Silverthorne Colorado Climate Data

Monthly Average Climate Data for Silverthorne Colorado

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January4.8 °F31.8 °F1.22 in.
February6.6 °F35.0 °F1.03 in.
March13.3 °F42.5 °F1.16 in.
April21.0 °F49.2 °F1.34 in.
May28.9 °F59.3 °F1.23 in.
June35.2 °F71.0 °F1.11 in.
July41.3 °F76.4 °F1.73 in.
August39.7 °F74.0 °F1.77 in.
September32.7 °F67.4 °F1.45 in.
October23.4 °F55.0 °F1.14 in.
November13.7 °F41.6 °F0.9 in.
December5.5 °F31.9 °F1.01 in.
Annual22.2 °F52.9 °F15.09 in.

Climate Data for Silverthorne Colorado

Average First Frost DateAug. 11 - Aug. 20
Average Last Frost DateJul. 1 - Jul. 10
Average Days With FrostOver 180 Days
Plant Hardiness Zone - 2023Zone 4b : -25°F to -20°F
Plant Hardiness Zone - 2012Zone 4b : -25°F to -20°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfc - Subarctic With Cool Summers And Year Around Rainfall