Cromwell Minnesota Climate Data

Monthly Average Climate Data for Cromwell Minnesota

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January-0.2 °F18.9 °F0.79 in.
February2.9 °F24.8 °F0.79 in.
March15.3 °F37.0 °F1.29 in.
April28.4 °F50.2 °F2.34 in.
May40.1 °F64.0 °F3.49 in.
June49.9 °F73.0 °F4.54 in.
July55.0 °F77.7 °F4.48 in.
August53.3 °F76.0 °F3.79 in.
September45.6 °F67.9 °F3.31 in.
October34.3 °F53.1 °F3.04 in.
November21.5 °F37.1 °F1.48 in.
December8.0 °F24.0 °F1.14 in.
Annual29.5 °F50.3 °F30.48 in.

Climate Data for Cromwell Minnesota

Average First Frost DateSep.11 - Sep. 20
Average Last Frost DateJun. 11 - Jun. 20
Average Days With FrostOver 180 Days
Plant Hardiness Zone - 2023Zone 4a : -30°F to -25°F
Plant Hardiness Zone - 2012Zone 3b : -35°F to -30°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year