Portland North Dakota Climate Data

Monthly Average Climate Data for Portland North Dakota

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-18.9 °C-9.1 °C14.73 mm
February-16.8 °C-6.2 °C13.21 mm
March-9.3 °C0.8 °C24.13 mm
April-1.1 °C10.9 °C30.48 mm
May6.1 °C18.9 °C72.64 mm
June12.6 °C24.3 °C107.19 mm
July14.5 °C26.8 °C99.82 mm
August12.8 °C26.2 °C72.64 mm
September7.8 °C21.6 °C61.98 mm
October0.9 °C12.7 °C49.78 mm
November-7.1 °C2.6 °C21.08 mm
December-14.6 °C-5.7 °C20.07 mm
Annual-1.1 °C10.3 °C587.75 mm

Climate Data for Portland North Dakota

Average First Frost DateSep. 21 - Sep. 30
Average Last Frost DateMay 21 - May 31
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 4a : -34.4°C to -31.7°C
Plant Hardiness Zone - 2012Zone 4a : -34.4°C to -31.7°C
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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