Melrude, MN frost dates
Last spring frostMay 27median date
First fall frostSep 20median date
Growing season116 daysfrost-free
Hardiness zone3bZone 3b
How Melrude compares
- In 8 years out of 10, the last spring frost in Melrude falls between May 9 and June 11, a 33-day window. The first fall frost falls between September 4 and October 3.
- The median last frost is 22 days later than the Minnesota median of May 5.
- Its 116-day growing season is longer than 3% of the 801 Minnesota places with a regular frost season (state median 151 days).
- The last frost is 10 days later than the zone 3b median of May 17. Hardiness zones measure winter cold, not season length, so use these dates rather than a zone 3b chart.
- The weather station records an average of 207 nights a year at or below 32°F.
- Compared with Duluth, MN, 56 km away, the last frost here is 13 days later than there and the growing season is 35 days shorter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | May 9 |
| 50% (median) | May 27 |
| 10% (safe for tender plants) | June 11 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | September 4 |
| 50% (median) | September 20 |
| 90% (late) | October 3 |
Frost here means 32°F (0°C). A median date means half of years have their last frost earlier and half later.
Planting calendar for Melrude, MN
Melrude, MN frost dates — last frost May 27, first frost Sep 20, zone 3b. whenisthelastfrost.com
Crop
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Start indoors: Mar 4 to Mar 18Transplant outside: Apr 29 to May 13
Start indoors: Mar 18 to Apr 1Transplant outside: Jun 10 to Jun 24
Start indoors: Mar 18 to Apr 1Transplant outside: Jun 10 to Jun 24
Start indoors: Apr 1 to Apr 15Transplant outside: Jun 3 to Jun 17
Start indoors: Apr 1 to Apr 15Transplant outside: May 6 to May 20Sow outdoors: Apr 29 to Jun 3Plant for fall: Jul 26 to Aug 23
Start indoors: Apr 1 to Apr 15Transplant outside: Apr 29 to May 13Sow outdoors: Apr 29 to May 13Plant for fall: Jul 12 to Aug 2
Start indoors: Apr 1 to Apr 15Transplant outside: May 13 to May 27Plant for fall: Jun 14 to Jul 5
Start indoors: Apr 1 to Apr 15Transplant outside: May 6 to May 20Plant for fall: Jun 14 to Jul 5
Start indoors: Apr 1 to Apr 15Transplant outside: May 13 to May 27Plant for fall: Jun 14 to Jul 5
Start indoors: Apr 15 to Apr 29Transplant outside: Jun 17 to Jul 1Sow outdoors: Jun 17 to Jul 1
Start indoors: Apr 15 to Apr 29Transplant outside: Jun 3 to Jun 17
Sow outdoors: Apr 15 to May 6Plant for fall: Jun 28 to Jul 19
Sow outdoors: Apr 15 to May 6Plant for fall: Jul 26 to Aug 16
Sow outdoors: Apr 22 to Jun 3Plant for fall: Aug 9 to Aug 30
Start indoors: Apr 29 to May 6Transplant outside: Jun 10 to Jun 17Sow outdoors: Jun 3 to Jun 17Plant for fall: Jul 5 to Jul 19
Start indoors: Apr 29 to May 6Sow outdoors: Jun 3 to Jun 17Plant for fall: Jul 12 to Jul 26
Start indoors: Apr 29 to May 6Sow outdoors: Jun 3 to Jun 17
Start indoors: Apr 29 to May 6Transplant outside: Jun 10 to Jun 24
Sow outdoors: May 6 to Jun 3Plant for fall: Jun 28 to Jul 12
Sow outdoors: May 6 to Jun 3Plant for fall: Jul 12 to Jul 26
