Portland North Dakota Climate Data

Monthly Average Climate Data for Portland North Dakota

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January-2.0 °F15.6 °F0.58 in.
February1.7 °F20.8 °F0.52 in.
March15.2 °F33.4 °F0.95 in.
April30.0 °F51.7 °F1.2 in.
May42.9 °F66.1 °F2.86 in.
June54.6 °F75.8 °F4.22 in.
July58.1 °F80.3 °F3.93 in.
August55.1 °F79.2 °F2.86 in.
September46.1 °F70.8 °F2.44 in.
October33.7 °F54.9 °F1.96 in.
November19.2 °F36.7 °F0.83 in.
December5.8 °F21.7 °F0.79 in.
Annual30 °F50.6 °F23.14 in.

Climate Data for Portland North Dakota

Average First Frost DateSep. 21 - Sep. 30
Average Last Frost DateJun. 1 - Jun. 10
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 4a : -30°F to -25°F
Plant Hardiness Zone - 2012Zone 4a : -30°F to -25°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
2024 plantmaps.com