Brookston Indiana Climate Data

Monthly Average Climate Data for Brookston Indiana

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January17.4 °F33.0 °F2.55 in.
February20.4 °F37.3 °F2.1 in.
March29.5 °F48.9 °F2.76 in.
April40.0 °F61.9 °F3.93 in.
May51.2 °F72.9 °F4.33 in.
June60.5 °F81.5 °F4.95 in.
July63.4 °F83.9 °F4.54 in.
August61.3 °F82.6 °F3.77 in.
September53.8 °F77.9 °F3.04 in.
October42.7 °F65.2 °F3.05 in.
November32.4 °F50.3 °F2.99 in.
December23.4 °F38.2 °F2.4 in.
Annual41.3 °F61.1 °F40.41 in.

Climate Data for Brookston Indiana

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 11 - May 20
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 6a : -10°F to -5°F
Plant Hardiness Zone - 2012Zone 5b : -15°F to -10°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation