January Weather in Hanover, United States

Last updated: June 24, 2025

In Hanover, United States, the average temperature in January hovers around -2°C (29°F). However, temperatures can range dramatically, with a minimum of -25°C (-13°F) and occasionally reaching a maximum of 18°C (64°F). During this month, expect about 28 mm (1.1 in) of precipitation spread over 4 days, and enjoy an average humidity level of 76%.

January Temperature in Hanover

In January in Hanover, the average temperature is -2°C (29°F). The maximum can reach 18°C (64°F), while the minimum can drop as low as -25°C (-13°F). Be prepared for significant temperature fluctuations during your travels.

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

The chart illustrates January temperature patterns in Hanover, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hanover, January typically has an average temperature of -2°C (29°F), with highs reaching up to 18°C (64°F) and lows dropping to around -25°C (-13°F).

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

January Precipitation in Hanover

In Hanover in January, the precipitation amount is 28 mm (1.1 in) over the course of 4 days.

January Precipitation Trends in Hanover

The chart displays monthly precipitation patterns in Hanover, 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 Hanover, January typically receives around 28 mm (1.1 inches) of precipitation spread over approximately 4 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 Hanover

In Hanover in January, humidity is 76%. With an average temperature of -2°C (29°F), this humidity feels like a biting chill that seeps into your bones, making outdoor activities less enjoyable and requiring extra layers to stay warm while exploring.

January Average Humidity in Hanover

This chart illustrates the average monthly humidity levels in Hanover, 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 Hanover is approximately 76%, 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 Hanover

In Hanover 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 Hanover, you can check the information here.

Maximum UV Index Levels in Hanover for January

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

Data source: Hanover 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 Hanover Compares to Other Months

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

This table compares monthly weather conditions in Hanover, 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 (29°F)	28 mm (1.1 inches)	76%	moderate
February Weather	-2°C (29°F)	26 mm (1.0 inches)	77%	moderate
March Weather	6°C (44°F)	88 mm (3.5 inches)	70%	high
April Weather	11°C (53°F)	54 mm (2.1 inches)	73%	very high
May Weather	18°C (64°F)	183 mm (7.2 inches)	82%	very high
June Weather	25°C (78°F)	94 mm (3.7 inches)	82%	extreme
July Weather	27°C (80°F)	74 mm (2.9 inches)	81%	extreme
August Weather	25°C (76°F)	88 mm (3.5 inches)	78%	very high
September Weather	22°C (72°F)	69 mm (2.7 inches)	71%	very high
October Weather	12°C (55°F)	119 mm (4.7 inches)	71%	high
November Weather	6°C (43°F)	28 mm (1.1 inches)	81%	moderate
December Weather	1°C (35°F)	31 mm (1.2 inches)	84%	moderate