nomadseason

December Weather in Danbury, United States

Last updated: June 24, 2025

In December, the average temperature in Danbury, United States hovers around 6°C (44°F). Expect chilly conditions with minimum lows dipping to -9°C (17°F), while highs can reach a comfortable 22°C (72°F). Rainfall is moderate, with about 109 mm (4.3 in) spread over 8 days, and the air tends to be quite damp, boasting an average humidity of 86%.

December Temperature in Danbury

In December in Danbury, the average temperature is 6°C (44°F). Maximums can reach 22°C (72°F), while minimums can dip as low as -9°C (17°F). It's advisable to pack layers to accommodate the wide temperature range during your travels.

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 6°C (44°F), with highs reaching up to 22°C (72°F) and lows dropping to around -9°C (17°F).
JanFebMarAprMayJunJulAugSepOctNovDec394550586774787671624843
Data source: Temperature data for Danbury generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Danbury

In Danbury in December, the total precipitation amount is 109 mm (4.3 in) spread over 8 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 109 mm (4.3 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec8111980136129907310513312385109
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Danbury

In Danbury in December, humidity is 86%. With an average temperature of 6°C (44°F), this humidity feels like a damp chill that clings to your skin, making outdoor activities quite uncomfortable for traveling.

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 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%87%86%84%83%83%79%66%68%78%89%86%
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 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 Danbury, you can check the information here.

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 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46810101110109853
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.
 TemperaturePrecipitationHumidityUV
January Weather4°C (40°F)81 mm (3.2 inches)87%moderate
February Weather7°C (45°F)118 mm (4.7 inches)87%high
March Weather10°C (50°F)80 mm (3.2 inches)86%very high
April Weather15°C (59°F)136 mm (5.3 inches)84%very high
May Weather19°C (67°F)129 mm (5.1 inches)83%very high
June Weather23°C (74°F)90 mm (3.5 inches)83%extreme
July Weather26°C (79°F)73 mm (2.9 inches)79%very high
August Weather25°C (76°F)105 mm (4.1 inches)66%very high
September Weather22°C (72°F)133 mm (5.2 inches)68%very high
October Weather17°C (62°F)123 mm (4.8 inches)78%very high
November Weather9°C (48°F)85 mm (3.3 inches)89%moderate
December Weather6°C (44°F)109 mm (4.3 inches)86%moderate

Compare Danbury's Climate with Cities Worldwide