Rathdrum Idaho Climate Data

Monthly Average Climate Data for Rathdrum Idaho

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January24.5 °F35.7 °F3.35 in.
February24.5 °F40.0 °F2.12 in.
March28.9 °F48.3 °F2.61 in.
April34.0 °F56.5 °F2.07 in.
May41.4 °F66.4 °F2.11 in.
June47.1 °F72.4 °F2.0 in.
July51.9 °F83.2 °F0.69 in.
August51.3 °F83.8 °F0.73 in.
September43.9 °F73.7 °F0.88 in.
October35.6 °F58.2 °F2.18 in.
November29.5 °F43.6 °F3.2 in.
December24.2 °F35.0 °F3.7 in.
Annual36.4 °F58.1 °F25.64 in.

Climate Data for Rathdrum 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 6b : -5°F to 0°F
Plant Hardiness Zone - 2012Zone 6b : -5°F to 0°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDsb - Humid Continental Climate - Dry Cool Summer
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