Last Frost Date

Planting planner: Aberdeen, South Dakota

Typical last spring frost May 9 (1 spring in 10 later than May 22). Typical first fall frost September 26 (1 fall in 10 earlier than September 14). Growing season about 139 days.

Or use your browser's Print command.

Frost likely Frost possible Frost unlikely Frost is likely until April 27 and fades out by May 22. It is unlikely from then until September 14, and likely again after October 7. The dashed lines are the typical dates, May 9 and September 26.

Your season is too short for a separate fall planting of cabbage and broccoli: sown late enough to be a fall crop, it wouldn't be ready before the typical first frost. Your spring planting is your harvest.

January

Nothing to start this month.

February

  • February 21 to March 21: Broccoli and cabbage (start seeds indoors)

March

  • March 7 to April 4: Cauliflower (start seeds indoors)
  • March 21 to April 11: Eggplant (start seeds indoors)
  • March 28 to April 11: Peppers (start seeds indoors)

April

  • April 4 to 18: Tomatoes (start seeds indoors)
  • April 11 to 25: Peas, spinach, lettuce, radishes, onion sets, turnips (sow outdoors)
  • April 11 to 25: Broccoli and cabbage (plant out)
  • April 25 to May 9: Beets, carrots, potatoes, Swiss chard (plant outdoors)
  • April 25 to May 9: Cauliflower (plant out)

May

  • May 9: Snap beans, sweet corn, cucumbers, summer squash (sow outdoors)
  • May 23: Tomatoes, peppers, eggplant (plant out)
  • May 23: Melons, winter squash, pumpkins, lima beans (sow outdoors)

June

  • June 30: Snap beans for fall (last date to sow)

July

  • July 4: Carrots for fall (last date to sow)
  • July 5: Cucumbers for fall (last date to sow)
  • July 9: Peas for fall (last date to sow)
  • July 10: Summer squash for fall (last date to sow)
  • July 14: Leaf lettuce and beets for fall (last date to sow)
  • July 24: Turnips and kohlrabi for fall (last date to sow)

August

  • August 3: Spinach for fall (last date to sow)
  • August 13: Radishes for fall (last date to sow)

September

  • September 14: Tomatoes, peppers, squash, melons, cucumbers (watch the forecast)

October

  • October 11 to 18: Garlic (plant cloves)

November

Nothing to start this month.

December

Nothing to start this month.

Dates from NOAA's 1991 to 2020 climate normals for Aberdeen (station USW00014929), 3 miles from the center of Aberdeen. Planting rules: Colorado State University Extension GardenNotes #720 (spring), Virginia Cooperative Extension 426-334 (fall crops), University of Minnesota Extension (garlic). Spring bulbs: plant when the soil has cooled to about 50 to 55°F, until a couple of weeks before the ground freezes (University of Wisconsin–Madison Extension). Full details: https://lastfrostdate.com/frost-dates/south-dakota/aberdeen/

Back to frost dates for Aberdeen