Lake Fork, ID frost dates
Last spring frostJun 22median date
First fall frostSep 2median date
Growing season72 daysfrost-free
Hardiness zone5aZone 5a
How Lake Fork compares
- In 8 years out of 10, the last spring frost in Lake Fork falls between June 3 and July 10, a 37-day window. The first fall frost falls between August 14 and September 18.
- The median last frost is 39 days later than the Idaho median of May 14.
- Its 72-day growing season is among the shortest of the 244 Idaho places with a regular frost season.
- The last frost is 50 days later than the zone 5a median of May 3. Hardiness zones measure winter cold, not season length, so use these dates rather than a zone 5a chart.
- The weather station records an average of 217 nights a year at or below 32°F.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | June 3 |
| 50% (median) | June 22 |
| 10% (safe for tender plants) | July 10 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | August 14 |
| 50% (median) | September 2 |
| 90% (late) | September 18 |
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 Lake Fork, ID
Lake Fork, ID frost dates — last frost Jun 22, first frost Sep 2, zone 5a. whenisthelastfrost.com
Crop
JFMAMJJASOND
Start indoors: Mar 30 to Apr 13Transplant outside: May 25 to Jun 8
Start indoors: Apr 13 to Apr 27Transplant outside: Jul 6 to Jul 20
Start indoors: Apr 13 to Apr 27Transplant outside: Jul 6 to Jul 20
Start indoors: Apr 27 to May 11Transplant outside: Jun 29 to Jul 13
Start indoors: Apr 27 to May 11Transplant outside: Jun 1 to Jun 15Sow outdoors: May 25 to Jun 29
Start indoors: Apr 27 to May 11Transplant outside: May 25 to Jun 8Sow outdoors: May 25 to Jun 8
Start indoors: Apr 27 to May 11Transplant outside: Jun 8 to Jun 22
Start indoors: Apr 27 to May 11Transplant outside: Jun 1 to Jun 15
Start indoors: Apr 27 to May 11Transplant outside: Jun 8 to Jun 22
Start indoors: May 11 to May 25Transplant outside: Jul 13 to Jul 27Sow outdoors: Jul 13 to Jul 27
Start indoors: May 11 to May 25Transplant outside: Jun 29 to Jul 13
Sow outdoors: May 11 to Jun 1
Sow outdoors: May 11 to Jun 1Plant for fall: Jul 8 to Jul 29
Sow outdoors: May 18 to Jun 29Plant for fall: Jul 22 to Aug 12
Start indoors: May 25 to Jun 1Transplant outside: Jul 6 to Jul 13Sow outdoors: Jun 29 to Jul 13
Start indoors: May 25 to Jun 1Sow outdoors: Jun 29 to Jul 13
Start indoors: May 25 to Jun 1Sow outdoors: Jun 29 to Jul 13
Start indoors: May 25 to Jun 1Transplant outside: Jul 6 to Jul 20
Sow outdoors: Jun 1 to Jun 29
Sow outdoors: Jun 1 to Jun 29
Sow outdoors: Jun 1 to Jun 22
Sow outdoors: Jun 8 to Jul 6
Sow outdoors: Jun 8 to Jun 29
Sow outdoors: Jun 29 to Jul 20
Sow outdoors: Jun 29 to Jul 13
Transplant outside: Jul 6 to Jul 27
Plant for fall: Aug 19 to Sep 23
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Lake Fork, ID
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Mar 30 – Apr 13 | May 25 – Jun 8 | — | — |
| Peppers Warning: Your frost-free season is about 72 days, which is tight for peppers (75+ days). Choose early varieties and use transplants or row covers. | Apr 13 – Apr 27 | Jul 6 – Jul 20 | — | — |
| Eggplant Warning: Your frost-free season is about 72 days, which is tight for eggplant (75+ days). Choose early varieties and use transplants or row covers. | Apr 13 – Apr 27 | Jul 6 – Jul 20 | — | — |
