January Weather in Henniker, United States

Last updated: June 24, 2025

In January, the average temperature in Henniker, United States hovers around -4°C (25°F). While chilly conditions can push the temperature down to a frigid -27°C (-16°F), it can also rise to a pleasant 17°C (62°F). Expect 70 mm (2.8 in) of precipitation spread over 8 days, contributing to an average humidity of 86%.

January Temperature in Henniker

In January in Henniker, the average temperature is -4°C (25°F). The maximum can reach 17°C (62°F) and the minimum can be as low as -27°C (-16°F). Be prepared for a wide range of temperatures and dress accordingly when traveling to Henniker this month.

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

The chart illustrates January temperature patterns in Henniker, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Henniker, January typically has an average temperature of -4°C (25°F), with highs reaching up to 17°C (62°F) and lows dropping to around -27°C (-16°F).

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

January Precipitation in Henniker

In Henniker in January, the total precipitation amount is 70 mm (2.8 in), spread over the course of 8 days.

January Precipitation Trends in Henniker

The chart displays monthly precipitation patterns in Henniker, 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 Henniker, January typically receives around 70 mm (2.8 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 Henniker

In Henniker in January, humidity is 86%. With an average temperature of -4°C (25°F), this humidity feels like a biting chill that seeps into your bones, making outdoor activities feel more strenuous and less enjoyable for traveling.

January Average Humidity in Henniker

This chart illustrates the average monthly humidity levels in Henniker, 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 Henniker is approximately 86%, 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 Henniker

In Henniker 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 Henniker, you can check the information here.

Maximum UV Index Levels in Henniker for January

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

Data source: Henniker 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 Henniker Compares to Other Months

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

This table compares monthly weather conditions in Henniker, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-4°C (25°F)	70 mm (2.8 inches)	86%	moderate
February Weather	-3°C (27°F)	83 mm (3.3 inches)	84%	moderate
March Weather	1°C (34°F)	77 mm (3.0 inches)	82%	moderate
April Weather	7°C (45°F)	127 mm (5.0 inches)	80%	very high
May Weather	14°C (57°F)	78 mm (3.1 inches)	72%	very high
June Weather	20°C (68°F)	85 mm (3.4 inches)	72%	very high
July Weather	22°C (73°F)	136 mm (5.3 inches)	67%	very high
August Weather	21°C (71°F)	93 mm (3.7 inches)	66%	very high
September Weather	17°C (64°F)	76 mm (3.0 inches)	71%	high
October Weather	11°C (52°F)	130 mm (5.1 inches)	78%	moderate
November Weather	3°C (38°F)	105 mm (4.1 inches)	84%	moderate
December Weather	-2°C (29°F)	115 mm (4.5 inches)	81%	low