La Barge, WY frost dates
Last spring frostJun 9median date
First fall frostSep 4median date
Growing season87 daysfrost-free
Hardiness zone4aZone 4a
How La Barge compares
- In 8 years out of 10, the last spring frost in La Barge falls between May 24 and June 27, a 34-day window. The first fall frost falls between August 21 and September 18.
- The median last frost is 19 days later than the Wyoming median of May 21.
- Its 87-day growing season is longer than 5% of the 153 Wyoming places with a regular frost season (state median 125 days).
- The last frost is 28 days later than the zone 4a median of May 12. Hardiness zones measure winter cold, not season length, so use these dates rather than a zone 4a chart.
- The weather station records an average of 240 nights a year at or below 32°F.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | May 24 |
| 50% (median) | June 9 |
| 10% (safe for tender plants) | June 27 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | August 21 |
| 50% (median) | September 4 |
| 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 La Barge, WY
La Barge, WY frost dates — last frost Jun 9, first frost Sep 4, zone 4a. whenisthelastfrost.com
Crop
JFMAMJJASOND
Start indoors: Mar 17 to Mar 31Transplant outside: May 12 to May 26
Start indoors: Mar 31 to Apr 14Transplant outside: Jun 23 to Jul 7
Start indoors: Mar 31 to Apr 14Transplant outside: Jun 23 to Jul 7
Start indoors: Apr 14 to Apr 28Transplant outside: Jun 16 to Jun 30
Start indoors: Apr 14 to Apr 28Transplant outside: May 19 to Jun 2Sow outdoors: May 12 to Jun 16Plant for fall: Jul 10 to Aug 7
Start indoors: Apr 14 to Apr 28Transplant outside: May 12 to May 26Sow outdoors: May 12 to May 26Plant for fall: Jun 26 to Jul 17
Start indoors: Apr 14 to Apr 28Transplant outside: May 26 to Jun 9
Start indoors: Apr 14 to Apr 28Transplant outside: May 19 to Jun 2
Start indoors: Apr 14 to Apr 28Transplant outside: May 26 to Jun 9
Start indoors: Apr 28 to May 12Transplant outside: Jun 30 to Jul 14Sow outdoors: Jun 30 to Jul 14
Start indoors: Apr 28 to May 12Transplant outside: Jun 16 to Jun 30
Sow outdoors: Apr 28 to May 19
Sow outdoors: Apr 28 to May 19Plant for fall: Jul 10 to Jul 31
Sow outdoors: May 5 to Jun 16Plant for fall: Jul 24 to Aug 14
Start indoors: May 12 to May 19Transplant outside: Jun 23 to Jun 30Sow outdoors: Jun 16 to Jun 30
Start indoors: May 12 to May 19Sow outdoors: Jun 16 to Jun 30
Start indoors: May 12 to May 19Sow outdoors: Jun 16 to Jun 30
Start indoors: May 12 to May 19Transplant outside: Jun 23 to Jul 7
Sow outdoors: May 19 to Jun 16
Sow outdoors: May 19 to Jun 16
Sow outdoors: May 19 to Jun 9
Sow outdoors: May 26 to Jun 23
Sow outdoors: May 26 to Jun 16Plant for fall: Jul 10 to Jul 31
Sow outdoors: Jun 16 to Jul 7
Sow outdoors: Jun 16 to Jun 30
Transplant outside: Jun 23 to Jul 14
Plant for fall: Aug 21 to Sep 25
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in La Barge, WY
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Mar 17 – Mar 31 | May 12 – May 26 | — | — |
| Peppers Warning: Your frost-free season is about 87 days, which is tight for peppers (75+ days). Choose early varieties and use transplants or row covers. | Mar 31 – Apr 14 | Jun 23 – Jul 7 | — | — |
| Eggplant Warning: Your frost-free season is about 87 days, which is tight for eggplant (75+ days). Choose early varieties and use transplants or row covers. | Mar 31 – Apr 14 | Jun 23 – Jul 7 | — | — |
| Tomatoes | Apr 14 – Apr 28 | Jun 16 – Jun 30 | — | — |
| Lettuce | Apr 14 – Apr 28 | May 19 – Jun 2 | May 12 – Jun 16 | Jul 10 – Aug 7 |
| Kale | Apr 14 – Apr 28 | May 12 – May 26 | May 12 – May 26 | Jun 26 – Jul 17 |
| Broccoli | Apr 14 – Apr 28 | May 26 – Jun 9 | — | — |
| Cabbage | Apr 14 – Apr 28 | May 19 – Jun 2 | — | — |
| Cauliflower | Apr 14 – Apr 28 | May 26 – Jun 9 | — | — |
| Okra | Apr 28 – May 12 | Jun 30 – Jul 14 | Jun 30 – Jul 14 | — |
| Basil | Apr 28 – May 12 | Jun 16 – Jun 30 | — | — |
| Peas | — | — | Apr 28 – May 19 | — |
| Spinach | — | — | Apr 28 – May 19 | Jul 10 – Jul 31 |
| Radishes | — | — | May 5 – Jun 16 | Jul 24 – Aug 14 |
| Cucumbers | May 12 – May 19 | Jun 23 – Jun 30 | Jun 16 – Jun 30 | — |
| Zucchini & Summer Squash | May 12 – May 19 | — | Jun 16 – Jun 30 | — |
| Winter Squash & Pumpkins Warning: Your frost-free season is about 87 days, which is tight for winter squash & pumpkins (100+ days). Choose early varieties and use transplants or row covers. | May 12 – May 19 | — | Jun 16 – Jun 30 | — |
| Melons & Watermelon Warning: Your frost-free season is about 87 days, which is tight for melons & watermelon (85+ days). Choose early varieties and use transplants or row covers. | May 12 – May 19 | Jun 23 – Jul 7 | — | — |
| Carrots | — | — | May 19 – Jun 16 | — |
| Beets | — | — | May 19 – Jun 16 | — |
| Potatoes | — | — | May 19 – Jun 9 | — |
| Swiss Chard | — | — | May 26 – Jun 23 | — |
| Cilantro | — | — | May 26 – Jun 16 | Jul 10 – Jul 31 |
| Green Beans | — | — | Jun 16 – Jul 7 | — |
| Sweet Corn Warning: Your frost-free season is about 87 days, which is tight for sweet corn (80+ days). Choose early varieties and use transplants or row covers. | — | — | Jun 16 – Jun 30 | — |
| Sweet Potatoes Warning: Your frost-free season is about 87 days, which is tight for sweet potatoes (100+ days). Choose early varieties and use transplants or row covers. | — | Jun 23 – Jul 14 | — | — |
| Garlic | — | — | — | Aug 21 – Sep 25 |
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 La Barge, WY weather station, 2 km away (elevation 6,598 ft (2,011 m)).
Frost dates near La Barge
- Big Piney frost any month
- Opal frost any month
- Frontier frost any month
- Kemmerer frost any month
- Diamondville frost any month
- Cokeville frost any month
- Farson frost any month
- Smoot Jun 20 · Sep 1
- Pinedale frost any month
- Boulder frost any month
Frequently asked questions
When is the last frost in La Barge, WY?
The median last spring frost in La Barge, WY is June 9. There is still about a 10% chance of frost after June 27, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in La Barge, WY?
The median first fall frost is September 4, with about a 10% chance of frost before August 21.
How long is the growing season in La Barge, WY?
About 87 days between the median last spring frost and first fall frost.
What planting zone is La Barge, WY?
La Barge, WY is in USDA hardiness zone 4a.