American Falls Weather in May

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

May is in the spring in American Falls and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a cool 20°C (67°F), whilst at night 3°C (38°F) is normal.

On average May is the wettest month of the year in American Falls with around 32mm 1.2 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.

On the flip side this corresponds to an average of 10.6 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 American Falls in May 2024.