Ortley South Dakota Climate Data

Monthly Average Climate Data for Ortley South Dakota

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-16.4 °C-6.3 °C17.02 mm
February-14.4 °C-3.7 °C17.02 mm
March-7.8 °C3.1 °C27.43 mm
April-0.4 °C11.9 °C58.42 mm
May6.9 °C19.2 °C75.95 mm
June13 °C24.6 °C98.81 mm
July15.6 °C27.3 °C100.58 mm
August14.4 °C26.6 °C67.56 mm
September9.6 °C22.2 °C64.01 mm
October2 °C13.8 °C59.44 mm
November-5.7 °C4.3 °C21.08 mm
December-12.6 °C-3.3 °C19.05 mm
Annual0.4 °C11.6 °C626.37 mm

Climate Data for Ortley South Dakota

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 : -31.7°C to -28.9°C
Plant Hardiness Zone - 2012Zone 4a : -34.4°C to -31.7°C
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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