Island Park Idaho Climate Data

Monthly Average Climate Data for Island Park Idaho

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January5.4 °F27.8 °F3.59 in.
February6.7 °F31.9 °F2.64 in.
March13.9 °F40.9 °F2.32 in.
April22.6 °F49.2 °F2.32 in.
May31.4 °F59.4 °F2.86 in.
June37.6 °F68.5 °F2.31 in.
July42.3 °F79.4 °F1.03 in.
August40.2 °F79.3 °F1.09 in.
September33.0 °F69.1 °F1.35 in.
October24.8 °F53.1 °F1.93 in.
November14.6 °F37.3 °F2.45 in.
December6.2 °F27.2 °F3.76 in.
Annual23.2 °F51.9 °F27.65 in.

Climate Data for Island Park Idaho

Average First Frost DateAug. 1 - Aug. 10
Average Last Frost DateJun. 21 - Jun. 30
Average Days With FrostOver 180 Days
Plant Hardiness Zone - 2023Zone 4a : -30°F to -25°F
Plant Hardiness Zone - 2012Zone 3b : -35°F to -30°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfc - Subarctic With Cool Summers And Year Around Rainfall
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