December Weather in Farmington, United States

Last updated: June 24, 2025

In Farmington, United States, the average temperature in December hovers around 1°C (34°F), with daily fluctuations ranging from a minimum of -24°C (-10°F) to a maximum of 23°C (73°F). Expect 43 mm (1.7 in) of precipitation over about 5 days, while the air maintains a notable average humidity of 84%.

December Temperature in Farmington

In December in Farmington, the average temperature is 1°C (34°F). Maximums can reach 23°C (73°F), and minimums can drop as low as -24°C (-10°F). Be prepared for a wide range of temperatures, making it essential to pack layers for your travels.

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

The chart illustrates December temperature patterns in Farmington, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Farmington, December typically has an average temperature of 1°C (34°F), with highs reaching up to 23°C (73°F) and lows dropping to around -24°C (-10°F).

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

December Precipitation in Farmington

In Farmington in December, the precipitation amount is 43 mm (1.7 in) over the course of 5 days.

December Precipitation Trends in Farmington

The chart displays monthly precipitation patterns in Farmington, 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 Farmington, December typically receives around 43 mm (1.7 inches) of precipitation spread over approximately 5 days.

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

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Millimeters (mm) Inches (in)

December Humidity in Farmington

In Farmington in December humidity is 84%. With an average temperature of 1°C (34°F), this humidity feels like a biting chill that seeps into your bones, making travel uncomfortable and requiring extra layers to keep warm while navigating the damp air.

December Average Humidity in Farmington

This chart illustrates the average monthly humidity levels in Farmington, 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 Farmington is approximately 84%, 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 Farmington

In Farmington in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Farmington, you can visit Hourly UV Index in Farmington.

Maximum UV Index Levels in Farmington for December

The chart shows the monthly maximum UV Index (UVI) for Farmington 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 Farmington typically reaches 2, which falls under the low exposure category.

Data source: Farmington 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 Farmington Compares to Other Months

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

This table compares monthly weather conditions in Farmington, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-4°C (26°F)	54 mm (2.1 inches)	81%	moderate
February Weather	-2°C (28°F)	57 mm (2.2 inches)	81%	moderate
March Weather	5°C (42°F)	95 mm (3.7 inches)	81%	high
April Weather	10°C (51°F)	88 mm (3.5 inches)	82%	very high
May Weather	18°C (64°F)	167 mm (6.6 inches)	78%	very high
June Weather	24°C (75°F)	128 mm (5.1 inches)	81%	extreme
July Weather	26°C (78°F)	73 mm (2.9 inches)	79%	very high
August Weather	24°C (75°F)	77 mm (3.0 inches)	77%	very high
September Weather	21°C (70°F)	111 mm (4.4 inches)	78%	very high
October Weather	13°C (55°F)	123 mm (4.9 inches)	78%	high
November Weather	5°C (40°F)	50 mm (2.0 inches)	87%	moderate
December Weather	1°C (34°F)	43 mm (1.7 inches)	84%	low