Grand View, ID frost dates
Last spring frostApr 28median date
First fall frostOct 6median date
Growing season161 daysfrost-free
Hardiness zone7aZone 7a
How Grand View compares
- In 8 years out of 10, the last spring frost in Grand View falls between April 12 and May 13, a 31-day window. The first fall frost falls between September 24 and October 22.
- The median last frost is 16 days earlier than the Idaho median of May 14.
- Its 161-day growing season is longer than 81% of the 244 Idaho places with a regular frost season (state median 138 days).
- The last frost is 12 days later than the zone 7a median of Apr 16. Hardiness zones measure winter cold, not season length, so use these dates rather than a zone 7a chart.
- The weather station records an average of 133 nights a year at or below 32°F.
- Compared with Boise, ID, 62 km away, the last frost here is 4 days later than there and the growing season is 19 days shorter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | April 12 |
| 50% (median) | April 28 |
| 10% (safe for tender plants) | May 13 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | September 24 |
| 50% (median) | October 6 |
| 90% (late) | October 22 |
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 View, ID
Grand View, ID frost dates — last frost Apr 28, first frost Oct 6, zone 7a. whenisthelastfrost.com
Crop
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Start indoors: Feb 3 to Feb 17Transplant outside: Mar 31 to Apr 14
Start indoors: Feb 17 to Mar 3Transplant outside: May 12 to May 26
Start indoors: Feb 17 to Mar 3Transplant outside: May 12 to May 26
Start indoors: Mar 3 to Mar 17Transplant outside: May 5 to May 19
Start indoors: Mar 3 to Mar 17Transplant outside: Apr 7 to Apr 21Sow outdoors: Mar 31 to May 5Plant for fall: Aug 11 to Sep 8
Start indoors: Mar 3 to Mar 17Transplant outside: Mar 31 to Apr 14Sow outdoors: Mar 31 to Apr 14Plant for fall: Jul 28 to Aug 18
Start indoors: Mar 3 to Mar 17Transplant outside: Apr 14 to Apr 28Plant for fall: Jun 30 to Jul 21
Start indoors: Mar 3 to Mar 17Transplant outside: Apr 7 to Apr 21Plant for fall: Jun 30 to Jul 21
Start indoors: Mar 3 to Mar 17Transplant outside: Apr 14 to Apr 28Plant for fall: Jun 30 to Jul 21
Start indoors: Mar 17 to Mar 31Transplant outside: May 19 to Jun 2Sow outdoors: May 19 to Jun 2
Start indoors: Mar 17 to Mar 31Transplant outside: May 5 to May 19
Sow outdoors: Mar 17 to Apr 7Plant for fall: Jul 14 to Aug 4
Sow outdoors: Mar 17 to Apr 7Plant for fall: Aug 11 to Sep 1
Sow outdoors: Mar 24 to May 5Plant for fall: Aug 25 to Sep 15
Start indoors: Mar 31 to Apr 7Transplant outside: May 12 to May 19Sow outdoors: May 5 to May 19Plant for fall: Jul 21 to Aug 4
Start indoors: Mar 31 to Apr 7Sow outdoors: May 5 to May 19Plant for fall: Jul 28 to Aug 11
Start indoors: Mar 31 to Apr 7Sow outdoors: May 5 to May 19
Start indoors: Mar 31 to Apr 7Transplant outside: May 12 to May 26
Sow outdoors: Apr 7 to May 5Plant for fall: Jul 14 to Jul 28
Sow outdoors: Apr 7 to May 5Plant for fall: Jul 28 to Aug 11
