Rockville Minnesota Climate Data

Monthly Average Climate Data for Rockville Minnesota

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January3.3 °F21.0 °F0.64 in.
February6.6 °F25.8 °F0.77 in.
March19.4 °F38.6 °F1.44 in.
April32.8 °F54.1 °F2.55 in.
May45.8 °F67.4 °F3.78 in.
June56.4 °F77.0 °F4.43 in.
July60.5 °F81.2 °F3.95 in.
August57.8 °F79.1 °F4.02 in.
September49.5 °F71.5 °F2.95 in.
October36.9 °F56.9 °F2.63 in.
November23.7 °F40.1 °F1.31 in.
December10.8 °F26.3 °F0.89 in.
Annual33.6 °F53.3 °F29.36 in.

Climate Data for Rockville Minnesota

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 21 - May 31
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 4b : -25°F to -20°F
Plant Hardiness Zone - 2012Zone 4a : -30°F to -25°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year