Lost River Idaho Climate Data

Monthly Average Climate Data for Lost River Idaho

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-14.6 °C-1.9 °C31.75 mm
February-12.9 °C0.6 °C25.15 mm
March-7.9 °C5.7 °C27.94 mm
April-3.2 °C11.1 °C27.18 mm
May1.2 °C16.4 °C36.32 mm
June4.3 °C21.4 °C36.07 mm
July7.9 °C27.8 °C17.27 mm
August7.3 °C27.1 °C19.05 mm
September3.5 °C21.5 °C20.32 mm
October-2.1 °C13.7 °C24.89 mm
November-8.4 °C4.7 °C20.83 mm
December-13.7 °C-1.8 °C37.59 mm
Annual-3.2 °C12.2 °C324.36 mm

Climate Data for Lost River Idaho

Average First Frost DateAug. 21 - Aug. 31
Average Last Frost DateJun. 21 - Jun. 30
Average Days With FrostOver 180 Days
Plant Hardiness Zone - 2023Zone 5a : -28.9°C to -26.1°C
Plant Hardiness Zone - 2012Zone 4a : -34.4°C to -31.7°C
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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