January Weather in Georgetown, United States

Last updated: June 24, 2025

In January, the average temperature in Georgetown, United States hovers around -2°C (29°F), with a striking range of -27°C (-17°F) at its coldest and 18°C (65°F) at its warmest. Expect 75 mm (3.0 in) of precipitation over approximately 8 days, contributing to the area's 85% humidity. Prepare for a month that swings from chilly to pleasantly mild!

January Temperature in Georgetown

In January in Georgetown, the average temperature is -2°C (29°F). Maximum temperatures can reach 18°C (65°F), while the minimum can drop as low as -27°C (-17°F). Visitors should be prepared for a wide range of weather conditions when traveling during this time.

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

The chart illustrates January temperature patterns in Georgetown, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Georgetown, January typically has an average temperature of -2°C (29°F), with highs reaching up to 18°C (65°F) and lows dropping to around -27°C (-17°F).

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

January Precipitation in Georgetown

In Georgetown in January, the total precipitation amount is 75 mm (3.0 in) over the course of 8 days.

January Precipitation Trends in Georgetown

The chart displays monthly precipitation patterns in Georgetown, 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 Georgetown, January typically receives around 75 mm (3.0 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 Georgetown

In Georgetown in January, humidity is 85%. With an average temperature of -2°C (29°F), this humidity feels like a chilling, damp blanket that clings to your skin, making travel uncomfortable and often prompting an urgent search for warmth and shelter.

January Average Humidity in Georgetown

This chart illustrates the average monthly humidity levels in Georgetown, 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 Georgetown is approximately 85%, 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 Georgetown

In Georgetown 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 Georgetown, you can check the information here.

Maximum UV Index Levels in Georgetown for January

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

Data source: Georgetown 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 Georgetown Compares to Other Months

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

This table compares monthly weather conditions in Georgetown, 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)	75 mm (3.0 inches)	85%	moderate
February Weather	-1°C (31°F)	79 mm (3.1 inches)	85%	moderate
March Weather	5°C (42°F)	102 mm (4.0 inches)	86%	high
April Weather	10°C (51°F)	96 mm (3.8 inches)	87%	very high
May Weather	17°C (64°F)	158 mm (6.2 inches)	81%	very high
June Weather	23°C (73°F)	103 mm (4.1 inches)	82%	very high
July Weather	25°C (77°F)	101 mm (4.0 inches)	81%	very high
August Weather	23°C (74°F)	105 mm (4.1 inches)	79%	very high
September Weather	21°C (69°F)	63 mm (2.5 inches)	78%	very high
October Weather	14°C (57°F)	107 mm (4.2 inches)	81%	high
November Weather	5°C (41°F)	76 mm (3.0 inches)	89%	moderate
December Weather	2°C (35°F)	64 mm (2.5 inches)	86%	low