May Weather in Ellicott, United States

Last updated: June 24, 2025

In May, the average temperature in Ellicott, United States is a mild 14°C (57°F). Expect a dynamic range, with minimum temperatures potentially dipping to -3°C (27°F) and maximums soaring up to 33°C (91°F). Be prepared for some rainfall, as precipitation averages 59 mm (2.3 in) over about 10 days. Additionally, the average humidity sits at a comfortable 74%, making it an interesting month to experience!

May Temperature in Ellicott

In May in Ellicott, the average temperature is 14°C (57°F), with maximums reaching up to 33°C (91°F) and minimums dropping to as low as -3°C (27°F). It's advisable to pack layers and prepare for varying weather conditions when traveling during this month.

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

The chart illustrates May 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, May typically has an average temperature of 14°C (57°F), with highs reaching up to 33°C (91°F) and lows dropping to around -3°C (27°F).

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

May Precipitation in Ellicott

In Ellicott in May, the precipitation amount is 59 mm (2.3 in) over the course of 10 days.

May Precipitation Trends in Ellicott

The chart displays monthly precipitation patterns in Ellicott, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Ellicott, May typically receives around 59 mm (2.3 inches) of precipitation spread over approximately 10 days.

Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

May Humidity in Ellicott

In Ellicott in May, humidity is 74%. With an average temperature of 14°C (57°F), this humidity feels like a warm, damp blanket wrapping around you, making it slightly uncomfortable for traveling, as you may find yourself quickly sweating and in need of frequent breaks to cool down.

May Average Humidity in Ellicott

This chart illustrates the average monthly humidity levels in Ellicott, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Ellicott is approximately 74%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Ellicott

In Ellicott in May, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Ellicott.

Maximum UV Index Levels in Ellicott for May

The chart shows the monthly maximum UV Index (UVI) for Ellicott in May, 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 May, the maximum UV index in Ellicott typically reaches 12, which falls under the extreme exposure category.

Data source: Ellicott May 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 May 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 May’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 May’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