Fall in zone 7aPhoto: Dietmar Rabich, CC BY-SA 4.0, via Wikimedia Commons
Frost dates for ZIP 86024 (Blue Ridge, 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, Blue Ridge Rs, AZ (4 miles away).
- Average last spring frostMay 3150% chance of a 32°F freeze after this date
- Average first fall frostOct 250% chance of a 32°F freeze by this date
- Growing season (frost-free)126 daysmedian, 32°F threshold
- USDA hardiness zone7a0 to 5°F avg. coldest night
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Frost and freeze alerts from the NWS forecast for 86024, the spring soil-temperature heads-up for pre-emergent, and a short weekly yard-timing email.
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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 86024 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 13 |
| 50% (the "average" last frost) | May 31 |
| 10% (cautious: only 1 year in 10 freezes later) | Jun 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) | Sep 22 |
| 50% (the "average" first frost) | Oct 2 |
| 90% (late: most years have frozen by now) | Oct 15 |
Light frost, freeze and hard freeze
| Threshold | Last spring (50%) | First fall (50%) |
|---|---|---|
| 36°F (light frost possible on clear, calm nights) | Jun 9 | Sep 24 |
| 32°F (freeze) | May 31 | Oct 2 |
| 28°F (hard freeze) | May 13 | Oct 12 |
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 86024
Dates count from your average last spring frost (May 31) and first fall frost (Oct 2). 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 5–19 | Jun 7–21 (transplant) | – |
| Pepper (sweet and hot) | Mar 22–Apr 5 | Jun 14–28 (transplant) | – |
| Eggplant | Mar 22–Apr 5 | Jun 14–28 (transplant) | – |
| Tomatillo | Apr 5–19 | Jun 7–21 (transplant) | – |
| Lettuce | Apr 5–19 | May 10–31 (transplant) May 3–Jun 14 (sow outdoors) | Aug 7–28 (transplant) Jul 24–Aug 21 (sowing) |
| Spinach | – | Apr 19–May 10 (sow outdoors) | Aug 7–28 (sowing) |
| Kale | Apr 5–19 | May 3–17 (transplant) May 3–17 (sow outdoors) | Jul 10–Aug 7 (transplant) Jun 26–Jul 24 (sowing) |
| Collards | Apr 5–19 | May 3–31 (transplant) May 3–31 (sow outdoors) | Jul 10–Aug 7 (transplant) Jun 26–Jul 24 (sowing) |
| Broccoli | Mar 22–Apr 5 | May 3–17 (transplant) | Jun 26–Jul 24 (transplant) |
| Cabbage | Mar 22–Apr 5 | May 3–17 (transplant) | Jun 26–Jul 24 (transplant) |
| Cauliflower | Mar 22–Apr 5 | May 17–31 (transplant) | Jun 26–Jul 24 (transplant) |
| Brussels sprouts | Mar 8–22 | May 3–17 (transplant) | Jun 12–Jul 3 (transplant) |
| Kohlrabi | Apr 5–19 | May 3–17 (transplant) May 3–17 (sow outdoors) | Jul 24–Aug 7 (sowing) |
| Bok choy / Asian greens | – | May 3–17 (sow outdoors) | Aug 7–21 (sowing) |
| Arugula | – | May 3–31 (sow outdoors) | Aug 7–Sep 4 (sowing) |
| Mustard greens | – | May 3–24 (sow outdoors) | Aug 7–21 (sowing) |
| Swiss chard | Apr 19–May 3 | May 17–Jun 7 (transplant) May 17–Jun 14 (sow outdoors) | Jul 24–Aug 7 (sowing) |
| Beet | – | May 3–31 (sow outdoors) | Jul 24–Aug 7 (sowing) |
| Carrot | – | May 10–Jun 7 (sow outdoors) | Jul 10–24 (sowing) |
| Radish | – | Apr 26–Jun 7 (sow outdoors) | Aug 21–Sep 4 (sowing) |
| Turnip | – | May 3–24 (sow outdoors) | Jul 24–Aug 7 (sowing) |
| Parsnip | – | May 10–31 (sow outdoors) | – |
| Pea (garden, snap, snow) | – | Apr 5–May 3 (sow outdoors) | Jul 10–24 (sowing) |
