The climate in Gainesboro, Tennessee is usually warm. The annual average temperature amounts 14.2 °C (57.6 °F). Furthermore, the different seasons distinguish significantly in their temperatures. With an average temperature of 24.9 °C (76.8 °F) July ist the warmest month. January is the coldest month with a mean temperature of 1.8 °C (35.2 °F). Following this, the difference between the months amounts 23.1 °C (41.58 °F). Gainesboro has an annual total precipitation of 1370 mm (53.9 in). The seasons have a signifant influence on the amount of precipitation. With a total precipitation of 139.0 mm (5.5 in) on average March is the wettest month. In October it is only 82.0 mm (3.2 in). Thus, The range between the wettest and the driest month amounts 57.0 mm (2.2 in).