Nordman, ID frost dates
Last spring frostMay 20median date
First fall frostSep 13median date
Growing season116 daysfrost-free
Hardiness zone6aZone 6a
How Nordman compares
- In 8 years out of 10, the last spring frost in Nordman falls between May 6 and June 4, a 29-day window. The first fall frost falls between September 1 and September 30.
- The median last frost is 6 days later than the Idaho median of May 14.
- Its 116-day growing season is longer than 19% of the 244 Idaho places with a regular frost season (state median 138 days).
- The last frost is 21 days later than the zone 6a median of Apr 29. Hardiness zones measure winter cold, not season length, so use these dates rather than a zone 6a chart.
- The weather station records an average of 190 nights a year at or below 32°F.
- Compared with Spokane, WA, 113 km away, the last frost here is 24 days later than there and the growing season is 56 days shorter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | May 6 |
| 50% (median) | May 20 |
| 10% (safe for tender plants) | June 4 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | September 1 |
| 50% (median) | September 13 |
| 90% (late) | September 30 |
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 Nordman, ID
Nordman, ID frost dates — last frost May 20, first frost Sep 13, zone 6a. whenisthelastfrost.com
Crop
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Start indoors: Feb 25 to Mar 11Transplant outside: Apr 22 to May 6
Start indoors: Mar 11 to Mar 25Transplant outside: Jun 3 to Jun 17
Start indoors: Mar 11 to Mar 25Transplant outside: Jun 3 to Jun 17
Start indoors: Mar 25 to Apr 8Transplant outside: May 27 to Jun 10
Start indoors: Mar 25 to Apr 8Transplant outside: Apr 29 to May 13Sow outdoors: Apr 22 to May 27Plant for fall: Jul 19 to Aug 16
Start indoors: Mar 25 to Apr 8Transplant outside: Apr 22 to May 6Sow outdoors: Apr 22 to May 6Plant for fall: Jul 5 to Jul 26
Start indoors: Mar 25 to Apr 8Transplant outside: May 6 to May 20Plant for fall: Jun 7 to Jun 28
Start indoors: Mar 25 to Apr 8Transplant outside: Apr 29 to May 13Plant for fall: Jun 7 to Jun 28
Start indoors: Mar 25 to Apr 8Transplant outside: May 6 to May 20Plant for fall: Jun 7 to Jun 28
Start indoors: Apr 8 to Apr 22Transplant outside: Jun 10 to Jun 24Sow outdoors: Jun 10 to Jun 24
Start indoors: Apr 8 to Apr 22Transplant outside: May 27 to Jun 10
Sow outdoors: Apr 8 to Apr 29Plant for fall: Jun 21 to Jul 12
Sow outdoors: Apr 8 to Apr 29Plant for fall: Jul 19 to Aug 9
Sow outdoors: Apr 15 to May 27Plant for fall: Aug 2 to Aug 23
Start indoors: Apr 22 to Apr 29Transplant outside: Jun 3 to Jun 10Sow outdoors: May 27 to Jun 10Plant for fall: Jun 28 to Jul 12
Start indoors: Apr 22 to Apr 29Sow outdoors: May 27 to Jun 10Plant for fall: Jul 5 to Jul 19
Start indoors: Apr 22 to Apr 29Sow outdoors: May 27 to Jun 10
Start indoors: Apr 22 to Apr 29Transplant outside: Jun 3 to Jun 17
Sow outdoors: Apr 29 to May 27Plant for fall: Jun 21 to Jul 5
