January Weather in Harleigh, United States

Last updated: June 24, 2025

In January, the average temperature in Harleigh, United States hovers around -2°C (29°F). However, temperatures can fluctuate dramatically, with minimums plummeting to -24°C (-10°F) and maximums soaring to 17°C (62°F). Expect 73 mm (2.9 in) of precipitation spread over about 8 days, and be prepared for high humidity levels averaging at 87%.

January Temperature in Harleigh

In January in Harleigh, the average temperature is -2°C (29°F), with maximums reaching 17°C (62°F) and minimums dropping as low as -24°C (-10°F). Be prepared for a wide range of temperatures to make the most of your travel experience.

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

The chart illustrates January temperature patterns in Harleigh, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Harleigh, January typically has an average temperature of -2°C (29°F), with highs reaching up to 17°C (62°F) and lows dropping to around -24°C (-10°F).

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

January Precipitation in Harleigh

In Harleigh in January, the precipitation amount is 73 mm (2.9 in) over a span of 8 days.

January Precipitation Trends in Harleigh

The chart displays monthly precipitation patterns in Harleigh, 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 Harleigh, January typically receives around 73 mm (2.9 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 Harleigh

In Harleigh in January humidity is 87%. With an average temperature of -2°C (29°F), this humidity feels like an uncomfortable chill that seeps into your bones, making it challenging to enjoy outdoor activities.

January Average Humidity in Harleigh

This chart illustrates the average monthly humidity levels in Harleigh, 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 Harleigh is approximately 87%, 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 Harleigh

In Harleigh 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 Harleigh, you can check the information here.

Maximum UV Index Levels in Harleigh for January

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

Data source: Harleigh 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 Harleigh Compares to Other Months

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

This table compares monthly weather conditions in Harleigh, 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)	73 mm (2.9 inches)	87%	moderate
February Weather	0°C (32°F)	101 mm (4.0 inches)	85%	moderate
March Weather	3°C (38°F)	94 mm (3.7 inches)	85%	high
April Weather	9°C (49°F)	108 mm (4.3 inches)	83%	very high
May Weather	15°C (60°F)	132 mm (5.2 inches)	75%	very high
June Weather	20°C (68°F)	114 mm (4.5 inches)	73%	very high
July Weather	23°C (74°F)	149 mm (5.8 inches)	65%	very high
August Weather	22°C (72°F)	148 mm (5.8 inches)	62%	very high
September Weather	18°C (65°F)	114 mm (4.5 inches)	66%	very high
October Weather	13°C (55°F)	115 mm (4.5 inches)	79%	high
November Weather	5°C (41°F)	93 mm (3.7 inches)	87%	moderate
December Weather	1°C (34°F)	91 mm (3.6 inches)	85%	low