May Weather in Knox, United States

Last updated: June 24, 2025

In May, the average temperature in Knox, United States hovers around 15°C (60°F), with possible extremes from a chilly -2°C (28°F) to a warm 30°C (86°F). During this month, expect about 152 mm (6.0 in) of precipitation spread across 17 days, contributing to an average humidity of 80%. Prepare for a blend of cool breezes and refreshing rain!

May Temperature in Knox

In May in Knox, the average temperature is 15°C (60°F). The maximum can reach 30°C (86°F) and the minimum can be as low as -2°C (28°F). Be prepared for a wide range of temperatures if you're planning to travel during this time!

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

The chart illustrates May temperature patterns in Knox, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Knox, May typically has an average temperature of 15°C (60°F), with highs reaching up to 30°C (86°F) and lows dropping to around -2°C (28°F).

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

May Precipitation in Knox

In Knox in May, the precipitation amount is 152 mm (6.0 in) over the course of 17 days.

May Precipitation Trends in Knox

The chart displays monthly precipitation patterns in Knox, 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 Knox, May typically receives around 152 mm (6.0 inches) of precipitation spread over approximately 17 days.

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

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Millimeters (mm) Inches (in)

May Humidity in Knox

In Knox in May humidity is 80%. With an average temperature of 15°C (60°F), this humidity feels like a warm, sticky embrace that can make even the simplest stroll feel like a workout, leaving travelers yearning for a refreshing breeze or shade to escape the weight of the air.

May Average Humidity in Knox

This chart illustrates the average monthly humidity levels in Knox, 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 Knox is approximately 80%, 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 Knox

In Knox 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 Knox.

Maximum UV Index Levels in Knox for May

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

Data source: Knox 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 Knox Compares to Other Months

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

This table compares monthly weather conditions in Knox, 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 (28°F)	101 mm (4.0 inches)	89%	moderate
February Weather	-1°C (31°F)	115 mm (4.5 inches)	90%	moderate
March Weather	3°C (38°F)	108 mm (4.2 inches)	89%	high
April Weather	9°C (48°F)	136 mm (5.3 inches)	88%	very high
May Weather	15°C (60°F)	152 mm (6.0 inches)	80%	very high
June Weather	20°C (68°F)	143 mm (5.6 inches)	79%	very high
July Weather	22°C (72°F)	150 mm (5.9 inches)	74%	very high
August Weather	21°C (70°F)	112 mm (4.4 inches)	64%	very high
September Weather	18°C (65°F)	126 mm (4.9 inches)	67%	very high
October Weather	12°C (54°F)	131 mm (5.2 inches)	81%	high
November Weather	4°C (39°F)	103 mm (4.1 inches)	89%	moderate
December Weather	1°C (33°F)	104 mm (4.1 inches)	88%	low