Sow outdoors: Apr 29 to May 27Plant for fall: Jul 5 to Jul 19
Sow outdoors: Apr 29 to May 20
Sow outdoors: May 6 to Jun 3Plant for fall: Jul 5 to Jul 19
Sow outdoors: May 6 to May 27Plant for fall: Jul 19 to Aug 9
Sow outdoors: May 27 to Jun 17
Sow outdoors: May 27 to Jun 10
Transplant outside: Jun 3 to Jun 24
Plant for fall: Aug 30 to Oct 4
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Nordman, ID
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Feb 25 – Mar 11 | Apr 22 – May 6 | — | — |
| Peppers | Mar 11 – Mar 25 | Jun 3 – Jun 17 | — | — |
| Eggplant | Mar 11 – Mar 25 | Jun 3 – Jun 17 | — | — |
| Tomatoes | Mar 25 – Apr 8 | May 27 – Jun 10 | — | — |
| Lettuce | Mar 25 – Apr 8 | Apr 29 – May 13 | Apr 22 – May 27 | Jul 19 – Aug 16 |
| Kale | Mar 25 – Apr 8 | Apr 22 – May 6 | Apr 22 – May 6 | Jul 5 – Jul 26 |
| Broccoli | Mar 25 – Apr 8 | May 6 – May 20 | — | Jun 7 – Jun 28 |
| Cabbage | Mar 25 – Apr 8 | Apr 29 – May 13 | — | Jun 7 – Jun 28 |
| Cauliflower | Mar 25 – Apr 8 | May 6 – May 20 | — | Jun 7 – Jun 28 |
| Okra | Apr 8 – Apr 22 | Jun 10 – Jun 24 | Jun 10 – Jun 24 | — |
| Basil | Apr 8 – Apr 22 | May 27 – Jun 10 | — | — |
| Peas | — | — | Apr 8 – Apr 29 | Jun 21 – Jul 12 |
| Spinach | — | — | Apr 8 – Apr 29 | Jul 19 – Aug 9 |
| Radishes | — | — | Apr 15 – May 27 | Aug 2 – Aug 23 |
| Cucumbers | Apr 22 – Apr 29 | Jun 3 – Jun 10 | May 27 – Jun 10 | Jun 28 – Jul 12 |
| Zucchini & Summer Squash | Apr 22 – Apr 29 | — | May 27 – Jun 10 | Jul 5 – Jul 19 |
| Winter Squash & Pumpkins | Apr 22 – Apr 29 | — | May 27 – Jun 10 | — |
| Melons & Watermelon | Apr 22 – Apr 29 | Jun 3 – Jun 17 | — | — |
| Carrots | — | — | Apr 29 – May 27 | Jun 21 – Jul 5 |
| Beets | — | — | Apr 29 – May 27 | Jul 5 – Jul 19 |
| Potatoes | — | — | Apr 29 – May 20 | — |
| Swiss Chard | — | — | May 6 – Jun 3 | Jul 5 – Jul 19 |
| Cilantro | — | — | May 6 – May 27 | Jul 19 – Aug 9 |
| Green Beans | — | — | May 27 – Jun 17 | — |
| Sweet Corn | — | — | May 27 – Jun 10 | — |
| Sweet Potatoes | — | Jun 3 – Jun 24 | — | — |
| Garlic | — | — | — | Aug 30 – Oct 4 |
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 Priest Rvr Exp Stn, ID weather station, 33 km away (elevation 2,372 ft (723 m)).
Frost dates near Nordman
- Coolin May 20 · Sep 13
- Colburn May 8 · Sep 28
- Naples Apr 30 · Oct 4
- Bonners Ferry Apr 30 · Oct 4
- Sandpoint May 8 · Sep 28
- Ponderay May 8 · Sep 28
- Kootenai May 8 · Sep 28
- Dover May 8 · Sep 28
- Priest River May 12 · Sep 21
- Porthill May 4 · Sep 30
Frequently asked questions
When is the last frost in Nordman, ID?
The median last spring frost in Nordman, ID is May 20. There is still about a 10% chance of frost after June 4, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Nordman, ID?
The median first fall frost is September 13, with about a 10% chance of frost before September 1.
How long is the growing season in Nordman, ID?
About 116 days between the median last spring frost and first fall frost.
What planting zone is Nordman, ID?
Nordman, ID is in USDA hardiness zone 6a.