Mercer Tennessee Climate Data

Monthly Average Climate Data for Mercer Tennessee

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January29.4 °F47.3 °F4.28 in.
February32.7 °F52.3 °F4.97 in.
March40.1 °F61.1 °F5.65 in.
April49.0 °F71.8 °F5.43 in.
May58.8 °F79.6 °F5.51 in.
June66.9 °F86.9 °F4.55 in.
July70.2 °F89.8 °F4.34 in.
August68.3 °F89.3 °F3.48 in.
September61.2 °F83.8 °F3.99 in.
October49.0 °F73.5 °F3.95 in.
November39.0 °F61.1 °F4.39 in.
December32.5 °F50.6 °F5.49 in.
Annual49.8 °F70.6 °F56.03 in.

Climate Data for Mercer Tennessee

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost50-75 Days
Plant Hardiness Zone - 2023Zone 8a : 10°F to 15°F
Plant Hardiness Zone - 2012Zone 7b : 5°F to 10°F
Current Drought ConditionsNormal
Köppen Climate ClassificationCfa - Humid Subtropical Climate