Portal North Dakota Climate Data

Monthly Average Climate Data for Portal North Dakota

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-18.9 °C-8.5 °C17.78 mm
February-16.9 °C-5.9 °C14.22 mm
March-10.2 °C0.7 °C19.05 mm
April-2.6 °C10.7 °C24.89 mm
May4.2 °C17.9 °C57.91 mm
June10.3 °C22.7 °C92.46 mm
July12.5 °C25.9 °C67.06 mm
August11.1 °C26.2 °C42.16 mm
September5.9 °C20.6 °C36.58 mm
October-1.1 °C11.6 °C35.31 mm
November-8.7 °C1.4 °C19.56 mm
December-15.6 °C-5.8 °C18.29 mm
Annual-2.5 °C9.8 °C445.27 mm

Climate Data for Portal 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 3b : -37.2°C to -34.4°C
Plant Hardiness Zone - 2012Zone 3b : -37.2°C to -34.4°C
Current Drought ConditionsSevere Drought
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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