Cass Lake Minnesota Climate Data

Monthly Average Climate Data for Cass Lake Minnesota

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January-2.1 °F17.8 °F0.67 in.
February0.4 °F23.7 °F0.66 in.
March14.3 °F36.7 °F1.09 in.
April28.5 °F51.0 °F1.89 in.
May41.6 °F64.8 °F2.9 in.
June52.5 °F74.1 °F4.08 in.
July57.2 °F78.7 °F4.0 in.
August54.9 °F77.0 °F3.04 in.
September46.5 °F67.9 °F2.96 in.
October34.1 °F52.5 °F2.63 in.
November21.0 °F36.1 °F1.11 in.
December6.3 °F22.9 °F0.92 in.
Annual29.6 °F50.3 °F25.95 in.

Climate Data for Cass Lake Minnesota

Average First Frost DateSep. 21 - Sep. 30
Average Last Frost DateJun. 1 - Jun. 10
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 3b : -35°F to -30°F
Plant Hardiness Zone - 2012Zone 3a : -40°F to -35°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year