January Weather in Gahanna, United States

Last updated: June 24, 2025

In January, the average temperature in Gahanna, United States hovers around -1°C (31°F). However, temperatures can vary significantly, dipping as low as -22°C (-8°F) and soaring to a maximum of 21°C (70°F). Expect about 81 mm (3.2 in) of precipitation over 9 days, accompanied by a high average humidity of 88%.

January Temperature in Gahanna

In January in Gahanna, the average temperature is -1°C (31°F). The maximum can reach 21°C (70°F), while the minimum can drop as low as -22°C (-8°F). Travelers should be prepared for a wide range of temperatures and pack accordingly for both chilly and milder conditions.

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

The chart illustrates January temperature patterns in Gahanna, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Gahanna, January typically has an average temperature of -1°C (31°F), with highs reaching up to 21°C (70°F) and lows dropping to around -22°C (-8°F).

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

January Precipitation in Gahanna

In Gahanna in January, the precipitation amount is 81 mm (3.2 in) spread over a duration of 9 days.

January Precipitation Trends in Gahanna

The chart displays monthly precipitation patterns in Gahanna, 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 Gahanna, January typically receives around 81 mm (3.2 inches) of precipitation spread over approximately 9 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 Gahanna

In Gahanna in January, humidity is 88%. With an average temperature of -1°C (31°F), this humidity feels like a biting cold that penetrates your clothing, making outdoor exploration challenging and the air clingy, adding an extra chill that can make you feel even colder than the temperature suggests.

January Average Humidity in Gahanna

This chart illustrates the average monthly humidity levels in Gahanna, 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 Gahanna is approximately 88%, 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 Gahanna

In Gahanna 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 Gahanna, you can check the information here.

Maximum UV Index Levels in Gahanna for January

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

Data source: Gahanna 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 Gahanna Compares to Other Months

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

This table compares monthly weather conditions in Gahanna, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-1°C (31°F)	81 mm (3.2 inches)	88%	moderate
February Weather	1°C (35°F)	107 mm (4.2 inches)	88%	moderate
March Weather	6°C (43°F)	112 mm (4.4 inches)	87%	high
April Weather	11°C (52°F)	117 mm (4.6 inches)	85%	very high
May Weather	18°C (64°F)	127 mm (5.0 inches)	81%	very high
June Weather	22°C (72°F)	146 mm (5.7 inches)	82%	very high
July Weather	24°C (76°F)	113 mm (4.4 inches)	81%	very high
August Weather	23°C (74°F)	80 mm (3.1 inches)	73%	very high
September Weather	20°C (69°F)	90 mm (3.5 inches)	73%	very high
October Weather	14°C (58°F)	100 mm (3.9 inches)	78%	high
November Weather	6°C (42°F)	96 mm (3.8 inches)	89%	moderate
December Weather	2°C (37°F)	102 mm (4.0 inches)	87%	moderate