May Weather in Alpena, United States

Last updated: June 24, 2025

In May, the average temperature in Alpena, United States hovers around 10°C (51°F), making it a pleasant time of year. Expect lows of -2°C (28°F) and highs that can reach up to 27°C (81°F). While exploring this destination, be prepared for 11 days of precipitation, totaling 84 mm (3.3 in), and keep in mind the average humidity level of 79%.

May Temperature in Alpena

In May in Alpena, the average temperature is 10°C (51°F). The maximum can reach 27°C (81°F) and the minimum can be as low as -2°C (28°F). Be prepared for a wide range of temperatures and pack accordingly for your travels.

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

The chart illustrates May temperature patterns in Alpena, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Alpena, May typically has an average temperature of 10°C (51°F), with highs reaching up to 27°C (81°F) and lows dropping to around -2°C (28°F).

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

May Precipitation in Alpena

In Alpena, in May, the precipitation amount is 84 mm (3.3 in) during a period of 11 days.

May Precipitation Trends in Alpena

The chart displays monthly precipitation patterns in Alpena, 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 Alpena, May typically receives around 84 mm (3.3 inches) of precipitation spread over approximately 11 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 Alpena

In Alpena in May, humidity is 79%. With an average temperature of 10°C (51°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities less enjoyable and travel somewhat uncomfortable unless you're properly layered.

May Average Humidity in Alpena

This chart illustrates the average monthly humidity levels in Alpena, 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 Alpena is approximately 79%, 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 Alpena

In Alpena 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 Alpena.

Maximum UV Index Levels in Alpena for May

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

Data source: Alpena 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 Alpena Compares to Other Months

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

This table compares monthly weather conditions in Alpena, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-5°C (23°F)	52 mm (2.0 inches)	92%	low
February Weather	-5°C (23°F)	56 mm (2.2 inches)	91%	moderate
March Weather	-1°C (31°F)	61 mm (2.4 inches)	87%	moderate
April Weather	4°C (39°F)	94 mm (3.7 inches)	85%	high
May Weather	10°C (51°F)	84 mm (3.3 inches)	79%	very high
June Weather	16°C (61°F)	91 mm (3.6 inches)	75%	very high
July Weather	20°C (69°F)	86 mm (3.4 inches)	75%	very high
August Weather	20°C (68°F)	84 mm (3.3 inches)	75%	very high
September Weather	16°C (61°F)	77 mm (3.0 inches)	79%	high
October Weather	10°C (50°F)	108 mm (4.3 inches)	85%	moderate
November Weather	3°C (37°F)	67 mm (2.6 inches)	88%	moderate
December Weather	-2°C (29°F)	62 mm (2.4 inches)	89%	low