May Weather in Rolla, United States

Last updated: June 24, 2025

In May, the average temperature in Rolla, United States hovers around 11°C (53°F). However, be prepared for a range of temperatures, with minimums dipping to -7°C (20°F) and maximums soaring to 32°C (89°F). Expect a precipitation of approximately 42 mm (1.7 in) over the course of 7 days, and a comfortable average humidity of 74%.

May Temperature in Rolla

In May in Rolla, the average temperature is 11°C (53°F). The maximum can reach 32°C (89°F), while the minimum can drop as low as -7°C (20°F). Be prepared for a wide range of temperatures when traveling during this time.

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

The chart illustrates May temperature patterns in Rolla, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rolla, May typically has an average temperature of 11°C (53°F), with highs reaching up to 32°C (89°F) and lows dropping to around -7°C (20°F).

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

May Precipitation in Rolla

In Rolla in May, the total precipitation amount is 42 mm (1.7 in) over the course of 7 days.

May Precipitation Trends in Rolla

The chart displays monthly precipitation patterns in Rolla, 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 Rolla, May typically receives around 42 mm (1.7 inches) of precipitation spread over approximately 7 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 Rolla

In Rolla in May humidity is 74%. With an average temperature of 11°C (53°F), this humidity feels like a damp chill that seeps into your bones, making outdoor adventures less inviting and suggesting that travelers should dress in layers to stay warm and comfortable.

May Average Humidity in Rolla

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

In Rolla in May, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Rolla.

Maximum UV Index Levels in Rolla for May

The chart shows the monthly maximum UV Index (UVI) for Rolla 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 Rolla typically reaches 8, which falls under the very high exposure category.

Data source: Rolla 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 Rolla Compares to Other Months

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

This table compares monthly weather conditions in Rolla, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-13°C (8°F)	15 mm (0.6 inches)	92%	low
February Weather	-15°C (5°F)	16 mm (0.6 inches)	90%	moderate
March Weather	-5°C (24°F)	23 mm (0.9 inches)	88%	moderate
April Weather	2°C (36°F)	22 mm (0.9 inches)	81%	very high
May Weather	11°C (53°F)	42 mm (1.7 inches)	74%	very high
June Weather	18°C (65°F)	78 mm (3.1 inches)	72%	very high
July Weather	20°C (69°F)	59 mm (2.3 inches)	74%	very high
August Weather	18°C (65°F)	70 mm (2.8 inches)	76%	very high
September Weather	13°C (56°F)	73 mm (2.9 inches)	73%	high
October Weather	5°C (41°F)	51 mm (2.0 inches)	76%	moderate
November Weather	-4°C (24°F)	26 mm (1.0 inches)	86%	low
December Weather	-10°C (15°F)	23 mm (0.9 inches)	91%	low