January Weather in Glasgow, United States

Last updated: June 24, 2025

In January, the average temperature in Glasgow, United States hovers around 4°C (39°F), with a minimum plunging to -19°C (-2°F) and a maximum reaching 21°C (70°F). This month also sees approximately 102 mm (4.0 in) of precipitation spread over 11 days, contributing to an average humidity of 87%.

January Temperature in Glasgow

In January in Glasgow, the average temperature is 4°C (39°F). The maximum can reach 21°C (70°F), while the minimum can drop to as low as -19°C (-2°F). It's advisable to pack layers to ensure comfort during your travels.

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

The chart illustrates January temperature patterns in Glasgow, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Glasgow, January typically has an average temperature of 4°C (39°F), with highs reaching up to 21°C (70°F) and lows dropping to around -19°C (-2°F).

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

January Precipitation in Glasgow

In Glasgow in January, the precipitation amount is 102 mm (4.0 in) over the course of 11 days.

January Precipitation Trends in Glasgow

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

In Glasgow in January, humidity is 87%. With an average temperature of 4°C (39°F), this humidity feels like a damp chill that seeps into your bones, making travel uncomfortable and gritty, as the air hangs heavy and clings to your skin.

January Average Humidity in Glasgow

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

In Glasgow 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 Glasgow, you can check the information here.

Maximum UV Index Levels in Glasgow for January

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

Data source: Glasgow 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 Glasgow Compares to Other Months

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

This table compares monthly weather conditions in Glasgow, 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 (39°F)	102 mm (4.0 inches)	87%	moderate
February Weather	6°C (43°F)	184 mm (7.3 inches)	86%	high
March Weather	10°C (51°F)	145 mm (5.7 inches)	86%	high
April Weather	14°C (58°F)	157 mm (6.2 inches)	82%	very high
May Weather	21°C (69°F)	123 mm (4.8 inches)	82%	very high
June Weather	24°C (76°F)	164 mm (6.5 inches)	83%	extreme
July Weather	26°C (80°F)	117 mm (4.6 inches)	80%	extreme
August Weather	25°C (78°F)	129 mm (5.1 inches)	74%	very high
September Weather	23°C (73°F)	129 mm (5.1 inches)	71%	very high
October Weather	17°C (62°F)	141 mm (5.6 inches)	78%	high
November Weather	8°C (47°F)	92 mm (3.6 inches)	88%	moderate
December Weather	6°C (44°F)	145 mm (5.7 inches)	88%	moderate