Fall in zone 7aPhoto: Dietmar Rabich, CC BY-SA 4.0, via Wikimedia Commons
Frost dates for ZIP 86023 (Grand Canyon Village, AZ)
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, Phantom Rch, AZ (6 miles away).
- Average last spring frostFeb 950% chance of a 32°F freeze after this date
- Average first fall frostDec 550% chance of a 32°F freeze by this date
- Growing season (frost-free)295 daysmedian, 32°F threshold
- USDA hardiness zone7a0 to 5°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
48°F Below 50°F
24-hour average · latest 48°F, as of Oct 18, 1:00 AM CDT
Estimate Not a measurement at this ZIP: distance-weighted average of Williams 35 NNW (27 mi).
4-inch depth
51°F 50–55°F
24-hour average · latest 51°F, as of Oct 18, 1:00 AM CDT
Estimate Not a measurement at this ZIP: distance-weighted average of Williams 35 NNW (27 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 86023 load here. You can also open the NWS forecast for this ZIP.
Pre-emergent
Soil is 51°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
- Lettuce: fall sowing Sep 26–Oct 24
- Lettuce: fall transplant Oct 10–31
- Spinach: fall sowing Oct 10–31
- Bok choy / Asian greens: fall sowing Oct 10–24
- Arugula: fall sowing Oct 10–Nov 7
- Mustard greens: fall sowing Oct 10–24
- Cilantro: fall sowing Oct 10–24
- Dill: fall sowing Oct 10–24
- Strawberry (plants): fall transplant Sep 26–Oct 24
Coming up in the next 3 weeks
Prune now
No frost-timed pruning windows are open this week.
Your average first frost is Dec 5: 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) | Jan 20 |
| 50% (the "average" last frost) | Feb 9 |
| 10% (cautious: only 1 year in 10 freezes later) | Mar 4 |
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) | Nov 21 |
| 50% (the "average" first frost) | Dec 5 |
| 90% (late: most years have frozen by now) | Dec 23 |
Light frost, freeze and hard freeze
| Threshold | Last spring (50%) | First fall (50%) |
|---|---|---|
| 36°F (light frost possible on clear, calm nights) | Mar 3 | Nov 23 |
| 32°F (freeze) | Feb 9 | Dec 5 |
| 28°F (hard freeze) | Jan 22 | Dec 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 86023
Dates count from your average last spring frost (Feb 9) and first fall frost (Dec 5). 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 | Dec 15–29 | Feb 16–Mar 2 (transplant) | Aug 8–Sep 5 (transplant) |
| Pepper (sweet and hot) | Dec 1–15 | Feb 23–Mar 9 (transplant) | Aug 15–Sep 5 (transplant) |
| Eggplant | Dec 1–15 | Feb 23–Mar 9 (transplant) | Aug 15–Sep 5 (transplant) |
| Tomatillo | Dec 15–29 | Feb 16–Mar 2 (transplant) | – |
| Lettuce | Dec 15–29 | Jan 19–Feb 9 (transplant) Jan 12–Feb 23 (sow outdoors) | Oct 10–31 (transplant) Sep 26–Oct 24 (sowing) |
| Spinach | – | Dec 29–Jan 19 (sow outdoors) | Oct 10–31 (sowing) |
| Kale | Dec 15–29 | Jan 12–26 (transplant) Jan 12–26 (sow outdoors) | Sep 12–Oct 10 (transplant) Aug 29–Sep 26 (sowing) |
| Collards | Dec 15–29 | Jan 12–Feb 9 (transplant) Jan 12–Feb 9 (sow outdoors) | Sep 12–Oct 10 (transplant) Aug 29–Sep 26 (sowing) |
| Broccoli | Dec 1–15 | Jan 12–26 (transplant) | Aug 29–Sep 26 (transplant) |
| Cabbage | Dec 1–15 | Jan 12–26 (transplant) | Aug 29–Sep 26 (transplant) |
| Cauliflower | Dec 1–15 | Jan 26–Feb 9 (transplant) | Aug 29–Sep 26 (transplant) |
| Brussels sprouts | Nov 17–Dec 1 | Jan 12–26 (transplant) | Aug 15–Sep 5 (transplant) |
| Kohlrabi | Dec 15–29 | Jan 12–26 (transplant) Jan 12–26 (sow outdoors) | Sep 26–Oct 10 (sowing) |
| Bok choy / Asian greens | – | Jan 12–26 (sow outdoors) | Oct 10–24 (sowing) |
| Arugula | – | Jan 12–Feb 9 (sow outdoors) | Oct 10–Nov 7 (sowing) |
| Mustard greens | – | Jan 12–Feb 2 (sow outdoors) | Oct 10–24 (sowing) |
| Swiss chard | Dec 29–Jan 12 | Jan 26–Feb 16 (transplant) Jan 26–Feb 23 (sow outdoors) | Sep 26–Oct 10 (sowing) |
| Beet | – | Jan 12–Feb 9 (sow outdoors) | Sep 26–Oct 10 (sowing) |