| Tomatoes Warning: Your frost-free season is about 72 days, which is tight for tomatoes (70+ days). Choose early varieties and use transplants or row covers. | Apr 27 – May 11 | Jun 29 – Jul 13 | — | — |
| Lettuce | Apr 27 – May 11 | Jun 1 – Jun 15 | May 25 – Jun 29 | — |
| Kale | Apr 27 – May 11 | May 25 – Jun 8 | May 25 – Jun 8 | — |
| Broccoli | Apr 27 – May 11 | Jun 8 – Jun 22 | — | — |
| Cabbage | Apr 27 – May 11 | Jun 1 – Jun 15 | — | — |
| Cauliflower | Apr 27 – May 11 | Jun 8 – Jun 22 | — | — |
| Okra Warning: Your frost-free season is about 72 days, which is tight for okra (60+ days). Choose early varieties and use transplants or row covers. | May 11 – May 25 | Jul 13 – Jul 27 | Jul 13 – Jul 27 | — |
| Basil Warning: Your frost-free season is about 72 days, which is tight for basil (60+ days). Choose early varieties and use transplants or row covers. | May 11 – May 25 | Jun 29 – Jul 13 | — | — |
| Peas | — | — | May 11 – Jun 1 | — |
| Spinach | — | — | May 11 – Jun 1 | Jul 8 – Jul 29 |
| Radishes | — | — | May 18 – Jun 29 | Jul 22 – Aug 12 |
| Cucumbers | May 25 – Jun 1 | Jul 6 – Jul 13 | Jun 29 – Jul 13 | — |
| Zucchini & Summer Squash | May 25 – Jun 1 | — | Jun 29 – Jul 13 | — |
| Winter Squash & Pumpkins Warning: Your frost-free season is about 72 days, which is tight for winter squash & pumpkins (100+ days). Choose early varieties and use transplants or row covers. | May 25 – Jun 1 | — | Jun 29 – Jul 13 | — |
| Melons & Watermelon Warning: Your frost-free season is about 72 days, which is tight for melons & watermelon (85+ days). Choose early varieties and use transplants or row covers. | May 25 – Jun 1 | Jul 6 – Jul 20 | — | — |
| Carrots | — | — | Jun 1 – Jun 29 | — |
| Beets | — | — | Jun 1 – Jun 29 | — |
| Potatoes | — | — | Jun 1 – Jun 22 | — |
| Swiss Chard | — | — | Jun 8 – Jul 6 | — |
| Cilantro | — | — | Jun 8 – Jun 29 | — |
| Green Beans | — | — | Jun 29 – Jul 20 | — |
| Sweet Corn Warning: Your frost-free season is about 72 days, which is tight for sweet corn (80+ days). Choose early varieties and use transplants or row covers. | — | — | Jun 29 – Jul 13 | — |
| Sweet Potatoes Warning: Your frost-free season is about 72 days, which is tight for sweet potatoes (100+ days). Choose early varieties and use transplants or row covers. | — | Jul 6 – Jul 27 | — | — |
| Garlic | — | — | — | Aug 19 – Sep 23 |
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 Mccall, ID weather station, 6 km away (elevation 5,026 ft (1,532 m)).
Frost dates near Lake Fork
- McCall Jun 10 · Sep 10
- Donnelly May 30 · Sep 19
- New Meadows frost any month
- Council May 10 · Oct 2
- Mesa May 10 · Oct 2
- Cascade frost any month
- Indian Valley May 15 · Sep 27
- Yellow Pine Jun 12 · Sep 11
- Cambridge May 15 · Sep 27
- Pollock May 6 · Oct 9
Frequently asked questions
When is the last frost in Lake Fork, ID?
The median last spring frost in Lake Fork, ID is June 22. There is still about a 10% chance of frost after July 10, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Lake Fork, ID?
The median first fall frost is September 2, with about a 10% chance of frost before August 14.
How long is the growing season in Lake Fork, ID?
About 72 days between the median last spring frost and first fall frost.
What planting zone is Lake Fork, ID?
Lake Fork, ID is in USDA hardiness zone 5a.