December Weather in Fairmont, United States

Last updated: June 24, 2025

In December, the average temperature in Fairmont, United States hovers around 10°C (50°F). Expect a chill in the air, with minimum temperatures dipping to -6°C (21°F) and occasional highs reaching 26°C (79°F). Be prepared for 124 mm (4.9 in) of precipitation spread over about 10 days, contributing to an average humidity of 86%.

December Temperature in Fairmont

In December in Fairmont, the average temperature is 10°C (50°F). Maximum temperatures can reach up to 26°C (79°F), while minimum temperatures can drop as low as -6°C (21°F). This range makes Fairmont a great destination for those who enjoy a mix of mild and brisk weather during their travels.

December Weather in Fairmont: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Fairmont, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Fairmont, December typically has an average temperature of 10°C (50°F), with highs reaching up to 26°C (79°F) and lows dropping to around -6°C (21°F).

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

December Precipitation in Fairmont

In Fairmont in December, the precipitation amount is 124 mm (4.9 in) spread over a duration of 10 days.

December Precipitation Trends in Fairmont

The chart displays monthly precipitation patterns in Fairmont, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Fairmont, December typically receives around 124 mm (4.9 inches) of precipitation spread over approximately 10 days.

Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

December Humidity in Fairmont

In Fairmont in December humidity is 86%. With an average temperature of 10°C (50°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities uncomfortable and sticky, which can dampen the spirit of travel.

December Average Humidity in Fairmont

This chart illustrates the average monthly humidity levels in Fairmont, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Fairmont is approximately 86%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Fairmont

In Fairmont in December, 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 Fairmont for better planning.

Maximum UV Index Levels in Fairmont for December

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

Data source: Fairmont December 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 December Weather in Fairmont Compares to Other Months

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

This table compares monthly weather conditions in Fairmont, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	8°C (47°F)	81 mm (3.2 inches)	85%	moderate
February Weather	11°C (53°F)	89 mm (3.5 inches)	82%	high
March Weather	13°C (56°F)	65 mm (2.6 inches)	81%	very high
April Weather	18°C (64°F)	95 mm (3.7 inches)	80%	very high
May Weather	22°C (73°F)	132 mm (5.2 inches)	81%	extreme
June Weather	25°C (77°F)	147 mm (5.8 inches)	81%	extreme
July Weather	27°C (81°F)	146 mm (5.7 inches)	81%	extreme
August Weather	26°C (80°F)	176 mm (6.9 inches)	80%	very high
September Weather	24°C (76°F)	160 mm (6.3 inches)	79%	very high
October Weather	20°C (68°F)	57 mm (2.3 inches)	80%	very high
November Weather	12°C (54°F)	89 mm (3.5 inches)	85%	high
December Weather	10°C (50°F)	124 mm (4.9 inches)	86%	moderate