Mountain Home Idaho Climate Data

Monthly Average Climate Data for Mountain Home Idaho

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January23.4 °F39.2 °F1.32 in.
February26.0 °F45.7 °F0.83 in.
March31.2 °F55.0 °F1.15 in.
April36.0 °F62.2 °F0.9 in.
May43.7 °F72.1 °F1.23 in.
June50.6 °F81.4 °F0.61 in.
July58.4 °F93.2 °F0.15 in.
August56.7 °F91.8 °F0.11 in.
September47.9 °F81.1 °F0.45 in.
October37.5 °F66.1 °F0.75 in.
November28.8 °F49.7 °F1.05 in.
December23.4 °F39.2 °F1.67 in.
Annual38.6 °F64.7 °F10.22 in.

Climate Data for Mountain Home Idaho

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 21 - May 31
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 7a : 0°F to 5°F
Plant Hardiness Zone - 2012Zone 6b : -5°F to 0°F
Current Drought ConditionsNormal
Köppen Climate ClassificationBSk - Cold Semi-Arid Climate