| Carrot | – | Jan 19–Feb 16 (sow outdoors) | Sep 12–26 (sowing) |
| Radish | – | Jan 5–Feb 16 (sow outdoors) | Oct 24–Nov 7 (sowing) |
| Turnip | – | Jan 12–Feb 2 (sow outdoors) | Sep 26–Oct 10 (sowing) |
| Parsnip | – | Jan 19–Feb 9 (sow outdoors) | – |
| Pea (garden, snap, snow) | – | Dec 15–Jan 12 (sow outdoors) | Sep 12–26 (sowing) |
| Onion (bulbing) | Nov 17–Dec 1 | Dec 29–Jan 12 (transplant) | – |
| Green onion / scallion | – | Dec 29–Jan 26 (sow outdoors) | Sep 26–Oct 10 (sowing) |
| Leek | Nov 17–Dec 1 | Jan 12–26 (transplant) | – |
| Garlic | – | – | Oct 24–Nov 21 (sowing) |
| Shallot | – | Dec 29–Jan 12 (transplant) | Oct 24–Nov 21 (sowing) |
| Potato | – | Jan 12–26 (transplant) | Aug 15–29 (transplant) |
| Sweet potato | – | Mar 2–16 (transplant) | – |
| Sweet corn | – | Feb 16–Mar 2 (sow outdoors) | – |
| Bean, bush (snap) | – | Feb 16–Mar 2 (sow outdoors) | Sep 12–26 (sowing) |
| Bean, pole | – | Feb 16–Mar 2 (sow outdoors) | – |
| Lima bean | – | Feb 23–Mar 9 (sow outdoors) | – |
| Southern pea (cowpea, black-eyed pea) | – | Mar 2–23 (sow outdoors) | – |
| Cucumber | Jan 12–19 | Feb 16–Mar 2 (transplant) Feb 16–Mar 2 (sow outdoors) | Sep 12–26 (sowing) |
| Summer squash / zucchini | Jan 12–19 | Feb 16–Mar 2 (transplant) Feb 16–Mar 2 (sow outdoors) | Sep 12–26 (sowing) |
| Winter squash | Jan 12–19 | Feb 16–Mar 2 (transplant) Feb 16–Mar 2 (sow outdoors) | – |
| Pumpkin | – | Feb 16–Mar 2 (sow outdoors) | – |
| Watermelon | Jan 12–19 | Feb 23–Mar 9 (transplant) Feb 23–Mar 9 (sow outdoors) | – |
| Cantaloupe / muskmelon | Jan 12–19 | Feb 23–Mar 9 (transplant) Feb 23–Mar 9 (sow outdoors) | – |
| Okra | Dec 29–Jan 12 | Feb 23–Mar 9 (transplant) Feb 23–Mar 9 (sow outdoors) | – |
| Celery | Nov 17–Dec 1 | Feb 16–23 (transplant) | – |
| Basil | Dec 29–Jan 12 | Feb 16–Mar 2 (transplant) Feb 16–Mar 2 (sow outdoors) | – |
| Cilantro | – | Jan 26–Feb 23 (sow outdoors) | Oct 10–24 (sowing) |
| Parsley | Dec 1–15 | Jan 26–Feb 9 (transplant) Jan 19–Feb 9 (sow outdoors) | – |
| Dill | – | Feb 9–23 (sow outdoors) | Oct 10–24 (sowing) |
| Sunflower | – | Feb 9–23 (sow outdoors) | – |
| Asparagus (crowns) | – | Jan 12–26 (transplant) | – |
| Rhubarb (crowns) | – | Jan 12–26 (transplant) | – |
| Strawberry (plants) | – | Jan 12–26 (transplant) | Sep 26–Oct 24 (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: Phantom Rch, AZ (NOAA GHCN-Daily ID USC00026471), elevation 2,530 ft, 6.0 miles from the ZIP's center point. NOAA completeness flag: S (standard, 24+ years).
Nearby stations
| Station | Distance | Last frost (50%) | First frost (50%) |
|---|---|---|---|
| Grand Canyon Visitor Ctr, AZ | 5 mi | May 2 | Oct 27 |
| Grand Canyon Np 2, AZ | 8 mi | Jun 1 | Oct 3 |
| Grand Canyon E Entrance, AZ | 10 mi | May 10 | Oct 20 |
The average last-frost dates of these stations span 116 days, a rough guide to local variation. See data sources & methods.
Frost questions for 86023
When is the last frost in 86023?
The average (50% chance) last spring freeze of 32°F for ZIP 86023 is February 9. For a more cautious planting date, use March 4, when only 1 year in 10 still sees a later freeze.
When is the first frost in 86023?
The average first fall freeze is December 5. In 1 year in 10 it comes by November 21.
What hardiness zone is 86023?
ZIP 86023 is in USDA zone 7a (0 to 5°F average coldest winter night), per the 2023 USDA Plant Hardiness Zone Map ZIP listing.
What is the soil temperature in 86023 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
86052 86020 Cameron 86016 86046 Valle 86001 Fort Valley 86045 Tuba City 86435 Supai 86036
Other ZIP codes in Coconino County
85931 86001 86003 86004 86005 86011 86015 86016 86017 86018 86020 86022 86024 86030 86035 86036 86038 86040 86044 86045 86046 86052 86053 86320 All Coconino County frost dates · Arizona 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.