Fall in zone 5aPhoto: Dietmar Rabich, CC BY-SA 4.0, via Wikimedia Commons
Frost dates for ZIP 82324 (Elk Mountain, WY)
Average last spring and first fall frost dates with 10%, 50% and 90% odds, from NOAA's 1991–2020 climate normals for the nearest weather station, Elk Mtn, WY (2 miles away).
- Average last spring frostMay 2850% chance of a 32°F freeze after this date
- Average first fall frostSep 1350% chance of a 32°F freeze by this date
- Growing season (frost-free)108 daysmedian, 32°F threshold
- USDA hardiness zone5a-20 to -15°F avg. coldest night
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This week in your yard
As of Oct 18, 2026, from your frost dates, zone and soil temperature. Lawn timing · Vegetables · Pruning · Plants
Soil temperature now
2-inch depth
No soil station with a fresh reading within 62 miles.
4-inch depth
No soil station with a fresh reading within 62 miles.
Fall: Texas A&M AgriLife times fall pre-emergent (for winter weeds such as annual bluegrass) to soil cooling to about 70°F for several days. The 50–55°F band is the spring trigger. Always read and follow the product label.
7-day forecast and frost risk
The latest National Weather Service 7-day forecast and any Frost Advisory or Freeze Warning for 82324 load here. You can also open the NWS forecast for this ZIP.
Pre-emergent
No soil reading near this ZIP. Typical extension timing for your region: spring mid-April to mid-May.
Fertilizer window
Lawn region: Mountain West and High Plains. Timing only; always follow the product label.
- Kentucky bluegrass (cool-season): Early fall: Around Labor Day (late August–September); Late fall: Late October–November, before the ground freezes; Late spring: Optional around Memorial Day. Avoid: Early-spring and midsummer feeding (pushes top growth, favors crabgrass).
Plant now
No vegetable planting windows are open this week.
Prune now
No frost-timed pruning windows are open this week.
Spring-flowering shrubs are pruned right after their flowers fade, not by date. See the pruning guide.
Last spring frost odds
| Chance of a 32°F freeze after this date | Date |
|---|---|
| 90% (early: most years still freeze after this) | May 14 |
| 50% (the "average" last frost) | May 28 |
| 10% (cautious: only 1 year in 10 freezes later) | Jun 13 |
Most gardeners plant frost-tender crops (tomatoes, peppers, basil) after the 50% date, and closer to the 10% date for less risk.
First fall frost odds
| Chance the first 32°F freeze has happened by this date | Date |
|---|---|
| 10% (early: 1 year in 10 freezes this soon) | Aug 30 |
| 50% (the "average" first frost) | Sep 13 |
| 90% (late: most years have frozen by now) | Oct 1 |
Light frost, freeze and hard freeze
| Threshold | Last spring (50%) | First fall (50%) |
|---|---|---|
| 36°F (light frost possible on clear, calm nights) | n/a | n/a |
| 32°F (freeze) | May 28 | Sep 13 |
| 28°F (hard freeze) | May 13 | Sep 26 |
n/a means NOAA did not publish a date at that threshold for this station (usually because it rarely gets that cold).
Vegetable planting calendar for 82324
Dates count from your average last spring frost (May 28) and first fall frost (Sep 13). Half of years have a frost after the spring date, so give tender crops (tomatoes, peppers, squash) some slack.
