January Weather in Sparta, United States

Last updated: June 24, 2025

In January, the average temperature in Sparta, United States hovers around 5°C (40°F), with extremes ranging from a chilly -15°C (6°F) to a pleasantly warm 23°C (73°F). Expect about 110 mm (4.3 in) of precipitation spread over 11 days, contributing to a relatively high average humidity of 87%.

January Temperature in Sparta

In January in Sparta, the average temperature is 5°C (40°F), with maximums reaching 23°C (73°F) and minimums dropping as low as -15°C (6°F). This range means that travelers should be prepared for both warm and cold weather during their visit.

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

The chart illustrates January temperature patterns in Sparta, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sparta, January typically has an average temperature of 5°C (40°F), with highs reaching up to 23°C (73°F) and lows dropping to around -15°C (6°F).

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

January Precipitation in Sparta

In Sparta in January, the precipitation amount is 110 mm (4.3 in) spread over 11 days.

January Precipitation Trends in Sparta

The chart displays monthly precipitation patterns in Sparta, 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 Sparta, January typically receives around 110 mm (4.3 inches) of precipitation spread over approximately 11 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 Sparta

In Sparta in January, humidity is 87%. With an average temperature of 5°C (40°F), this humidity feels like a damp chill that wraps around you, making outdoor excursions less enjoyable and requiring extra layers to stay comfortable while exploring.

January Average Humidity in Sparta

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

In Sparta 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 Sparta, you can check the information here.

Maximum UV Index Levels in Sparta for January

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

Data source: Sparta 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 Sparta Compares to Other Months

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

This table compares monthly weather conditions in Sparta, 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 (40°F)	110 mm (4.3 inches)	87%	moderate
February Weather	7°C (46°F)	188 mm (7.4 inches)	87%	high
March Weather	11°C (52°F)	166 mm (6.5 inches)	85%	very high
April Weather	15°C (59°F)	149 mm (5.9 inches)	82%	very high
May Weather	20°C (69°F)	129 mm (5.1 inches)	83%	extreme
June Weather	24°C (75°F)	124 mm (4.9 inches)	82%	extreme
July Weather	26°C (79°F)	124 mm (4.9 inches)	78%	extreme
August Weather	25°C (77°F)	116 mm (4.6 inches)	67%	very high
September Weather	23°C (73°F)	113 mm (4.4 inches)	64%	very high
October Weather	17°C (63°F)	127 mm (5.0 inches)	74%	high
November Weather	9°C (49°F)	78 mm (3.1 inches)	87%	moderate
December Weather	7°C (45°F)	148 mm (5.8 inches)	88%	moderate