Plymouth (MN) Weather & Climate: Best Time to Visit

In Plymouth, temperatures differ significantly between summer and winter months. Average daytime temperatures reach a comfortable 29°C (84°F) in July. In January, the coolest month of the year, temperatures drop to a very cold -5°C (23°F).

At night, temperatures range from around 18°C (64°F) in July to -14°C (7°F) in January.

Check out our detailed temperature page for more information.

Temperature ranges by month

On average, Plymouth receives a reasonable amount of rain/snowfall, with an annual precipitation of 825 mm (32 in). Plymouth can be quite wet during June, receiving approximately 123 mm (4.8 in) of precipitation over 14 rainy days.

In contrast, during the driest month (January), you will experience much drier conditions, with 16 mm (0.6 in) of precipitation spread across 7 snowy days. For more details, please visit our Plymouth Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

Plymouth can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 11.7 hours of sunshine daily. In contrast, the city experiences much darker days in November, with only 3.8 hours of sunlight per day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

Daily percentage of sunshine

The relative humidity is high throughout the year in Plymouth.

The city experiences its highest humidity in December, reaching 74%. In April, the humidity drops to its lowest level at 60%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year

The mean wind speed varies between 4 m/s (8 knots) and 6 m/s (12 knots) throughout the year. It is lowest in July and August and highest during April. What does this mean?

The mean monthly wind speed over the year (meters per second)