| Crop | Start indoors | Spring planting | Fall planting |
|---|---|---|---|
| Tomato | Apr 2–16 | Jun 4–18 (transplant) | – |
| Pepper (sweet and hot) | Mar 19–Apr 2 | Jun 11–25 (transplant) | – |
| Eggplant | Mar 19–Apr 2 | Jun 11–25 (transplant) | – |
| Tomatillo | Apr 2–16 | Jun 4–18 (transplant) | – |
| Lettuce | Apr 2–16 | May 7–28 (transplant) Apr 30–Jun 11 (sow outdoors) | Jul 19–Aug 9 (transplant) Jul 5–Aug 2 (sowing) |
| Spinach | – | Apr 16–May 7 (sow outdoors) | Jul 19–Aug 9 (sowing) |
| Kale | Apr 2–16 | Apr 30–May 14 (transplant) Apr 30–May 14 (sow outdoors) | Jun 21–Jul 19 (transplant) Jun 7–Jul 5 (sowing) |
| Collards | Apr 2–16 | Apr 30–May 28 (transplant) Apr 30–May 28 (sow outdoors) | Jun 21–Jul 19 (transplant) Jun 7–Jul 5 (sowing) |
| Broccoli | Mar 19–Apr 2 | Apr 30–May 14 (transplant) | Jun 7–Jul 5 (transplant) |
| Cabbage | Mar 19–Apr 2 | Apr 30–May 14 (transplant) | Jun 7–Jul 5 (transplant) |
| Cauliflower | Mar 19–Apr 2 | May 14–28 (transplant) | Jun 7–Jul 5 (transplant) |
| Brussels sprouts | Mar 5–19 | Apr 30–May 14 (transplant) | May 24–Jun 14 (transplant) |
| Kohlrabi | Apr 2–16 | Apr 30–May 14 (transplant) Apr 30–May 14 (sow outdoors) | Jul 5–19 (sowing) |
| Bok choy / Asian greens | – | Apr 30–May 14 (sow outdoors) | Jul 19–Aug 2 (sowing) |
| Arugula | – | Apr 30–May 28 (sow outdoors) | Jul 19–Aug 16 (sowing) |
| Mustard greens | – | Apr 30–May 21 (sow outdoors) | Jul 19–Aug 2 (sowing) |
| Swiss chard | Apr 16–30 | May 14–Jun 4 (transplant) May 14–Jun 11 (sow outdoors) | Jul 5–19 (sowing) |
| Beet | – | Apr 30–May 28 (sow outdoors) | Jul 5–19 (sowing) |
| Carrot | – | May 7–Jun 4 (sow outdoors) | Jun 21–Jul 5 (sowing) |
| Radish | – | Apr 23–Jun 4 (sow outdoors) | Aug 2–16 (sowing) |
| Turnip | – | Apr 30–May 21 (sow outdoors) | Jul 5–19 (sowing) |
| Parsnip | – | May 7–28 (sow outdoors) | – |
| Pea (garden, snap, snow) | – | Apr 2–30 (sow outdoors) | Jun 21–Jul 5 (sowing) |
| Onion (bulbing) | Mar 5–19 | Apr 16–30 (transplant) | – |
| Green onion / scallion | – | Apr 16–May 14 (sow outdoors) | Jul 5–19 (sowing) |
| Leek | Mar 5–19 | Apr 30–May 14 (transplant) | – |
| Garlic | – | – | Aug 2–30 (sowing) |
| Shallot | – | Apr 16–30 (transplant) | Aug 2–30 (sowing) |
| Potato | – | Apr 30–May 14 (transplant) | May 24–Jun 7 (transplant) |
| Sweet potato | – | Jun 18–Jul 2 (transplant) | – |
| Sweet corn | – | Jun 4–18 (sow outdoors) | – |
| Bean, bush (snap) | – | Jun 4–18 (sow outdoors) | – |
| Bean, pole | – | Jun 4–18 (sow outdoors) | – |
| Lima bean | – | Jun 11–25 (sow outdoors) | – |
| Southern pea (cowpea, black-eyed pea) | – | Jun 18–Jul 9 (sow outdoors) | – |
| Cucumber | Apr 30–May 7 | Jun 4–18 (transplant) Jun 4–18 (sow outdoors) | – |
| Summer squash / zucchini | Apr 30–May 7 | Jun 4–18 (transplant) Jun 4–18 (sow outdoors) | – |
| Winter squash | Apr 30–May 7 | Jun 4–18 (transplant) Jun 4–18 (sow outdoors) | – |
| Pumpkin | – | Jun 4–18 (sow outdoors) | – |
| Watermelon | Apr 30–May 7 | Jun 11–25 (transplant) Jun 11–25 (sow outdoors) | – |
| Cantaloupe / muskmelon | Apr 30–May 7 | Jun 11–25 (transplant) Jun 11–25 (sow outdoors) | – |
