Fairfield Idaho Climate Data

Monthly Average Climate Data for Fairfield Idaho

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-13.4 °C-0.9 °C48.26 mm
February-12 °C1.3 °C29.97 mm
March-6.7 °C6.2 °C32.51 mm
April-1.9 °C12.5 °C27.18 mm
May2 °C18.1 °C42.42 mm
June4.8 °C22.9 °C20.07 mm
July8.4 °C29.4 °C4.83 mm
August7.4 °C28.9 °C5.08 mm
September3.1 °C23.7 °C11.18 mm
October-2.1 °C15.8 °C24.38 mm
November-7.2 °C6.4 °C33.78 mm
December-12.6 °C-0.7 °C55.63 mm
Annual-2.5 °C13.6 °C335.29 mm

Climate Data for Fairfield Idaho

Average First Frost DateAug. 21 - Aug. 31
Average Last Frost DateJun. 11 - Jun. 20
Average Days With FrostOver 180 Days
Plant Hardiness Zone - 2023Zone 5a : -28.9°C to -26.1°C
Plant Hardiness Zone - 2012Zone 4b : -31.7°C to -28.9°C
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationDsb - Humid Continental Climate - Dry Cool Summer
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