May Weather in Garnavillo, United States

Last updated: June 24, 2025

In Garnavillo, United States, the average temperature in May hovers around 16°C (60°F), offering a pleasant climate for outdoor activities. However, be prepared for a range of temperatures—minimums can dip to -2°C (29°F), while the mercury can soar to 33°C (92°F) on warmer days. Expect about 150 mm (5.9 in) of precipitation over 14 days, contributing to an average humidity of 75%. So, pack accordingly for a mix of sunshine and showers!

May Temperature in Garnavillo

In May in Garnavillo, the average temperature is 16°C (60°F). The maximum can reach 33°C (92°F) and the minimum can be as low as -2°C (29°F). Be prepared for varying weather conditions if you're traveling during this time!

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

The chart illustrates May temperature patterns in Garnavillo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Garnavillo, May typically has an average temperature of 16°C (60°F), with highs reaching up to 33°C (92°F) and lows dropping to around -2°C (29°F).

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

May Precipitation in Garnavillo

In Garnavillo in May, the total precipitation amount is 150 mm (5.9 in), occurring over a span of 14 days.

May Precipitation Trends in Garnavillo

The chart displays monthly precipitation patterns in Garnavillo, 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 Garnavillo, May typically receives around 150 mm (5.9 inches) of precipitation spread over approximately 14 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 Garnavillo

In Garnavillo in May humidity is 75%. With an average temperature of 16°C (60°F), this humidity feels like a warm, muggy blanket enveloping you, making outdoor activities a bit uncomfortable and requiring frequent hydration breaks while traveling.

May Average Humidity in Garnavillo

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

In Garnavillo 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 Garnavillo.

Maximum UV Index Levels in Garnavillo for May

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

Data source: Garnavillo 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 Garnavillo Compares to Other Months

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

This table compares monthly weather conditions in Garnavillo, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-6°C (21°F)	44 mm (1.7 inches)	84%	moderate
February Weather	-6°C (22°F)	56 mm (2.2 inches)	85%	moderate
March Weather	2°C (37°F)	62 mm (2.5 inches)	84%	moderate
April Weather	8°C (47°F)	78 mm (3.1 inches)	83%	very high
May Weather	16°C (60°F)	150 mm (5.9 inches)	75%	very high
June Weather	22°C (72°F)	130 mm (5.1 inches)	79%	very high
July Weather	24°C (75°F)	103 mm (4.0 inches)	75%	very high
August Weather	22°C (71°F)	87 mm (3.4 inches)	69%	very high
September Weather	19°C (66°F)	120 mm (4.7 inches)	74%	very high
October Weather	10°C (51°F)	133 mm (5.2 inches)	79%	moderate
November Weather	2°C (36°F)	47 mm (1.9 inches)	88%	moderate
December Weather	-2°C (29°F)	40 mm (1.6 inches)	82%	low