Indianapolis Indiana Climate Data

Monthly Average Climate Data for Indianapolis Indiana

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January20.6 °F35.9 °F3.03 in.
February23.4 °F40.1 °F2.45 in.
March32.0 °F50.9 °F3.34 in.
April42.9 °F63.8 °F4.45 in.
May53.9 °F73.4 °F4.82 in.
June62.9 °F82.0 °F5.18 in.
July66.1 °F85.1 °F4.41 in.
August64.6 °F84.1 °F3.18 in.
September56.9 °F78.5 °F3.3 in.
October45.5 °F66.1 °F3.25 in.
November34.6 °F52.0 °F3.48 in.
December26.0 °F40.4 °F3.06 in.
Annual44.1 °F62.7 °F43.95 in.

Climate Data for Indianapolis Indiana

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateMay 1 - May 10
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 6b : -5°F to 0°F
Plant Hardiness Zone - 2012Zone 6a : -10°F to -5°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation