Fall in zone 10aPhoto: George Chernilevsky, Public domain, via Wikimedia Commons
Frost dates for ZIP 85367 (Fortuna Foothills, 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, Yuma Proving Ground, AZ (12 miles away).
Freezes are uncommon here
NOAA's normals for this station show a 32°F night in about 57% of years (about 2 freezing night(s) a year on average). The dates below describe freeze timing for the station's record; in many years there may be no 32°F freeze at all.
- Average last spring frostJan 450% chance of a 32°F freeze after this date
- Average first fall frostDec 2550% chance of a 32°F freeze by this date
- Growing season (frost-free)361 daysmedian, 32°F threshold
- USDA hardiness zone10a30 to 35°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
Freezes are uncommon here, so frost-based timing is rough. Local extension calendars for frost-free areas use months.
Soil temperature now
2-inch depth
81°F 55°F or warmer
24-hour average · latest 77°F, as of Oct 18, 1:00 AM CDT
Estimate Not a measurement at this ZIP: distance-weighted average of Yuma 27 ENE (17 mi).
4-inch depth
84°F 55°F or warmer
24-hour average · latest 84°F, as of Oct 18, 1:00 AM CDT
Estimate Not a measurement at this ZIP: distance-weighted average of Yuma 27 ENE (17 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 85367 load here. You can also open the NWS forecast for this ZIP.
Pre-emergent
Soil is 84°F at 4 inches (estimated soil temperature, not a station reading). Fall pre-emergent (annual bluegrass, winter weeds): not yet. Apply as soil cools toward 70°F (typically September to October).
Fertilizer window
Lawn region: Arid Southwest (low desert). Timing only; always follow the product label.
- Bermudagrass (warm-season): Spring: Several weeks after the lawn is fully green (April–May) (about Feb 19 here, using green-up about 3–4 weeks after your average last frost); Summer: Every 4–6 weeks through mid-August (heaviest feeder of the group); Late: Light, low-nitrogen/high-potassium feeding about 4 weeks before first frost, or skip. Avoid: Heavy late-fall nitrogen (linked to spring dead spot).
- Perennial ryegrass (cool-season): Early fall: September; Late fall: October–November; Overseeded Bermuda: Light feeding once the winter rye is established, if needed. Avoid: Summer feeding.
Plant now
- Lettuce: fall sowing Oct 16–Nov 13
- Kale: fall transplant Oct 2–30
- Collards: fall transplant Oct 2–30
- Brussels sprouts: start seeds indoors Oct 12–26
- Kohlrabi: fall sowing Oct 16–30
- Swiss chard: fall sowing Oct 16–30
- Beet: fall sowing Oct 16–30
- Turnip: fall sowing Oct 16–30
- Onion (bulbing): start seeds indoors Oct 12–26
- Green onion / scallion: fall sowing Oct 16–30
- Leek: start seeds indoors Oct 12–26
- Celery: start seeds indoors Oct 12–26
- Strawberry (plants): fall transplant Oct 16–Nov 13
Coming up in the next 3 weeks
- Pepper (sweet and hot): start seeds indoors Oct 26–Nov 9
- Eggplant: start seeds indoors Oct 26–Nov 9
- Lettuce: fall transplant Oct 30–Nov 20
- Spinach: fall sowing Oct 30–Nov 20
- Broccoli: start seeds indoors Oct 26–Nov 9
- Cabbage: start seeds indoors Oct 26–Nov 9
- Cauliflower: start seeds indoors Oct 26–Nov 9
- Bok choy / Asian greens: fall sowing Oct 30–Nov 13
- Arugula: fall sowing Oct 30–Nov 27
- Mustard greens: fall sowing Oct 30–Nov 13
- Cilantro: fall sowing Oct 30–Nov 13
- Parsley: start seeds indoors Oct 26–Nov 9
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) | Dec 11 (prior Dec) |
| 50% (the "average" last frost) | Jan 4 |
| 10% (cautious: only 1 year in 10 freezes later) | Feb 9 |
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) | Dec 3 |
| 50% (the "average" first frost) | Dec 25 |
| 90% (late: most years have frozen by now) | Jan 25 (next year) |
Light frost, freeze and hard freeze
| Threshold | Last spring (50%) | First fall (50%) |
|---|---|---|
| 36°F (light frost possible on clear, calm nights) | Jan 18 | Dec 13 |
| 32°F (freeze) | Jan 4 | Dec 25 |
| 28°F (hard freeze) | Jan 9 | Jan 9 (next year) |
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 85367
Dates count from your average last spring frost (Jan 4) and first fall frost (Dec 25). 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 | Nov 9–23 | Jan 11–25 (transplant) | Aug 28–Sep 25 (transplant) |
| Pepper (sweet and hot) | Oct 26–Nov 9 | Jan 18–Feb 1 (transplant) | Sep 4–25 (transplant) |
| Eggplant | Oct 26–Nov 9 | Jan 18–Feb 1 (transplant) | Sep 4–25 (transplant) |
| Tomatillo | Nov 9–23 | Jan 11–25 (transplant) | – |
| Lettuce | Nov 9–23 | Dec 14–Jan 4 (transplant) Dec 7–Jan 18 (sow outdoors) | Oct 30–Nov 20 (transplant) Oct 16–Nov 13 (sowing) |
| Spinach | – | Nov 23–Dec 14 (sow outdoors) | Oct 30–Nov 20 (sowing) |
| Kale | Nov 9–23 | Dec 7–21 (transplant) Dec 7–21 (sow outdoors) | Oct 2–30 (transplant) Sep 18–Oct 16 (sowing) |
| Collards | Nov 9–23 | Dec 7–Jan 4 (transplant) Dec 7–Jan 4 (sow outdoors) | Oct 2–30 (transplant) Sep 18–Oct 16 (sowing) |
| Broccoli | Oct 26–Nov 9 | Dec 7–21 (transplant) | Sep 18–Oct 16 (transplant) |
| Cabbage | Oct 26–Nov 9 | Dec 7–21 (transplant) | Sep 18–Oct 16 (transplant) |
| Cauliflower | Oct 26–Nov 9 | Dec 21–Jan 4 (transplant) | Sep 18–Oct 16 (transplant) |
| Brussels sprouts | Oct 12–26 | Dec 7–21 (transplant) | Sep 4–25 (transplant) |
| Kohlrabi | Nov 9–23 | Dec 7–21 (transplant) Dec 7–21 (sow outdoors) | Oct 16–30 (sowing) |
| Bok choy / Asian greens | – | Dec 7–21 (sow outdoors) | Oct 30–Nov 13 (sowing) |
| Arugula | – | Dec 7–Jan 4 (sow outdoors) | Oct 30–Nov 27 (sowing) |
| Mustard greens | – | Dec 7–28 (sow outdoors) | Oct 30–Nov 13 (sowing) |
| Swiss chard | Nov 23–Dec 7 | Dec 21–Jan 11 (transplant) Dec 21–Jan 18 (sow outdoors) | Oct 16–30 (sowing) |
| Beet | – | Dec 7–Jan 4 (sow outdoors) | Oct 16–30 (sowing) |
| Carrot | – | Dec 14–Jan 11 (sow outdoors) | Oct 2–16 (sowing) |
| Radish | – | Nov 30–Jan 11 (sow outdoors) | Nov 13–27 (sowing) |
| Turnip | – | Dec 7–28 (sow outdoors) | Oct 16–30 (sowing) |
| Parsnip | – | Dec 14–Jan 4 (sow outdoors) | – |
| Pea (garden, snap, snow) | – | Nov 9–Dec 7 (sow outdoors) | Oct 2–16 (sowing) |
| Onion (bulbing) | Oct 12–26 | Nov 23–Dec 7 (transplant) | – |
| Green onion / scallion | – | Nov 23–Dec 21 (sow outdoors) | Oct 16–30 (sowing) |
| Leek | Oct 12–26 | Dec 7–21 (transplant) | – |
| Garlic | – | – | Nov 13–Dec 11 (sowing) |
| Shallot | – | Nov 23–Dec 7 (transplant) | Nov 13–Dec 11 (sowing) |
| Potato | – | Dec 7–21 (transplant) | Sep 4–18 (transplant) |
| Sweet potato | – | Jan 25–Feb 8 (transplant) | – |
| Sweet corn | – | Jan 11–25 (sow outdoors) | – |
| Bean, bush (snap) | – | Jan 11–25 (sow outdoors) | Oct 2–16 (sowing) |
| Bean, pole | – | Jan 11–25 (sow outdoors) | – |
| Lima bean | – | Jan 18–Feb 1 (sow outdoors) | – |
| Southern pea (cowpea, black-eyed pea) | – | Jan 25–Feb 15 (sow outdoors) | – |
| Cucumber | Dec 7–14 | Jan 11–25 (transplant) Jan 11–25 (sow outdoors) | Oct 2–16 (sowing) |
| Summer squash / zucchini | Dec 7–14 | Jan 11–25 (transplant) Jan 11–25 (sow outdoors) | Oct 2–16 (sowing) |
| Winter squash | Dec 7–14 | Jan 11–25 (transplant) Jan 11–25 (sow outdoors) | – |
| Pumpkin | – | Jan 11–25 (sow outdoors) | – |
| Watermelon | Dec 7–14 | Jan 18–Feb 1 (transplant) Jan 18–Feb 1 (sow outdoors) | – |
| Cantaloupe / muskmelon | Dec 7–14 | Jan 18–Feb 1 (transplant) Jan 18–Feb 1 (sow outdoors) | – |
| Okra | Nov 23–Dec 7 | Jan 18–Feb 1 (transplant) Jan 18–Feb 1 (sow outdoors) | – |
| Celery | Oct 12–26 | Jan 11–18 (transplant) | – |
| Basil | Nov 23–Dec 7 | Jan 11–25 (transplant) Jan 11–25 (sow outdoors) | – |
| Cilantro | – | Dec 21–Jan 18 (sow outdoors) | Oct 30–Nov 13 (sowing) |
| Parsley | Oct 26–Nov 9 | Dec 21–Jan 4 (transplant) Dec 14–Jan 4 (sow outdoors) | – |
| Dill | – | Jan 4–18 (sow outdoors) | Oct 30–Nov 13 (sowing) |
| Sunflower | – | Jan 4–18 (sow outdoors) | – |
| Asparagus (crowns) | – | Dec 7–21 (transplant) | – |
| Rhubarb (crowns) | – | Dec 7–21 (transplant) | – |
| Strawberry (plants) | – | Dec 7–21 (transplant) | Oct 16–Nov 13 (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: Yuma Proving Ground, AZ (NOAA GHCN-Daily ID USW00003125), elevation 324 ft, 12.1 miles from the ZIP's center point. NOAA completeness flag: S (standard, 24+ years).
Nearby stations
| Station | Distance | Last frost (50%) | First frost (50%) |
|---|---|---|---|
| Yuma Quartermaster Depot, AZ | 14 mi | Jan 8 | Dec 28 |
| Yuma 27 ENE, AZ | 17 mi | Jan 11 | Dec 21 |
| Tacna 3 NE, AZ | 28 mi | Feb 13 | Dec 1 |
The average last-frost dates of these stations span 40 days, a rough guide to local variation. See data sources & methods.
Frost questions for 85367
When is the last frost in 85367?
The average (50% chance) last spring freeze of 32°F for ZIP 85367 is January 4. For a more cautious planting date, use February 9, when only 1 year in 10 still sees a later freeze.
When is the first frost in 85367?
The average first fall freeze is December 25. In 1 year in 10 it comes by December 3.
What hardiness zone is 85367?
ZIP 85367 is in USDA zone 10a (30 to 35°F average coldest winter night), per the 2023 USDA Plant Hardiness Zone Map ZIP listing.
What is the soil temperature in 85367 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
85356 Wellton 92222 85364 Yuma 85350 San Luis 85349 San Luis 85336 San Luis 92283 Winterhaven 85352 Tacna
Other ZIP codes in Yuma County
85336 85347 85349 85350 85352 85356 85364 85365 All Yuma 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.