May Weather in Monona, United States

Last updated: June 24, 2025

In May, the average temperature in Monona, United States hovers around 15°C (60°F), offering a pleasant climate. However, be prepared for temperature fluctuations, with a minimum of -3°C (28°F) and a soaring maximum of 34°C (93°F). During this month, expect approximately 154 mm (6.1 in) of precipitation spread over 15 days, contributing to an average humidity of 75%. Enjoy the varied weather while experiencing the charm of Monona!

May Temperature in Monona

In May in Monona, the average temperature is 15°C (60°F). The maximum can reach 34°C (93°F) and the minimum can be as low as -3°C (28°F). Be prepared for a wide range of temperatures and pack accordingly for your travels.

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

The chart illustrates May temperature patterns in Monona, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Monona, May typically has an average temperature of 15°C (60°F), with highs reaching up to 34°C (93°F) and lows dropping to around -3°C (28°F).

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

May Precipitation in Monona

In Monona in May, the precipitation amount is 154 mm (6.1 in) over the course of 15 days.

May Precipitation Trends in Monona

The chart displays monthly precipitation patterns in Monona, 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 Monona, May typically receives around 154 mm (6.1 inches) of precipitation spread over approximately 15 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 Monona

In Monona in May, humidity is 75%. With an average temperature of 15°C (60°F), this humidity feels like a warm, heavy blanket wrapping around you, making outdoor activities slightly uncomfortable and requiring extra hydration while exploring the sights.

May Average Humidity in Monona

This chart illustrates the average monthly humidity levels in Monona, 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 Monona is approximately 75%, 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 Monona

In Monona in May, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Monona.

Maximum UV Index Levels in Monona for May

The chart shows the monthly maximum UV Index (UVI) for Monona 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 Monona typically reaches 9, which falls under the very high exposure category.

Data source: Monona 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 Monona Compares to Other Months

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

This table compares monthly weather conditions in Monona, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-7°C (20°F)	41 mm (1.6 inches)	84%	moderate
February Weather	-6°C (21°F)	53 mm (2.1 inches)	85%	moderate
March Weather	2°C (36°F)	63 mm (2.5 inches)	84%	moderate
April Weather	8°C (46°F)	78 mm (3.1 inches)	83%	very high
May Weather	15°C (60°F)	154 mm (6.1 inches)	75%	very high
June Weather	22°C (71°F)	134 mm (5.3 inches)	79%	very high
July Weather	23°C (75°F)	113 mm (4.5 inches)	75%	very high
August Weather	21°C (71°F)	97 mm (3.8 inches)	69%	very high
September Weather	18°C (65°F)	121 mm (4.7 inches)	74%	very high
October Weather	10°C (50°F)	136 mm (5.4 inches)	79%	moderate
November Weather	2°C (36°F)	50 mm (2.0 inches)	88%	moderate
December Weather	-2°C (29°F)	39 mm (1.5 inches)	82%	low