Brookston Indiana Climate Data

Monthly Average Climate Data for Brookston Indiana

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-8.1 °C0.6 °C64.77 mm
February-6.4 °C2.9 °C53.34 mm
March-1.4 °C9.4 °C70.1 mm
April4.4 °C16.6 °C99.82 mm
May10.7 °C22.7 °C109.98 mm
June15.8 °C27.5 °C125.73 mm
July17.4 °C28.8 °C115.32 mm
August16.3 °C28.1 °C95.76 mm
September12.1 °C25.5 °C77.22 mm
October5.9 °C18.4 °C77.47 mm
November0.2 °C10.2 °C75.95 mm
December-4.8 °C3.4 °C60.96 mm
Annual5.2 °C16.2 °C1026.42 mm

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 : -23.3°C to -20.6°C
Plant Hardiness Zone - 2012Zone 5b : -26.1°C to -23.3°C
Current Drought ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation