Winchester Idaho Climate Data

Monthly Average Climate Data for Winchester Idaho

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January23.1 °F36.4 °F2.25 in.
February23.9 °F39.5 °F1.52 in.
March27.4 °F45.4 °F2.94 in.
April32.3 °F52.3 °F3.07 in.
May38.5 °F61.0 °F2.87 in.
June43.9 °F67.5 °F2.38 in.
July50.1 °F79.1 °F0.93 in.
August50.0 °F80.0 °F0.8 in.
September42.9 °F70.6 °F1.0 in.
October35.3 °F56.7 °F1.76 in.
November27.5 °F43.0 °F2.42 in.
December22.2 °F35.4 °F2.25 in.
Annual34.8 °F55.6 °F24.19 in.

Climate Data for Winchester Idaho

Average First Frost DateSep. 21 - Sep. 30
Average Last Frost DateJun. 1 - Jun. 10
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 6b : -5°F to 0°F
Plant Hardiness Zone - 2012Zone 6a : -10°F to -5°F
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationCfa - Humid Subtropical Climate
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