Harrison Idaho Climate Data

Monthly Average Climate Data for Harrison Idaho

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January24.8 °F36.4 °F3.06 in.
February25.1 °F41.0 °F2.13 in.
March29.4 °F49.3 °F2.42 in.
April34.5 °F57.5 °F1.87 in.
May41.7 °F67.1 °F2.08 in.
June47.6 °F73.1 °F1.64 in.
July52.0 °F83.9 °F0.6 in.
August51.0 °F84.4 °F0.69 in.
September43.5 °F74.6 °F0.89 in.
October35.5 °F59.4 °F1.99 in.
November29.6 °F44.4 °F3.13 in.
December24.6 °F35.6 °F3.55 in.
Annual36.6 °F58.9 °F24.05 in.

Climate Data for Harrison Idaho

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 11 - May 20
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 ConditionsSevere Drought
Köppen Climate ClassificationDsb - Humid Continental Climate - Dry Cool Summer
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