Fall in zone 8aPhoto: George Chernilevsky, Public domain, via Wikimedia Commons
Frost dates for ZIP 84533 (Halls Crossing, UT)
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, Bullfrog Basin, UT (13 miles away).
- Average last spring frostMar 2550% chance of a 32°F freeze after this date
- Average first fall frostNov 1050% chance of a 32°F freeze by this date
- Growing season (frost-free)227 daysmedian, 32°F threshold
- USDA hardiness zone8a10 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
53°F 50–55°F
24-hour average · latest 54°F, as of Oct 18, 2:00 AM CDT
Estimate Not a measurement at this ZIP: distance-weighted average of Spooky (40 mi).
4-inch depth
53°F 50–55°F
24-hour average · latest 55°F, as of Oct 18, 2:00 AM CDT
Estimate Not a measurement at this ZIP: distance-weighted average of Spooky (40 mi).
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 84533 load here. You can also open the NWS forecast for this ZIP.
Pre-emergent
Soil is 53°F at 4 inches (estimated soil temperature, not a station reading). Fall pre-emergent window is mostly past. Next: spring, when soil reaches 50°F (typically 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
Prune now
No frost-timed pruning windows are open this week.
Your average first frost is Nov 10: skip heavy pruning in the 6–8 weeks before it, because new growth may not harden off in time.
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) | Mar 8 |
| 50% (the "average" last frost) | Mar 25 |
| 10% (cautious: only 1 year in 10 freezes later) | Apr 12 |
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) | Oct 26 |
| 50% (the "average" first frost) | Nov 10 |
| 90% (late: most years have frozen by now) | Nov 20 |
Light frost, freeze and hard freeze
| Threshold | Last spring (50%) | First fall (50%) |
|---|---|---|
| 36°F (light frost possible on clear, calm nights) | Apr 11 | Oct 31 |
| 32°F (freeze) | Mar 25 | Nov 10 |
| 28°F (hard freeze) | Mar 6 | Nov 20 |
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 84533
Dates count from your average last spring frost (Mar 25) and first fall frost (Nov 10). 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 | Jan 28–Feb 11 | Apr 1–15 (transplant) | Jul 14–Aug 11 (transplant) |
| Pepper (sweet and hot) | Jan 14–28 | Apr 8–22 (transplant) | Jul 21–Aug 11 (transplant) |
| Eggplant | Jan 14–28 | Apr 8–22 (transplant) | Jul 21–Aug 11 (transplant) |
| Tomatillo | Jan 28–Feb 11 | Apr 1–15 (transplant) | – |
| Lettuce | Jan 28–Feb 11 | Mar 4–25 (transplant) Feb 25–Apr 8 (sow outdoors) | Sep 15–Oct 6 (transplant) Sep 1–29 (sowing) |
| Spinach | – | Feb 11–Mar 4 (sow outdoors) | Sep 15–Oct 6 (sowing) |
| Kale | Jan 28–Feb 11 | Feb 25–Mar 11 (transplant) Feb 25–Mar 11 (sow outdoors) | Aug 18–Sep 15 (transplant) Aug 4–Sep 1 (sowing) |
| Collards | Jan 28–Feb 11 | Feb 25–Mar 25 (transplant) Feb 25–Mar 25 (sow outdoors) | Aug 18–Sep 15 (transplant) Aug 4–Sep 1 (sowing) |
| Broccoli | Jan 14–28 | Feb 25–Mar 11 (transplant) | Aug 4–Sep 1 (transplant) |
| Cabbage | Jan 14–28 | Feb 25–Mar 11 (transplant) | Aug 4–Sep 1 (transplant) |
| Cauliflower | Jan 14–28 | Mar 11–25 (transplant) | Aug 4–Sep 1 (transplant) |
| Brussels sprouts | Dec 31–Jan 14 | Feb 25–Mar 11 (transplant) | Jul 21–Aug 11 (transplant) |
| Kohlrabi | Jan 28–Feb 11 | Feb 25–Mar 11 (transplant) Feb 25–Mar 11 (sow outdoors) | Sep 1–15 (sowing) |
| Bok choy / Asian greens | – | Feb 25–Mar 11 (sow outdoors) | Sep 15–29 (sowing) |
| Arugula | – | Feb 25–Mar 25 (sow outdoors) | Sep 15–Oct 13 (sowing) |
| Mustard greens | – | Feb 25–Mar 18 (sow outdoors) | Sep 15–29 (sowing) |
| Swiss chard | Feb 11–25 | Mar 11–Apr 1 (transplant) Mar 11–Apr 8 (sow outdoors) | Sep 1–15 (sowing) |
| Beet | – | Feb 25–Mar 25 (sow outdoors) | Sep 1–15 (sowing) |
