Eureka Montana Climate Data

Monthly Average Climate Data for Eureka Montana

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-7.9 °C-0.3 °C26.67 mm
February-7.3 °C3.2 °C20.07 mm
March-3.9 °C8.6 °C23.62 mm
April-0.7 °C14.1 °C27.18 mm
May3.6 °C19.9 °C45.72 mm
June7.3 °C23.4 °C65.28 mm
July9.8 °C29.3 °C31.75 mm
August8.8 °C29.3 °C25.15 mm
September4.6 °C23 °C32 mm
October0.1 °C13.7 °C32.51 mm
November-3.4 °C4.6 °C33.78 mm
December-7.3 °C-0.7 °C30.23 mm
Annual0.3 °C14 °C393.96 mm

Climate Data for Eureka Montana

Average First Frost DateSep.11 - Sep. 20
Average Last Frost DateJun. 1 - Jun. 10
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 5b : -26.1°C to -23.3°C
Plant Hardiness Zone - 2012Zone 5a : -28.9°C to -26.1°C
Current Drought ConditionsSevere Drought
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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