January Weather in Dillon, United States

Last updated: June 24, 2025

In Dillon, United States, the average temperature in January hovers around a chilly -9°C (16°F). Expect lows that can plummet to -30°C (-22°F), while the warmest days might reach a maximum of 5°C (41°F). Precipitation during this month averages 19 mm (0.7 in) over approximately 6 days, and the air remains quite damp, with an average humidity of 94%.

January Temperature in Dillon

In January in Dillon, the average temperature is -9°C (16°F). The maximum can reach 5°C (41°F), while the minimum can plunge as low as -30°C (-22°F). Travelers should be prepared for extremely cold weather and dress in warm layers to fully enjoy their visit.

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

The chart illustrates January temperature patterns in Dillon, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Dillon, January typically has an average temperature of -9°C (16°F), with highs reaching up to 5°C (41°F) and lows dropping to around -30°C (-22°F).

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

January Precipitation in Dillon

In Dillon in January, the precipitation amount is 19 mm (0.7 in) over a span of 6 days.

January Precipitation Trends in Dillon

The chart displays monthly precipitation patterns in Dillon, 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 Dillon, January typically receives around 19 mm (0.7 inches) of precipitation spread over approximately 6 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 Dillon

In Dillon in January humidity is 94%. With an average temperature of -9°C (16°F), this humidity feels like an icy blanket enveloping you, making every breath a struggle and the air seemingly heavy. Traveling under these conditions can be challenging, as the cold dampness seeps into your clothes, chilling you to the bone and complicating outdoor activities.

January Average Humidity in Dillon

This chart illustrates the average monthly humidity levels in Dillon, 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 Dillon is approximately 94%, 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 Dillon

In Dillon 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 Dillon, you can check the information here.

Maximum UV Index Levels in Dillon for January

The chart shows the monthly maximum UV Index (UVI) for Dillon 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 Dillon typically reaches 3, which falls under the moderate exposure category.

Data source: Dillon 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 Dillon Compares to Other Months

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

This table compares monthly weather conditions in Dillon, 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 (16°F)	19 mm (0.7 inches)	94%	moderate
February Weather	-9°C (16°F)	44 mm (1.7 inches)	93%	moderate
March Weather	-3°C (27°F)	31 mm (1.2 inches)	91%	high
April Weather	1°C (35°F)	47 mm (1.8 inches)	87%	very high
May Weather	7°C (46°F)	77 mm (3.0 inches)	83%	very high
June Weather	14°C (57°F)	67 mm (2.6 inches)	80%	extreme
July Weather	19°C (66°F)	23 mm (0.9 inches)	75%	extreme
August Weather	17°C (64°F)	25 mm (1.0 inches)	66%	very high
September Weather	12°C (54°F)	35 mm (1.4 inches)	66%	very high
October Weather	2°C (36°F)	39 mm (1.5 inches)	77%	high
November Weather	-3°C (27°F)	24 mm (1.0 inches)	91%	moderate
December Weather	-9°C (17°F)	25 mm (1.0 inches)	96%	low