Last Frost Date

Planting planner: Fairbanks, Alaska

Typical last spring frost May 13 (1 spring in 10 later than May 26). Typical first fall frost September 13 (1 fall in 10 earlier than August 29). Growing season about 121 days.

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Frost likely Frost possible Frost unlikely Frost is likely until May 2 and fades out by May 26. It is unlikely from then until August 29, and likely again after September 24. The dashed lines are the typical dates, May 13 and September 13.

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 25 to March 25: Broccoli and cabbage (start seeds indoors)

March

  • March 11 to April 8: Cauliflower (start seeds indoors)
  • March 25 to April 15: Eggplant (start seeds indoors)

April

  • April 1 to 15: Peppers (start seeds indoors)
  • April 8 to 22: Tomatoes (start seeds indoors)
  • April 15 to 29: Peas, spinach, lettuce, radishes, onion sets, turnips (sow outdoors)
  • April 15 to 29: Broccoli and cabbage (plant out)
  • April 29 to May 13: Beets, carrots, potatoes, Swiss chard (plant outdoors)
  • April 29 to May 13: Cauliflower (plant out)

May

  • May 13: Snap beans, sweet corn, cucumbers, summer squash (sow outdoors)
  • May 27: Tomatoes, peppers, eggplant (plant out)
  • May 27: Melons, winter squash, pumpkins, lima beans (sow outdoors)

June

  • June 17: Snap beans for fall (last date to sow)
  • June 21: Carrots for fall (last date to sow)
  • June 22: Cucumbers for fall (last date to sow)
  • June 26: Peas for fall (last date to sow)
  • June 27: Summer squash for fall (last date to sow)

July

  • July 1: Leaf lettuce and beets for fall (last date to sow)
  • July 11: Turnips and kohlrabi for fall (last date to sow)
  • July 21: Spinach for fall (last date to sow)
  • July 31: Radishes for fall (last date to sow)

August

  • August 29: Tomatoes, peppers, squash, melons, cucumbers (watch the forecast)

September

  • September 30 to October 7: Garlic (plant cloves)

October

Nothing to start this month.

November

Nothing to start this month.

December

Nothing to start this month.

Dates from NOAA's 1991 to 2020 climate normals for Fairbanks International Airport (station USW00026411), 7 miles from the center of Fairbanks. 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/alaska/fairbanks/

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