Silverton Idaho Climate Data

Monthly Average Climate Data for Silverton Idaho

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January23.0 °F34.5 °F4.56 in.
February23.4 °F38.8 °F3.29 in.
March27.1 °F46.7 °F4.13 in.
April32.3 °F55.3 °F3.03 in.
May38.9 °F65.7 °F2.75 in.
June44.8 °F71.9 °F2.7 in.
July48.8 °F82.1 °F1.06 in.
August48.0 °F82.3 °F1.01 in.
September41.5 °F72.0 °F1.48 in.
October34.1 °F55.9 °F3.43 in.
November28.3 °F41.3 °F4.97 in.
December22.8 °F33.4 °F4.52 in.
Annual34.4 °F56.7 °F36.93 in.

Climate Data for Silverton Idaho

Average First Frost DateSep.11 - Sep. 20
Average Last Frost DateJun. 11 - Jun. 20
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 6b : -5°F to 0°F
Plant Hardiness Zone - 2012Zone 6a : -10°F to -5°F
Current Drought ConditionsSevere Drought
Köppen Climate ClassificationDsb - Humid Continental Climate - Dry Cool Summer
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