| Onion (bulbing) | Mar 8–22 | Apr 19–May 3 (transplant) | – |
| Green onion / scallion | – | Apr 19–May 17 (sow outdoors) | Jul 24–Aug 7 (sowing) |
| Leek | Mar 8–22 | May 3–17 (transplant) | – |
| Garlic | – | – | Aug 21–Sep 18 (sowing) |
| Shallot | – | Apr 19–May 3 (transplant) | Aug 21–Sep 18 (sowing) |
| Potato | – | May 3–17 (transplant) | Jun 12–26 (transplant) |
| Sweet potato | – | Jun 21–Jul 5 (transplant) | – |
| Sweet corn | – | Jun 7–21 (sow outdoors) | – |
| Bean, bush (snap) | – | Jun 7–21 (sow outdoors) | – |
| Bean, pole | – | Jun 7–21 (sow outdoors) | – |
| Lima bean | – | Jun 14–28 (sow outdoors) | – |
| Southern pea (cowpea, black-eyed pea) | – | Jun 21–Jul 12 (sow outdoors) | – |
| Cucumber | May 3–10 | Jun 7–21 (transplant) Jun 7–21 (sow outdoors) | – |
| Summer squash / zucchini | May 3–10 | Jun 7–21 (transplant) Jun 7–21 (sow outdoors) | – |
| Winter squash | May 3–10 | Jun 7–21 (transplant) Jun 7–21 (sow outdoors) | – |
| Pumpkin | – | Jun 7–21 (sow outdoors) | – |
| Watermelon | May 3–10 | Jun 14–28 (transplant) Jun 14–28 (sow outdoors) | – |
| Cantaloupe / muskmelon | May 3–10 | Jun 14–28 (transplant) Jun 14–28 (sow outdoors) | – |
| Okra | Apr 19–May 3 | Jun 14–28 (transplant) Jun 14–28 (sow outdoors) | – |
| Celery | Mar 8–22 | Jun 7–14 (transplant) | – |
| Basil | Apr 19–May 3 | Jun 7–21 (transplant) Jun 7–21 (sow outdoors) | – |
| Cilantro | – | May 17–Jun 14 (sow outdoors) | Aug 7–21 (sowing) |
| Parsley | Mar 22–Apr 5 | May 17–31 (transplant) May 10–31 (sow outdoors) | – |
| Dill | – | May 31–Jun 14 (sow outdoors) | Aug 7–21 (sowing) |
| Sunflower | – | May 31–Jun 14 (sow outdoors) | – |
| Asparagus (crowns) | – | May 3–17 (transplant) | – |
| Rhubarb (crowns) | – | May 3–17 (transplant) | – |
| Strawberry (plants) | – | May 3–17 (transplant) | Jul 24–Aug 21 (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: Blue Ridge Rs, AZ (NOAA GHCN-Daily ID USC00020871), elevation 6,880 ft, 4.2 miles from the ZIP's center point. NOAA completeness flag: R (representative, 10+ years).
Nearby stations
| Station | Distance | Last frost (50%) | First frost (50%) |
|---|---|---|---|
| Happy Jack Rs, AZ | 14 mi | Jun 1 | Oct 3 |
| Meteor Crater, AZ | 27 mi | Apr 30 | Oct 23 |
| Natural Brg, AZ | 28 mi | Apr 9 | Nov 10 |
The average last-frost dates of these stations span 54 days, a rough guide to local variation. See data sources & methods.
Frost questions for 86024
When is the last frost in 86024?
The average (50% chance) last spring freeze of 32°F for ZIP 86024 is May 31. For a more cautious planting date, use June 12, when only 1 year in 10 still sees a later freeze.
When is the first frost in 86024?
The average first fall freeze is October 2. In 1 year in 10 it comes by September 22.
What hardiness zone is 86024?
ZIP 86024 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 86024 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
86038 Mormon Lake 85544 Pine 85931 Forest Lakes 86335 Lake Montezuma 85541 Star Valley 86017 Munds Park 86351 Village of Oak Creek (Big Park) 85928
Other ZIP codes in Coconino County
85931 86001 86003 86004 86005 86011 86015 86016 86017 86018 86020 86022 86023 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
- Soil-temp heads-up
- Weekly yard to-dos
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.