January Weather in Germantown, United States

Last updated: June 24, 2025

In January, the average temperature in Germantown, United States hovers around 2°C (36°F). Expect chilly days where the temperature can dip as low as -15°C (5°F), while warm spells may see highs of 21°C (70°F). Be prepared for the 84% humidity and a precipitation amount of 59 mm (2.3 in) spread over 8 days, ensuring you pack accordingly for a mix of weather!

January Temperature in Germantown

In January in Germantown, the average temperature is 2°C (36°F). Maximum temperatures can reach up to 21°C (70°F), while minimums can drop as low as -15°C (5°F). Travelers should be prepared for a wide range of temperatures and pack accordingly.

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

The chart illustrates January temperature patterns in Germantown, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Germantown, January typically has an average temperature of 2°C (36°F), with highs reaching up to 21°C (70°F) and lows dropping to around -15°C (5°F).

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

January Precipitation in Germantown

In Germantown in January, the total precipitation amount is 59 mm (2.3 in) spread over 8 days.

January Precipitation Trends in Germantown

The chart displays monthly precipitation patterns in Germantown, 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 Germantown, January typically receives around 59 mm (2.3 inches) of precipitation spread over approximately 8 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

January Humidity in Germantown

In Germantown in January, humidity is 84%. With an average temperature of 2°C (36°F), this humidity feels like a cold, damp blanket wrapping around you, making outdoor activities less inviting and requiring extra layers to stay comfortable while traveling.

January Average Humidity in Germantown

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

In Germantown in January, 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 Germantown, you can check the information here.

Maximum UV Index Levels in Germantown for January

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

Data source: Germantown 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 Germantown Compares to Other Months

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

This table compares monthly weather conditions in Germantown, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	2°C (36°F)	59 mm (2.3 inches)	84%	moderate
February Weather	4°C (40°F)	96 mm (3.8 inches)	83%	moderate
March Weather	7°C (45°F)	89 mm (3.5 inches)	83%	high
April Weather	13°C (56°F)	96 mm (3.8 inches)	81%	very high
May Weather	18°C (65°F)	138 mm (5.4 inches)	78%	very high
June Weather	23°C (74°F)	129 mm (5.1 inches)	79%	very high
July Weather	26°C (80°F)	154 mm (6.1 inches)	74%	very high
August Weather	25°C (77°F)	134 mm (5.3 inches)	72%	very high
September Weather	21°C (71°F)	105 mm (4.2 inches)	75%	very high
October Weather	16°C (61°F)	104 mm (4.1 inches)	81%	high
November Weather	8°C (46°F)	88 mm (3.5 inches)	85%	moderate
December Weather	4°C (40°F)	95 mm (3.7 inches)	84%	moderate