January Weather in Danbury, United States

Last updated: June 24, 2025

The average temperature in Danbury, United States during January is a comfortable 13°C (56°F), although it can swing from a chilly -6°C (21°F) to a warm 27°C (81°F). Be prepared for a bit of rain, with an average precipitation amount of 76 mm (3.0 in) spread over 8 days. With an average humidity of 78%, the atmosphere can feel quite moist, adding to the character of this unique destination.

January Temperature in Danbury

In January in Danbury, the average temperature is 13°C (56°F), with maximums reaching 27°C (81°F) and minimums dipping as low as -6°C (21°F). Be prepared for a wide range of temperatures, making it essential to pack layers for your travels.

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

The chart illustrates January 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, January typically has an average temperature of 13°C (56°F), with highs reaching up to 27°C (81°F) and lows dropping to around -6°C (21°F).

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

January Precipitation in Danbury

In Danbury in January, the precipitation amount is 76 mm (3.0 in) spread over a duration of 8 days.

January Precipitation Trends in Danbury

The chart displays monthly precipitation patterns in Danbury, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Danbury, January typically receives around 76 mm (3.0 inches) of precipitation spread over approximately 8 days.

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

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Millimeters (mm) Inches (in)

January Humidity in Danbury

In Danbury in January, humidity is 78%. With an average temperature of 13°C (56°F), this humidity feels like a damp chill that can make outdoor activities a bit uncomfortable, creating a heavy atmosphere that clings to the skin, urging travelers to dress in layers for warmth and comfort.

January Average Humidity in Danbury

This chart illustrates the average monthly humidity levels in Danbury, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Danbury is approximately 78%, offering insight into how humid the weather typically is during this month.

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

January UV Index in Danbury

In Danbury in January, 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 January

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

Data source: Danbury January 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 January 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 January’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 January’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