Saint Johnsbury Weather in August

The climate in Saint Johnsbury during August can be summarized as warm and damp.

August is in the summer in Saint Johnsbury and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around 25°C (77°F), whilst at night 12°C (53°F) is normal.

On average August is the wettest month of the year in Saint Johnsbury with around 108mm 4.2 inches of rain making it a damp time to visit. This rainfall is typically spread over 13 days, although this may vary considerably.

On the flip side this corresponds to an average of 8.1 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 Saint Johnsbury in August 2024.