May Weather in Germantown, United States

Last updated: June 24, 2025

In Germantown, United States, the average temperature in May hovers around 14°C (58°F). However, be prepared for some variability, as temperatures can range from a chilly -1°C (31°F) to a sweltering 33°C (92°F). During this month, expect about 118 mm (4.6 in) of precipitation spread over 13 days, contributing to an average humidity of 76%. It’s a time when the climate truly shows its contrasts!

May Temperature in Germantown

In May in Germantown, the average temperature is 14°C (58°F). Maximums can reach up to 33°C (92°F), while minimums can drop as low as -1°C (31°F). Pack accordingly for a range of weather conditions to fully enjoy your travels.

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

The chart illustrates May temperature patterns in Germantown, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Germantown, May typically has an average temperature of 14°C (58°F), with highs reaching up to 33°C (92°F) and lows dropping to around -1°C (31°F).

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

May Precipitation in Germantown

In Germantown in May, the precipitation amount is 118 mm (4.6 in) over a span of 13 days.

May Precipitation Trends in Germantown

The chart displays monthly precipitation patterns in Germantown, 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 Germantown, May typically receives around 118 mm (4.6 inches) of precipitation spread over approximately 13 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 Germantown

In Germantown in May humidity is 76%. With an average temperature of 14°C (58°F), this humidity feels like a warm, thick blanket wrapping around you, making outdoor activities feel sticky and draining, and prompting travelers to seek shade and stay hydrated often.

May Average Humidity in Germantown

This chart illustrates the average monthly humidity levels in Germantown, 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 Germantown is approximately 76%, 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 Germantown

In Germantown in May, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Germantown.

Maximum UV Index Levels in Germantown for May

The chart shows the monthly maximum UV Index (UVI) for Germantown 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 Germantown typically reaches 10, which falls under the very high exposure category.

Data source: Germantown 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 Germantown Compares to Other Months

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

This table compares monthly weather conditions in Germantown, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-3°C (27°F)	71 mm (2.8 inches)	89%	moderate
February Weather	-2°C (29°F)	88 mm (3.4 inches)	88%	moderate
March Weather	2°C (35°F)	81 mm (3.2 inches)	86%	high
April Weather	8°C (47°F)	139 mm (5.5 inches)	84%	very high
May Weather	14°C (58°F)	118 mm (4.6 inches)	76%	very high
June Weather	19°C (67°F)	111 mm (4.4 inches)	72%	very high
July Weather	22°C (72°F)	168 mm (6.6 inches)	66%	very high
August Weather	21°C (70°F)	141 mm (5.5 inches)	64%	very high
September Weather	18°C (64°F)	109 mm (4.3 inches)	72%	very high
October Weather	12°C (54°F)	147 mm (5.8 inches)	81%	high
November Weather	4°C (39°F)	97 mm (3.8 inches)	87%	moderate
December Weather	0°C (31°F)	97 mm (3.8 inches)	84%	low