January Weather in Duncan, United States

Last updated: June 24, 2025

In January, the average temperature in Duncan, United States hovers around 7°C (45°F). While you might experience chilly days with lows of -9°C (17°F), there's a chance to enjoy warmer afternoons peaking at 21°C (70°F). Expect 26 mm (1.0 in) of precipitation over about 5 days, accompanied by an average humidity level of 81%. Be prepared for a mix of brisk and refreshing weather!

January Temperature in Duncan

In January in Duncan, the average temperature is 7°C (45°F). The maximum can reach 21°C (70°F), and the minimum can be as low as -9°C (17°F). Be prepared for a wide range of temperatures, making layering essential for your travels.

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

The chart illustrates January temperature patterns in Duncan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Duncan, January typically has an average temperature of 7°C (45°F), with highs reaching up to 21°C (70°F) and lows dropping to around -9°C (17°F).

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

January Precipitation in Duncan

In Duncan in January, the precipitation amount is 26 mm (1.0 in) over the course of 5 days.

January Precipitation Trends in Duncan

The chart displays monthly precipitation patterns in Duncan, 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 Duncan, January typically receives around 26 mm (1.0 inches) of precipitation spread over approximately 5 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 Duncan

In Duncan in January, humidity is 81%. With an average temperature of 7°C (45°F), this humidity feels like a damp chill wrapping around you, making outdoor adventures slightly uncomfortable and requiring extra layers to stay warm while exploring.

January Average Humidity in Duncan

This chart illustrates the average monthly humidity levels in Duncan, 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 Duncan is approximately 81%, 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 Duncan

In Duncan 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 Duncan.

Maximum UV Index Levels in Duncan for January

The chart shows the monthly maximum UV Index (UVI) for Duncan 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 Duncan typically reaches 5, which falls under the moderate exposure category.

Data source: Duncan 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 Duncan Compares to Other Months

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

This table compares monthly weather conditions in Duncan, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	7°C (45°F)	26 mm (1.0 inches)	81%	moderate
February Weather	9°C (48°F)	34 mm (1.3 inches)	82%	high
March Weather	14°C (57°F)	18 mm (0.7 inches)	68%	very high
April Weather	19°C (67°F)	3 mm (0.1 inches)	55%	extreme
May Weather	23°C (74°F)	3 mm (0.1 inches)	45%	extreme
June Weather	29°C (84°F)	6 mm (0.2 inches)	37%	extreme
July Weather	29°C (84°F)	50 mm (2.0 inches)	43%	extreme
August Weather	28°C (83°F)	23 mm (0.9 inches)	53%	extreme
September Weather	25°C (77°F)	29 mm (1.1 inches)	66%	extreme
October Weather	19°C (66°F)	15 mm (0.6 inches)	72%	very high
November Weather	13°C (56°F)	25 mm (1.0 inches)	81%	high
December Weather	8°C (46°F)	25 mm (1.0 inches)	84%	moderate