December Weather in Fort Lupton, United States

Last updated: June 24, 2025

In December, the average temperature in Fort Lupton, United States hovers around 1°C (34°F), presenting a chilly atmosphere. Expect to experience a minimum of -21°C (-5°F) on the coldest days, while the mercury may rise to a pleasant 22°C (72°F) at its peak. With an average humidity of 80% and 8 mm (0.3 in) of precipitation over 2 days, be prepared for a refreshing yet damp experience.

December Temperature in Fort Lupton

In December in Fort Lupton, the average temperature is 1°C (34°F). Maximum can reach 22°C (72°F) and minimum can be as low as -21°C (-5°F). Be prepared for a wide range of temperatures during your travels, and pack accordingly to ensure a comfortable experience.

December Weather in Fort Lupton: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Fort Lupton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Fort Lupton, December typically has an average temperature of 1°C (34°F), with highs reaching up to 22°C (72°F) and lows dropping to around -21°C (-5°F).

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

December Precipitation in Fort Lupton

In Fort Lupton in December, the precipitation amount is 8 mm (0.3 in) over the course of 2 days.

December Precipitation Trends in Fort Lupton

The chart displays monthly precipitation patterns in Fort Lupton, 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 Fort Lupton, December typically receives around 8 mm (0.3 inches) of precipitation spread over approximately 2 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 Fort Lupton

In Fort Lupton in December, humidity is 80%. With an average temperature of 1°C (34°F), this humidity feels like a damp chill that seeps through your layers, making outdoor activities uncomfortable and potentially discouraging for travelers.

December Average Humidity in Fort Lupton

This chart illustrates the average monthly humidity levels in Fort Lupton, 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 Fort Lupton is approximately 80%, 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 Fort Lupton

In Fort Lupton in December, 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 Fort Lupton, you can check the information here.

Maximum UV Index Levels in Fort Lupton for December

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

Data source: Fort Lupton 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 Fort Lupton Compares to Other Months

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

This table compares monthly weather conditions in Fort Lupton, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-1°C (31°F)	14 mm (0.5 inches)	74%	moderate
February Weather	-1°C (31°F)	14 mm (0.6 inches)	75%	moderate
March Weather	6°C (43°F)	46 mm (1.8 inches)	66%	high
April Weather	10°C (50°F)	36 mm (1.4 inches)	62%	very high
May Weather	15°C (59°F)	84 mm (3.3 inches)	74%	extreme
June Weather	22°C (72°F)	31 mm (1.2 inches)	76%	extreme
July Weather	25°C (77°F)	30 mm (1.2 inches)	75%	extreme
August Weather	24°C (75°F)	28 mm (1.1 inches)	80%	extreme
September Weather	20°C (69°F)	18 mm (0.7 inches)	79%	very high
October Weather	10°C (51°F)	22 mm (0.9 inches)	77%	high
November Weather	5°C (42°F)	14 mm (0.5 inches)	74%	moderate
December Weather	1°C (34°F)	8 mm (0.3 inches)	80%	moderate