Silverton Idaho Climate Data

Monthly Average Climate Data for Silverton Idaho

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-5 °C1.4 °C115.82 mm
February-4.8 °C3.8 °C83.57 mm
March-2.7 °C8.2 °C104.9 mm
April0.2 °C12.9 °C76.96 mm
May3.8 °C18.7 °C69.85 mm
June7.1 °C22.2 °C68.58 mm
July9.3 °C27.8 °C26.92 mm
August8.9 °C27.9 °C25.65 mm
September5.3 °C22.2 °C37.59 mm
October1.2 °C13.3 °C87.12 mm
November-2.1 °C5.2 °C126.24 mm
December-5.1 °C0.8 °C114.81 mm
Annual1.3 °C13.7 °C938.01 mm

Climate Data for Silverton Idaho

Average First Frost DateSep.11 - Sep. 20
Average Last Frost DateJun. 21 - Jun. 30
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 6b : -20.6°C to -17.8°C
Plant Hardiness Zone - 2012Zone 6a : -23.3°C to -20.6°C
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationDsb - Humid Continental Climate - Dry Cool Summer
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