Sow outdoors: May 6 to May 27
Sow outdoors: May 13 to Jun 10Plant for fall: Jul 12 to Jul 26
Sow outdoors: May 13 to Jun 3Plant for fall: Jul 26 to Aug 16
Sow outdoors: Jun 3 to Jun 24
Sow outdoors: Jun 3 to Jun 17
Transplant outside: Jun 10 to Jul 1
Plant for fall: Sep 6 to Oct 11
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Melrude, MN
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Mar 4 – Mar 18 | Apr 29 – May 13 | — | — |
| Peppers | Mar 18 – Apr 1 | Jun 10 – Jun 24 | — | — |
| Eggplant | Mar 18 – Apr 1 | Jun 10 – Jun 24 | — | — |
| Tomatoes | Apr 1 – Apr 15 | Jun 3 – Jun 17 | — | — |
| Lettuce | Apr 1 – Apr 15 | May 6 – May 20 | Apr 29 – Jun 3 | Jul 26 – Aug 23 |
| Kale | Apr 1 – Apr 15 | Apr 29 – May 13 | Apr 29 – May 13 | Jul 12 – Aug 2 |
| Broccoli | Apr 1 – Apr 15 | May 13 – May 27 | — | Jun 14 – Jul 5 |
| Cabbage | Apr 1 – Apr 15 | May 6 – May 20 | — | Jun 14 – Jul 5 |
| Cauliflower | Apr 1 – Apr 15 | May 13 – May 27 | — | Jun 14 – Jul 5 |
| Okra | Apr 15 – Apr 29 | Jun 17 – Jul 1 | Jun 17 – Jul 1 | — |
| Basil | Apr 15 – Apr 29 | Jun 3 – Jun 17 | — | — |
| Peas | — | — | Apr 15 – May 6 | Jun 28 – Jul 19 |
| Spinach | — | — | Apr 15 – May 6 | Jul 26 – Aug 16 |
| Radishes | — | — | Apr 22 – Jun 3 | Aug 9 – Aug 30 |
| Cucumbers | Apr 29 – May 6 | Jun 10 – Jun 17 | Jun 3 – Jun 17 | Jul 5 – Jul 19 |
| Zucchini & Summer Squash | Apr 29 – May 6 | — | Jun 3 – Jun 17 | Jul 12 – Jul 26 |
| Winter Squash & Pumpkins | Apr 29 – May 6 | — | Jun 3 – Jun 17 | — |
| Melons & Watermelon | Apr 29 – May 6 | Jun 10 – Jun 24 | — | — |
| Carrots | — | — | May 6 – Jun 3 | Jun 28 – Jul 12 |
| Beets | — | — | May 6 – Jun 3 | Jul 12 – Jul 26 |
| Potatoes | — | — | May 6 – May 27 | — |
| Swiss Chard | — | — | May 13 – Jun 10 | Jul 12 – Jul 26 |
| Cilantro | — | — | May 13 – Jun 3 | Jul 26 – Aug 16 |
| Green Beans | — | — | Jun 3 – Jun 24 | — |
| Sweet Corn | — | — | Jun 3 – Jun 17 | — |
| Sweet Potatoes | — | Jun 10 – Jul 1 | — | — |
| Garlic | — | — | — | Sep 6 – Oct 11 |
Dates come from the median frost dates and common extension-service timing. Adjust for your soil temperature, microclimate and the varieties you grow.
About these dates
Based on 1991–2020 NOAA climate normals for the Cotton, MN weather station, 10 km away (elevation 1,322 ft (403 m)).
Frost dates near Melrude
- Cotton May 27 · Sep 20
- Makinen May 12 · Oct 1
- Canyon May 27 · Sep 20
- Forbes Jun 5 · Sep 8
- Iron May 12 · Oct 1
- Eveleth May 12 · Oct 1
- Gilbert May 12 · Oct 1
- Aurora frost any month
- Biwabik frost any month
- Alborn May 27 · Sep 20
Frequently asked questions
When is the last frost in Melrude, MN?
The median last spring frost in Melrude, MN is May 27. There is still about a 10% chance of frost after June 11, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Melrude, MN?
The median first fall frost is September 20, with about a 10% chance of frost before September 4.
How long is the growing season in Melrude, MN?
About 116 days between the median last spring frost and first fall frost.
What planting zone is Melrude, MN?
Melrude, MN is in USDA hardiness zone 3b.