January Weather in Henderson, United States

Last updated: June 24, 2025

In January, the average temperature in Henderson, United States hovers around 5°C (42°F), with a remarkable range where the minimum can dip to -18°C (-1°F) and the maximum can reach up to 23°C (74°F). Visitors should be prepared for a fairly wet month, as precipitation averages 102 mm (4.0 in) over approximately 8 days, contributing to an average humidity of 86%.

January Temperature in Henderson

In January in Henderson, the average temperature is 5°C (42°F). Maximum temperatures can reach 23°C (74°F), while minimums can drop as low as -18°C (-1°F). Travelers should be prepared for a wide range of temperatures, ensuring to pack for both cold and warm conditions.

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

The chart illustrates January temperature patterns in Henderson, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Henderson, January typically has an average temperature of 5°C (42°F), with highs reaching up to 23°C (74°F) and lows dropping to around -18°C (-1°F).

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

January Precipitation in Henderson

In Henderson in January, the precipitation amount is 102 mm (4.0 in) over the course of 8 days.

January Precipitation Trends in Henderson

The chart displays monthly precipitation patterns in Henderson, 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 Henderson, January typically receives around 102 mm (4.0 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 Henderson

In Henderson in January, humidity is 86%. With an average temperature of 5°C (42°F), this humidity feels like a damp chill that penetrates your layers, making outdoor activities quite uncomfortable and prompting you to seek warmth indoors more often.

January Average Humidity in Henderson

This chart illustrates the average monthly humidity levels in Henderson, 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 Henderson 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 Henderson

In Henderson in January, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Henderson for better planning.

Maximum UV Index Levels in Henderson for January

The chart shows the monthly maximum UV Index (UVI) for Henderson 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 Henderson typically reaches 4, which falls under the moderate exposure category.

Data source: Henderson 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 Henderson Compares to Other Months

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

This table compares monthly weather conditions in Henderson, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	5°C (42°F)	102 mm (4.0 inches)	86%	moderate
February Weather	7°C (46°F)	180 mm (7.1 inches)	85%	high
March Weather	12°C (54°F)	166 mm (6.5 inches)	84%	high
April Weather	16°C (60°F)	153 mm (6.0 inches)	81%	very high
May Weather	21°C (71°F)	113 mm (4.4 inches)	83%	extreme
June Weather	25°C (78°F)	107 mm (4.2 inches)	83%	extreme
July Weather	27°C (81°F)	132 mm (5.2 inches)	80%	extreme
August Weather	26°C (79°F)	110 mm (4.3 inches)	73%	very high
September Weather	24°C (75°F)	119 mm (4.7 inches)	70%	very high
October Weather	18°C (64°F)	118 mm (4.6 inches)	73%	high
November Weather	10°C (50°F)	82 mm (3.2 inches)	85%	moderate
December Weather	8°C (46°F)	145 mm (5.7 inches)	88%	moderate