Mount Vernon Indiana Climate Data

Monthly Average Climate Data for Mount Vernon Indiana

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January25.1 °F41.2 °F3.52 in.
February27.8 °F46.1 °F3.09 in.
March36.0 °F55.8 °F4.21 in.
April46.2 °F67.5 °F5.07 in.
May57.0 °F76.8 °F5.09 in.
June65.6 °F85.3 °F4.46 in.
July68.5 °F87.9 °F3.96 in.
August66.1 °F86.9 °F2.93 in.
September58.6 °F82.0 °F3.3 in.
October47.3 °F70.2 °F3.32 in.
November36.6 °F56.4 °F3.81 in.
December29.1 °F45.6 °F3.69 in.
Annual47 °F66.8 °F46.45 in.

Climate Data for Mount Vernon Indiana

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateApr. 11 - Apr. 20
Average Days With Frost75-100 Days
Plant Hardiness Zone - 2023Zone 7a : 0°F to 5°F
Plant Hardiness Zone - 2012Zone 6b : -5°F to 0°F
Current Drought ConditionsNormal
Köppen Climate ClassificationCfa - Humid Subtropical Climate