Brookston Minnesota Climate Data

Monthly Average Climate Data for Brookston Minnesota

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-17.9 °C-7.2 °C22.35 mm
February-16.2 °C-4.1 °C20.83 mm
March-9.3 °C2.9 °C32.51 mm
April-2.3 °C10 °C60.71 mm
May4.2 °C17.7 °C86.11 mm
June9.6 °C22.9 °C116.33 mm
July12.6 °C25.7 °C105.92 mm
August11.8 °C24.7 °C94.49 mm
September7.7 °C19.9 °C84.58 mm
October1.2 °C11.7 °C76.96 mm
November-5.8 °C2.8 °C39.62 mm
December-13.4 °C-4.4 °C33.53 mm
Annual-1.5 °C10.2 °C773.94 mm

Climate Data for Brookston Minnesota

Average First Frost DateSep.11 - Sep. 20
Average Last Frost DateJun. 11 - Jun. 20
Average Days With FrostOver 180 Days
Plant Hardiness Zone - 2023Zone 4a : -34.4°C to -31.7°C
Plant Hardiness Zone - 2012Zone 3b : -37.2°C to -34.4°C
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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