Lyons South Dakota Climate Data

Monthly Average Climate Data for Lyons South Dakota

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January6.0 °F24.2 °F0.57 in.
February10.1 °F29.0 °F0.82 in.
March21.5 °F41.4 °F1.38 in.
April33.5 °F55.8 °F3.03 in.
May46.3 °F68.1 °F3.65 in.
June57.6 °F78.4 °F4.04 in.
July61.5 °F82.9 °F3.3 in.
August58.8 °F80.2 °F3.43 in.
September49.7 °F73.3 °F2.87 in.
October36.2 °F59.5 °F2.09 in.
November22.5 °F42.8 °F1.05 in.
December11.6 °F29.0 °F0.84 in.
Annual34.6 °F55.4 °F27.07 in.

Climate Data for Lyons 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 5a : -20°F to -15°F
Plant Hardiness Zone - 2012Zone 4b : -25°F to -20°F
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation