Peck, ID frost dates
How Peck compares
- In 8 years out of 10, the last spring frost in Peck falls between April 1 and May 5, a 34-day window. The first fall frost falls between September 30 and November 7.
- The median last frost is 24 days earlier than the Idaho median of May 14.
- Its 183-day growing season is longer than 96% of the 244 Idaho places with a regular frost season (state median 138 days).
- The last frost is 4 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 101 nights a year at or below 32°F.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | April 1 |
| 50% (median) | April 20 |
| 10% (safe for tender plants) | May 5 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | September 30 |
| 50% (median) | October 20 |
| 90% (late) | November 7 |
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 Peck, ID
Peck, ID frost dates — last frost Apr 20, first frost Oct 20, zone 7a. whenisthelastfrost.com
When to plant vegetables in Peck, ID
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Jan 26 – Feb 9 | Mar 23 – Apr 6 | — | — |
| Peppers | Feb 9 – Feb 23 | May 4 – May 18 | — | — |
| Eggplant | Feb 9 – Feb 23 | May 4 – May 18 | — | — |
| Tomatoes | Feb 23 – Mar 9 | Apr 27 – May 11 | — | — |
| Lettuce | Feb 23 – Mar 9 | Mar 30 – Apr 13 | Mar 23 – Apr 27 | Aug 25 – Sep 22 |
| Kale | Feb 23 – Mar 9 | Mar 23 – Apr 6 | Mar 23 – Apr 6 | Aug 11 – Sep 1 |
| Broccoli | Feb 23 – Mar 9 | Apr 6 – Apr 20 | — | Jul 14 – Aug 4 |
| Cabbage | Feb 23 – Mar 9 | Mar 30 – Apr 13 | — | Jul 14 – Aug 4 |
| Cauliflower | Feb 23 – Mar 9 | Apr 6 – Apr 20 | — | Jul 14 – Aug 4 |
| Okra | Mar 9 – Mar 23 | May 11 – May 25 | May 11 – May 25 | — |
| Basil | Mar 9 – Mar 23 | Apr 27 – May 11 | — | — |
| Peas | — | — | Mar 9 – Mar 30 | Jul 28 – Aug 18 |
| Spinach | — | — | Mar 9 – Mar 30 | Aug 25 – Sep 15 |
| Radishes | — | — | Mar 16 – Apr 27 | Sep 8 – Sep 29 |
| Cucumbers | Mar 23 – Mar 30 | May 4 – May 11 | Apr 27 – May 11 | Aug 4 – Aug 18 |
| Zucchini & Summer Squash | Mar 23 – Mar 30 | — | Apr 27 – May 11 | Aug 11 – Aug 25 |
| Winter Squash & Pumpkins | Mar 23 – Mar 30 | — | Apr 27 – May 11 | — |
| Melons & Watermelon | Mar 23 – Mar 30 | May 4 – May 18 | — | — |
| Carrots | — | — | Mar 30 – Apr 27 | Jul 28 – Aug 11 |
| Beets | — | — | Mar 30 – Apr 27 | Aug 11 – Aug 25 |
| Potatoes | — | — | Mar 30 – Apr 20 | — |
| Swiss Chard | — | — | Apr 6 – May 4 | Aug 11 – Aug 25 |
| Cilantro | — | — | Apr 6 – Apr 27 | Aug 25 – Sep 15 |
| Green Beans | — | — | Apr 27 – May 18 | Aug 4 – Aug 18 |
| Sweet Corn | — | — | Apr 27 – May 11 | — |
| Sweet Potatoes | — | May 4 – May 25 | — | — |
| Garlic | — | — | — | Oct 6 – Nov 10 |
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 Dworshak Fish Hatchery, ID weather station, 7 km away (elevation 994 ft (303 m)).
Frost dates near Peck
- Ahsahka Apr 20 · Oct 20
- Lenore Apr 20 · Oct 20
- Orofino Apr 20 · Oct 20
- Reubens May 23 · Sep 25
- Culdesac May 23 · Sep 25
- Kendrick Apr 20 · Oct 20
- Juliaetta frost any month
- Craigmont May 23 · Sep 25
- Nezperce May 24 · Sep 20
- Lapwai Apr 6 · Oct 26
Frequently asked questions
When is the last frost in Peck, ID?
The median last spring frost in Peck, ID is April 20. There is still about a 10% chance of frost after May 5, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Peck, ID?
The median first fall frost is October 20, with about a 10% chance of frost before September 30.
How long is the growing season in Peck, ID?
About 183 days between the median last spring frost and first fall frost.
What planting zone is Peck, ID?
Peck, ID is in USDA hardiness zone 7a.