Glen Ullin North Dakota Climate Data

Monthly Average Climate Data for Glen Ullin North Dakota

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January3.3 °F23.6 °F0.33 in.
February6.8 °F28.1 °F0.45 in.
March17.5 °F40.4 °F0.63 in.
April28.3 °F54.3 °F1.34 in.
May40.2 °F66.2 °F2.46 in.
June50.5 °F75.0 °F3.6 in.
July56.2 °F83.2 °F2.88 in.
August53.1 °F82.8 °F2.0 in.
September43.7 °F72.9 °F1.8 in.
October31.1 °F56.7 °F1.42 in.
November18.1 °F40.4 °F0.57 in.
December7.9 °F28.0 °F0.48 in.
Annual29.7 °F54.3 °F17.96 in.

Climate Data for Glen Ullin North Dakota

Average First Frost DateSep. 21 - Sep. 30
Average Last Frost DateJun. 1 - Jun. 10
Average Days With FrostOver 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 ClassificationDwb - Humid Continental Mild Summer With Dry Winters