Astoria South Dakota Climate Data

Monthly Average Climate Data for Astoria South Dakota

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January3.6 °F21.3 °F0.67 in.
February7.7 °F25.8 °F0.63 in.
March19.6 °F37.9 °F1.38 in.
April31.9 °F53.2 °F2.6 in.
May44.9 °F66.2 °F3.71 in.
June55.5 °F75.9 °F4.75 in.
July60.0 °F81.0 °F3.51 in.
August57.9 °F78.9 °F3.24 in.
September49.1 °F71.4 °F3.16 in.
October35.5 °F57.1 °F2.19 in.
November22.2 °F40.4 °F1.06 in.
December10.1 °F26.5 °F0.8 in.
Annual33.2 °F53 °F27.7 in.

Climate Data for Astoria South Dakota

Average First Frost DateSep. 21 - Sep. 30
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 4b : -25°F to -20°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year