| Carrot | – | Mar 4–Apr 1 (sow outdoors) | Aug 18–Sep 1 (sowing) |
| Radish | – | Feb 18–Apr 1 (sow outdoors) | Sep 29–Oct 13 (sowing) |
| Turnip | – | Feb 25–Mar 18 (sow outdoors) | Sep 1–15 (sowing) |
| Parsnip | – | Mar 4–25 (sow outdoors) | – |
| Pea (garden, snap, snow) | – | Jan 28–Feb 25 (sow outdoors) | Aug 18–Sep 1 (sowing) |
| Onion (bulbing) | Dec 31–Jan 14 | Feb 11–25 (transplant) | – |
| Green onion / scallion | – | Feb 11–Mar 11 (sow outdoors) | Sep 1–15 (sowing) |
| Leek | Dec 31–Jan 14 | Feb 25–Mar 11 (transplant) | – |
| Garlic | – | – | Sep 29–Oct 27 (sowing) |
| Shallot | – | Feb 11–25 (transplant) | Sep 29–Oct 27 (sowing) |
| Potato | – | Feb 25–Mar 11 (transplant) | Jul 21–Aug 4 (transplant) |
| Sweet potato | – | Apr 15–29 (transplant) | – |
| Sweet corn | – | Apr 1–15 (sow outdoors) | – |
| Bean, bush (snap) | – | Apr 1–15 (sow outdoors) | Aug 18–Sep 1 (sowing) |
| Bean, pole | – | Apr 1–15 (sow outdoors) | – |
| Lima bean | – | Apr 8–22 (sow outdoors) | – |
| Southern pea (cowpea, black-eyed pea) | – | Apr 15–May 6 (sow outdoors) | – |
| Cucumber | Feb 25–Mar 4 | Apr 1–15 (transplant) Apr 1–15 (sow outdoors) | Aug 18–Sep 1 (sowing) |
| Summer squash / zucchini | Feb 25–Mar 4 | Apr 1–15 (transplant) Apr 1–15 (sow outdoors) | Aug 18–Sep 1 (sowing) |
| Winter squash | Feb 25–Mar 4 | Apr 1–15 (transplant) Apr 1–15 (sow outdoors) | – |
| Pumpkin | – | Apr 1–15 (sow outdoors) | – |
| Watermelon | Feb 25–Mar 4 | Apr 8–22 (transplant) Apr 8–22 (sow outdoors) | – |
| Cantaloupe / muskmelon | Feb 25–Mar 4 | Apr 8–22 (transplant) Apr 8–22 (sow outdoors) | – |
| Okra | Feb 11–25 | Apr 8–22 (transplant) Apr 8–22 (sow outdoors) | – |
| Celery | Dec 31–Jan 14 | Apr 1–8 (transplant) | – |
| Basil | Feb 11–25 | Apr 1–15 (transplant) Apr 1–15 (sow outdoors) | – |
| Cilantro | – | Mar 11–Apr 8 (sow outdoors) | Sep 15–29 (sowing) |
| Parsley | Jan 14–28 | Mar 11–25 (transplant) Mar 4–25 (sow outdoors) | – |
| Dill | – | Mar 25–Apr 8 (sow outdoors) | Sep 15–29 (sowing) |
| Sunflower | – | Mar 25–Apr 8 (sow outdoors) | – |
| Asparagus (crowns) | – | Feb 25–Mar 11 (transplant) | – |
| Rhubarb (crowns) | – | Feb 25–Mar 11 (transplant) | – |
| Strawberry (plants) | – | Feb 25–Mar 11 (transplant) | Sep 1–29 (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: Bullfrog Basin, UT (NOAA GHCN-Daily ID USC00421020), elevation 3,822 ft, 12.9 miles from the ZIP's center point. NOAA completeness flag: R (representative, 10+ years).
Nearby stations
| Station | Distance | Last frost (50%) | First frost (50%) |
|---|---|---|---|
| Hite Rs, UT | 33 mi | Mar 9 | Nov 20 |
| Natural Bridges Nm, UT | 34 mi | May 5 | Oct 13 |
| Valley Of The Gods, UT | 35 mi | Mar 29 | Nov 6 |
The average last-frost dates of these stations span 58 days, a rough guide to local variation. See data sources & methods.
Frost questions for 84533
When is the last frost in 84533?
The average (50% chance) last spring freeze of 32°F for ZIP 84533 is March 25. For a more cautious planting date, use April 12, when only 1 year in 10 still sees a later freeze.
When is the first frost in 84533?
The average first fall freeze is November 10. In 1 year in 10 it comes by October 26.
What hardiness zone is 84533?
ZIP 84533 is in USDA zone 8a (10 to 15°F average coldest winter night), per the 2023 USDA Plant Hardiness Zone Map ZIP listing.
What is the soil temperature in 84533 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
84536 Oljato-Monument Valley 84531 Mexican Hat 86044 86054 Shonto 86033 Chilchinbito 86053 Kaibito 86535 Dennehotso 84512 Bluff
Other ZIP codes in San Juan County
84511 84512 84530 84531 84534 84535 84536 All San Juan County frost dates · Utah frost dates
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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.