Sow outdoors: Apr 7 to Apr 28
Sow outdoors: Apr 14 to May 12Plant for fall: Jul 28 to Aug 11
Sow outdoors: Apr 14 to May 5Plant for fall: Aug 11 to Sep 1
Sow outdoors: May 5 to May 26Plant for fall: Jul 21 to Aug 4
Sow outdoors: May 5 to May 19
Transplant outside: May 12 to Jun 2
Plant for fall: Sep 22 to Oct 27
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Grand View, ID
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Feb 3 – Feb 17 | Mar 31 – Apr 14 | — | — |
| Peppers | Feb 17 – Mar 3 | May 12 – May 26 | — | — |
| Eggplant | Feb 17 – Mar 3 | May 12 – May 26 | — | — |
| Tomatoes | Mar 3 – Mar 17 | May 5 – May 19 | — | — |
| Lettuce | Mar 3 – Mar 17 | Apr 7 – Apr 21 | Mar 31 – May 5 | Aug 11 – Sep 8 |
| Kale | Mar 3 – Mar 17 | Mar 31 – Apr 14 | Mar 31 – Apr 14 | Jul 28 – Aug 18 |
| Broccoli | Mar 3 – Mar 17 | Apr 14 – Apr 28 | — | Jun 30 – Jul 21 |
| Cabbage | Mar 3 – Mar 17 | Apr 7 – Apr 21 | — | Jun 30 – Jul 21 |
| Cauliflower | Mar 3 – Mar 17 | Apr 14 – Apr 28 | — | Jun 30 – Jul 21 |
| Okra | Mar 17 – Mar 31 | May 19 – Jun 2 | May 19 – Jun 2 | — |
| Basil | Mar 17 – Mar 31 | May 5 – May 19 | — | — |
| Peas | — | — | Mar 17 – Apr 7 | Jul 14 – Aug 4 |
| Spinach | — | — | Mar 17 – Apr 7 | Aug 11 – Sep 1 |
| Radishes | — | — | Mar 24 – May 5 | Aug 25 – Sep 15 |
| Cucumbers | Mar 31 – Apr 7 | May 12 – May 19 | May 5 – May 19 | Jul 21 – Aug 4 |
| Zucchini & Summer Squash | Mar 31 – Apr 7 | — | May 5 – May 19 | Jul 28 – Aug 11 |
| Winter Squash & Pumpkins | Mar 31 – Apr 7 | — | May 5 – May 19 | — |
| Melons & Watermelon | Mar 31 – Apr 7 | May 12 – May 26 | — | — |
| Carrots | — | — | Apr 7 – May 5 | Jul 14 – Jul 28 |
| Beets | — | — | Apr 7 – May 5 | Jul 28 – Aug 11 |
| Potatoes | — | — | Apr 7 – Apr 28 | — |
| Swiss Chard | — | — | Apr 14 – May 12 | Jul 28 – Aug 11 |
| Cilantro | — | — | Apr 14 – May 5 | Aug 11 – Sep 1 |
| Green Beans | — | — | May 5 – May 26 | Jul 21 – Aug 4 |
| Sweet Corn | — | — | May 5 – May 19 | — |
| Sweet Potatoes | — | May 12 – Jun 2 | — | — |
| Garlic | — | — | — | Sep 22 – Oct 27 |
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 Grand View 4 Nw, ID weather station, 7 km away (elevation 2,402 ft (732 m)).
Frost dates near Grand View
- Mountain Home May 2 · Oct 8
- Bruneau Apr 17 · Oct 17
- Murphy May 31 · Oct 6
- Hammett May 1 · Oct 3
- Melba Apr 12 · Oct 26
- Kuna Apr 24 · Oct 21
- Boise Apr 24 · Oct 21
- Glenns Ferry May 1 · Oct 3
- King Hill May 1 · Oct 3
- Meridian Apr 29 · Oct 13
Frequently asked questions
When is the last frost in Grand View, ID?
The median last spring frost in Grand View, ID is April 28. There is still about a 10% chance of frost after May 13, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Grand View, ID?
The median first fall frost is October 6, with about a 10% chance of frost before September 24.
How long is the growing season in Grand View, ID?
About 161 days between the median last spring frost and first fall frost.
What planting zone is Grand View, ID?
Grand View, ID is in USDA hardiness zone 7a.