| Okra | Apr 16–30 | Jun 11–25 (transplant) Jun 11–25 (sow outdoors) | – |
| Celery | Mar 5–19 | Jun 4–11 (transplant) | – |
| Basil | Apr 16–30 | Jun 4–18 (transplant) Jun 4–18 (sow outdoors) | – |
| Cilantro | – | May 14–Jun 11 (sow outdoors) | Jul 19–Aug 2 (sowing) |
| Parsley | Mar 19–Apr 2 | May 14–28 (transplant) May 7–28 (sow outdoors) | – |
| Dill | – | May 28–Jun 11 (sow outdoors) | Jul 19–Aug 2 (sowing) |
| Sunflower | – | May 28–Jun 11 (sow outdoors) | – |
| Asparagus (crowns) | – | Apr 30–May 14 (transplant) | – |
| Rhubarb (crowns) | – | Apr 30–May 14 (transplant) | – |
| Strawberry (plants) | – | Apr 30–May 14 (transplant) | Jul 5–Aug 2 (transplant) |
Typical ranges from university extension planting calendars, adjusted to your frost dates. Probabilities, not guarantees. Fall windows that would overlap spring planting are left out, as are fall crops of frost-tender plants where the frost-free season is under 210 days.
Where these numbers come from
Station: Elk Mtn, WY (NOAA GHCN-Daily ID USC00482995), elevation 7,265 ft, 2.1 miles from the ZIP's center point. NOAA completeness flag: R (representative, 10+ years).
Nearby stations
| Station | Distance | Last frost (50%) | First frost (50%) |
|---|---|---|---|
| Medicine Bow, WY | 20 mi | Jun 1 | Sep 8 |
| Saratoga 4N, WY | 21 mi | Jun 12 | Sep 7 |
| Saratoga, WY | 24 mi | Jun 2 | Sep 12 |
The average last-frost dates of these stations span 15 days, a rough guide to local variation. See data sources & methods.
Frost questions for 82324
When is the last frost in 82324?
The average (50% chance) last spring freeze of 32°F for ZIP 82324 is May 28. For a more cautious planting date, use June 13, when only 1 year in 10 still sees a later freeze.
When is the first frost in 82324?
The average first fall freeze is September 13. In 1 year in 10 it comes by August 30.
What hardiness zone is 82324?
ZIP 82324 is in USDA zone 5a (-20 to -15°F average coldest winter night), per the 2023 USDA Plant Hardiness Zone Map ZIP listing.
What is the soil temperature in 82324 right now?
This page shows the latest 2-inch and 4-inch soil temperature from the nearest public soil station (USDA SCAN, NOAA USCRN or TexMesonet), or a labeled estimate when no station is close, against the 50–55°F spring pre-emergent band.
Nearby ZIP codes
82335 82055 Centennial 82083 Arlington 82331 Saratoga 82329 Medicine Bow 82334 Sinclair 82327 Hanna 82325 Encampment
Other ZIP codes in Carbon County
82301 82321 82323 82325 82327 82329 82331 82332 82334 82335 All Carbon County frost dates · Wyoming frost dates
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Weekly yard timing, plus frost and soil-temperature alerts for your ZIP code.
- Freeze alerts
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Free. One weekly email plus alerts when your ZIP has a frost or a soil-temperature change worth acting on. After you submit, Kit (our email provider) sends a confirmation email: check your email and click the link to confirm. You aren't subscribed until you do. We collect only your email address and ZIP, sent to Kit to deliver The Dial. Unsubscribe anytime.