Republic, MI frost dates

Gardening where frost is possible all year

The weather station nearest Republic, MI 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 Champion Van Riper Pk, MI weather station, 17 km away (elevation 1,598 ft (487 m)).

Frost dates near Republic

• Champion Jun 5 · Sep 10
• Michigamme frost any month
• Ishpeming May 26 · Sep 25
• Channing May 24 · Sep 25
• Sagola May 24 · Sep 25
• Ralph May 13 · Oct 2
• Palmer May 22 · Sep 29
• Negaunee May 22 · Sep 29
• Amasa Jun 6 · Sep 9
• National Mine May 22 · Sep 29

Frequently asked questions

When is the last frost in Republic, MI?

Republic, MI can freeze in any month, so there is no reliable last frost date. The nearest NOAA station averages 218 nights a year at or below 32°F.

What can I grow in Republic, MI?

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.