January Weather in Chatham, United States

Last updated: June 24, 2025

In January, the average temperature in Chatham, United States hovers around 9°C (49°F). Visitors can experience a range of conditions, with temperatures dipping as low as -12°C (11°F) and peaking at 27°C (81°F). Expect 110 mm (4.3 in) of precipitation spread over about 8 days, contributing to an average humidity of 82%. Be prepared for a variety of weather as you explore this unique destination!

January Temperature in Chatham

In January in Chatham, the average temperature is 9°C (49°F). The maximum can reach 27°C (81°F), while the minimum can drop as low as -12°C (11°F). Be prepared for a wide range of temperatures when traveling to Chatham this month.

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

The chart illustrates January temperature patterns in Chatham, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Chatham, January typically has an average temperature of 9°C (49°F), with highs reaching up to 27°C (81°F) and lows dropping to around -12°C (11°F).

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

January Precipitation in Chatham

In Chatham in January, the precipitation amount is 110 mm (4.3 in) over a period of 8 days.

January Precipitation Trends in Chatham

The chart displays monthly precipitation patterns in Chatham, 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 Chatham, January typically receives around 110 mm (4.3 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 Chatham

In Chatham in January, humidity is 82%. With an average temperature of 9°C (49°F), this humidity feels like a damp chill that clings to your skin, making outdoor activities less enjoyable and prompting travelers to seek warmth indoors or in cozy cafes.

January Average Humidity in Chatham

This chart illustrates the average monthly humidity levels in Chatham, 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 Chatham is approximately 82%, 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 Chatham

In Chatham 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 Chatham for better planning.

Maximum UV Index Levels in Chatham for January

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

Data source: Chatham 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 Chatham Compares to Other Months

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

This table compares monthly weather conditions in Chatham, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	9°C (49°F)	110 mm (4.3 inches)	82%	moderate
February Weather	11°C (53°F)	180 mm (7.1 inches)	80%	high
March Weather	16°C (62°F)	125 mm (4.9 inches)	78%	very high
April Weather	18°C (65°F)	160 mm (6.3 inches)	79%	extreme
May Weather	24°C (75°F)	138 mm (5.4 inches)	81%	extreme
June Weather	27°C (80°F)	122 mm (4.8 inches)	77%	extreme
July Weather	28°C (83°F)	97 mm (3.8 inches)	72%	extreme
August Weather	28°C (83°F)	125 mm (4.9 inches)	65%	extreme
September Weather	26°C (79°F)	90 mm (3.5 inches)	63%	very high
October Weather	20°C (69°F)	115 mm (4.5 inches)	70%	very high
November Weather	13°C (56°F)	81 mm (3.2 inches)	82%	high
December Weather	11°C (53°F)	128 mm (5.0 inches)	88%	moderate