Dubois, WY frost dates

Gardening where frost is possible all year

The weather station nearest Dubois, WY records freezing temperatures in every month often enough that NOAA cannot define a frost-free season. Gardening is still possible — it just means planning for frost at any time:

• Grow fast, cold-tolerant crops: Radishes, Lettuce, Spinach, Kale, Peas, Potatoes, Swiss Chard, Garlic.
• Plant once the soil can be worked — usually late spring to early summer at high elevation — and keep row covers ready for clear, still nights.
• Use season extension: cold frames, low tunnels, wall-of-water cloches or a greenhouse turn a few frost-free weeks into a real season.
• Frost-tender crops (tomatoes, squash, beans) need protection all season; choose the earliest varieties you can find.

About these dates

Based on 1991–2020 NOAA climate normals for the Dubois, WY weather station, about 1 km away (elevation 6,955 ft (2,120 m)).

Frost dates near Dubois

• Crowheart Jun 1 · Sep 14
• Cora frost any month
• Kinnear May 21 · Sep 20
• Bondurant frost any month
• Kelly Jun 24 · Aug 28
• Pinedale frost any month
• Pavillion May 14 · Sep 30
• Daniel frost any month
• Moran frost any month
• Fort Washakie May 18 · Sep 27

Frequently asked questions

When is the last frost in Dubois, WY?

Dubois, WY can freeze in any month, so there is no reliable last frost date. The nearest NOAA station averages 224 nights a year at or below 32°F.

What can I grow in Dubois, WY?

Fast, cold-tolerant crops such as radishes, lettuce, spinach, kale, peas and potatoes, ideally under row covers, cold frames or a greenhouse. Frost-tender crops like tomatoes need protection all season.