitation spread over approximately 10 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 Clayton

In Clayton in January, humidity is 83%. With an average temperature of 10°C (50°F), this humidity feels like a damp chill that clings to your skin, making outdoor exploration less comfortable and prompting visitors to seek cozy indoor activities.

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 83%, 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 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Clayton.

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 5, 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	10°C (50°F)	108 mm (4.2 inches)	83%	moderate
February Weather	13°C (56°F)	116 mm (4.6 inches)	82%	high
March Weather	16°C (61°F)	94 mm (3.7 inches)	79%	very high
April Weather	19°C (66°F)	125 mm (4.9 inches)	77%	very high
May Weather	23°C (74°F)	113 mm (4.4 inches)	74%	extreme
June Weather	26°C (79°F)	120 mm (4.7 inches)	70%	extreme
July Weather	27°C (81°F)	107 mm (4.2 inches)	78%	extreme
August Weather	27°C (81°F)	123 mm (4.8 inches)	78%	extreme
September Weather	25°C (78°F)	112 mm (4.4 inches)	79%	very high
October Weather	21°C (70°F)	119 mm (4.7 inches)	74%	very high
November Weather	14°C (57°F)	65 mm (2.5 inches)	83%	high
December Weather	11°C (53°F)	132 mm (5.2 inches)	86%	moderate