January Weather in Ellicott, United States

Last updated: June 24, 2025

In January, the average temperature in Ellicott, United States hovers around -1°C (31°F). Expect chilly conditions, with temperatures dipping as low as -18°C (0°F) and occasionally rising to 18°C (64°F). During this month, anticipate about 12 mm (0.5 in) of precipitation spread over 3 days, with an average humidity of 74%, making it a brisk and moist time of year.

January Temperature in Ellicott

In January in Ellicott, the average temperature is -1°C (31°F), with a maximum that can reach 18°C (64°F) and a minimum that can drop as low as -18°C (0°F). Travelers should be prepared for a wide range of temperatures, from chilly to mild, by packing accordingly.

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

The chart illustrates January temperature patterns in Ellicott, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ellicott, January typically has an average temperature of -1°C (31°F), with highs reaching up to 18°C (64°F) and lows dropping to around -18°C (0°F).

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

January Precipitation in Ellicott

In Ellicott in January, the precipitation amount is 12 mm (0.5 in) during a span of 3 days.

January Precipitation Trends in Ellicott

The chart displays monthly precipitation patterns in Ellicott, 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 Ellicott, January typically receives around 12 mm (0.5 inches) of precipitation spread over approximately 3 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 Ellicott

In Ellicott in January, humidity is 74%. With an average temperature of -1°C (31°F), this humidity feels like a brisk chill that cuts through layers of clothing, making outdoor activities uncomfortable and potentially damp, so travelers should dress warmly and prepare for the persistent moisture in the air.

January Average Humidity in Ellicott

This chart illustrates the average monthly humidity levels in Ellicott, 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 Ellicott is approximately 74%, 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 Ellicott

In Ellicott in January, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Ellicott for better planning.

Maximum UV Index Levels in Ellicott for January

The chart shows the monthly maximum UV Index (UVI) for Ellicott 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 Ellicott typically reaches 4, which falls under the moderate exposure category.

Data source: Ellicott 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 Ellicott Compares to Other Months

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

This table compares monthly weather conditions in Ellicott, 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)	12 mm (0.5 inches)	74%	moderate
February Weather	-1°C (30°F)	16 mm (0.6 inches)	75%	high
March Weather	5°C (41°F)	42 mm (1.6 inches)	66%	very high
April Weather	9°C (48°F)	33 mm (1.3 inches)	62%	extreme
May Weather	14°C (57°F)	59 mm (2.3 inches)	74%	extreme
June Weather	21°C (70°F)	30 mm (1.2 inches)	76%	extreme
July Weather	23°C (74°F)	63 mm (2.5 inches)	75%	extreme
August Weather	22°C (72°F)	39 mm (1.5 inches)	80%	extreme
September Weather	19°C (66°F)	22 mm (0.9 inches)	79%	very high
October Weather	10°C (49°F)	28 mm (1.1 inches)	77%	high
November Weather	4°C (40°F)	13 mm (0.5 inches)	74%	moderate
December Weather	1°C (33°F)	8 mm (0.3 inches)	80%	moderate