December Weather in Danbury, United States

Last updated: June 24, 2025

In Danbury, United States, the average temperature in December hovers around 15°C (60°F), making it a pleasant time to visit. However, be prepared for a range of temperatures as lows can dip to 0°C (33°F) and highs can reach up to 28°C (82°F). With an average precipitation of 95 mm (3.8 in) spread over 10 days, you might encounter some rain. Additionally, the humidity is relatively high at 84%, so don't forget to stay hydrated!

December Temperature in Danbury

In December in Danbury, the average temperature is 15°C (60°F). The maximum can reach 28°C (82°F), and the minimum can be as low as 0°C (33°F). This mild climate makes it a great time to explore the outdoors and enjoy various activities.

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

The chart illustrates December temperature patterns in Danbury, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Danbury, December typically has an average temperature of 15°C (60°F), with highs reaching up to 28°C (82°F) and lows dropping to around 0°C (33°F).

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

December Precipitation in Danbury

In Danbury in December, the precipitation amount is 95 mm (3.8 in) over the course of 10 days.

December Precipitation Trends in Danbury

The chart displays monthly precipitation patterns in Danbury, 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 Danbury, December typically receives around 95 mm (3.8 inches) of precipitation spread over approximately 10 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 Danbury

In Danbury in December humidity is 84%. With an average temperature of 15°C (60°F), this humidity feels like a warm blanket wrapped around you, making outdoor exploration feel stifling and sticky, while creating a heavy air that may slow your pace and dampen your enthusiasm for sightseeing.

December Average Humidity in Danbury

This chart illustrates the average monthly humidity levels in Danbury, 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 Danbury 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 Danbury

In Danbury in December, 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 Danbury.

Maximum UV Index Levels in Danbury for December

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

Data source: Danbury 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 Danbury Compares to Other Months

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

This table compares monthly weather conditions in Danbury, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	13°C (56°F)	76 mm (3.0 inches)	78%	moderate
February Weather	15°C (59°F)	73 mm (2.9 inches)	81%	very high
March Weather	19°C (66°F)	64 mm (2.5 inches)	76%	very high
April Weather	21°C (71°F)	83 mm (3.3 inches)	79%	extreme
May Weather	25°C (78°F)	165 mm (6.5 inches)	79%	extreme
June Weather	28°C (82°F)	158 mm (6.2 inches)	74%	extreme
July Weather	28°C (84°F)	151 mm (5.9 inches)	71%	extreme
August Weather	29°C (84°F)	183 mm (7.2 inches)	68%	extreme
September Weather	27°C (81°F)	204 mm (8.0 inches)	73%	extreme
October Weather	23°C (74°F)	105 mm (4.1 inches)	75%	very high
November Weather	18°C (64°F)	74 mm (2.9 inches)	78%	high
December Weather	15°C (60°F)	95 mm (3.8 inches)	84%	moderate