Grand Junction, TN frost dates
How Grand Junction compares
- In 8 years out of 10, the last spring frost in Grand Junction falls between March 12 and April 17, a 36-day window. The first fall frost falls between October 21 and November 19.
- The median last frost is 6 days earlier than the Tennessee median of Apr 7.
- Its 216-day growing season is longer than 84% of the 548 Tennessee places with a regular frost season (state median 206 days).
- The last frost is 4 days earlier than the zone 7b median of Apr 5. Hardiness zones measure winter cold, not season length, so use these dates rather than a zone 7b chart.
- The weather station records an average of 74 nights a year at or below 32°F.
- Compared with Cordova, TN, 55 km away, the last frost here is 3 days later than there and the growing season is 5 days shorter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | March 12 |
| 50% (median) | April 1 |
| 10% (safe for tender plants) | April 17 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | October 21 |
| 50% (median) | November 3 |
| 90% (late) | November 19 |
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 Grand Junction, TN
Grand Junction, TN frost dates — last frost Apr 1, first frost Nov 3, zone 7b. whenisthelastfrost.com
When to plant vegetables in Grand Junction, TN
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Jan 7 – Jan 21 | Mar 4 – Mar 18 | — | — |
| Peppers | Jan 21 – Feb 4 | Apr 15 – Apr 29 | — | — |
| Eggplant | Jan 21 – Feb 4 | Apr 15 – Apr 29 | — | — |
| Tomatoes | Feb 4 – Feb 18 | Apr 8 – Apr 22 | — | — |
| Lettuce | Feb 4 – Feb 18 | Mar 11 – Mar 25 | Mar 4 – Apr 8 | Sep 8 – Oct 6 |
| Kale | Feb 4 – Feb 18 | Mar 4 – Mar 18 | Mar 4 – Mar 18 | Aug 25 – Sep 15 |
| Broccoli | Feb 4 – Feb 18 | Mar 18 – Apr 1 | — | Jul 28 – Aug 18 |
| Cabbage | Feb 4 – Feb 18 | Mar 11 – Mar 25 | — | Jul 28 – Aug 18 |
| Cauliflower | Feb 4 – Feb 18 | Mar 18 – Apr 1 | — | Jul 28 – Aug 18 |
| Okra | Feb 18 – Mar 4 | Apr 22 – May 6 | Apr 22 – May 6 | — |
| Basil | Feb 18 – Mar 4 | Apr 8 – Apr 22 | — | — |
| Peas | — | — | Feb 18 – Mar 11 | Aug 11 – Sep 1 |
| Spinach | — | — | Feb 18 – Mar 11 | Sep 8 – Sep 29 |
| Radishes | — | — | Feb 25 – Apr 8 | Sep 22 – Oct 13 |
| Cucumbers | Mar 4 – Mar 11 | Apr 15 – Apr 22 | Apr 8 – Apr 22 | Aug 18 – Sep 1 |
| Zucchini & Summer Squash | Mar 4 – Mar 11 | — | Apr 8 – Apr 22 | Aug 25 – Sep 8 |
| Winter Squash & Pumpkins | Mar 4 – Mar 11 | — | Apr 8 – Apr 22 | — |
| Melons & Watermelon | Mar 4 – Mar 11 | Apr 15 – Apr 29 | — | — |
| Carrots | — | — | Mar 11 – Apr 8 | Aug 11 – Aug 25 |
| Beets | — | — | Mar 11 – Apr 8 | Aug 25 – Sep 8 |
| Potatoes | — | — | Mar 11 – Apr 1 | — |
| Swiss Chard | — | — | Mar 18 – Apr 15 | Aug 25 – Sep 8 |
| Cilantro | — | — | Mar 18 – Apr 8 | Sep 8 – Sep 29 |
| Green Beans | — | — | Apr 8 – Apr 29 | Aug 18 – Sep 1 |
| Sweet Corn | — | — | Apr 8 – Apr 22 | — |
| Sweet Potatoes | — | Apr 15 – May 6 | — | — |
| Garlic | — | — | — | Oct 20 – Nov 24 |
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 Ames Plantation, TN weather station, 7 km away (elevation 459 ft (140 m)).
Frost dates near Grand Junction
- La Grange Apr 1 · Nov 3
- Saulsbury Apr 1 · Nov 3
- Hickory Valley Apr 1 · Nov 3
- Moscow Mar 29 · Nov 3
- Williston Mar 29 · Nov 3
- Middleton Apr 3 · Oct 30
- Laconia Apr 1 · Nov 3
- Bolivar Apr 3 · Oct 30
- Macon Mar 29 · Nov 3
- Whiteville Apr 3 · Oct 30
Frequently asked questions
When is the last frost in Grand Junction, TN?
The median last spring frost in Grand Junction, TN is April 1. There is still about a 10% chance of frost after April 17, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Grand Junction, TN?
The median first fall frost is November 3, with about a 10% chance of frost before October 21.
How long is the growing season in Grand Junction, TN?
About 216 days between the median last spring frost and first fall frost.
What planting zone is Grand Junction, TN?
Grand Junction, TN is in USDA hardiness zone 7b.