Mount Vernon Weather in May

The climate in Mount Vernon during May can be summarized as warm, humid and a little damp.

May is in the spring in Mount Vernon and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a muggy 30°C (85°F), whilst at night 15°C (59°F) is normal.

On average May is the 6th driest month of the year in Mount Vernon with around 93mm 3.6 inches of rain making it a a little damp 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 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 Mount Vernon in May 2025.