Ontonagon Weather in May

The climate in Ontonagon during May can be summarized as mild and reasonably dry.

May is in the spring in Ontonagon and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a cool 18°C (65°F), whilst at night 4°C (39°F) is normal.

On average May is the 5th wettest month of the year in Ontonagon with around 77mm 3 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 11 days, although this may vary considerably.

On the flip side this corresponds to an average of 9.4 hours of sunshine per day.

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Ontonagon in May 2024.