Fall in zone 6aPhoto: Dietmar Rabich, CC BY-SA 4.0, via Wikimedia Commons
Frost dates for ZIP 84326 (Millville, 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, Logan 5 SW EXP Farm, UT (4 miles away).
- Average last spring frostMay 1250% chance of a 32°F freeze after this date
- Average first fall frostSep 2850% chance of a 32°F freeze by this date
- Growing season (frost-free)138 daysmedian, 32°F threshold
- USDA hardiness zone6a-10 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
50°F Below 50°F
24-hour average · latest 49°F, as of Oct 18, 2:00 AM CDT
Measured at USDA NRCS SCAN station Cache Junction, 13 mi away. Daily averages: Thu 51°, Fri 51°, Sat 50°.
4-inch depth
52°F 50–55°F
24-hour average · latest 51°F, as of Oct 18, 2:00 AM CDT
Measured at USDA NRCS SCAN station Cache Junction, 13 mi away. Daily averages: Thu 53°, Fri 52°, Sat 52°.
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 84326 load here. You can also open the NWS forecast for this ZIP.
Pre-emergent
Soil is 52°F at 4 inches. 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
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) | Apr 30 |
| 50% (the "average" last frost) | May 12 |
| 10% (cautious: only 1 year in 10 freezes later) | May 29 |
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 14 |
| 50% (the "average" first frost) | Sep 28 |
| 90% (late: most years have frozen by now) | Oct 12 |
Light frost, freeze and hard freeze
| Threshold | Last spring (50%) | First fall (50%) |
|---|---|---|
| 36°F (light frost possible on clear, calm nights) | May 31 | Sep 18 |
| 32°F (freeze) | May 12 | Sep 28 |
| 28°F (hard freeze) | Apr 28 | Oct 9 |
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 84326
Dates count from your average last spring frost (May 12) and first fall frost (Sep 28). 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 | Mar 17–31 | May 19–Jun 2 (transplant) | – |
| Pepper (sweet and hot) | Mar 3–17 | May 26–Jun 9 (transplant) | – |
| Eggplant | Mar 3–17 | May 26–Jun 9 (transplant) | – |
| Tomatillo | Mar 17–31 | May 19–Jun 2 (transplant) | – |
| Lettuce | Mar 17–31 | Apr 21–May 12 (transplant) Apr 14–May 26 (sow outdoors) | Aug 3–24 (transplant) Jul 20–Aug 17 (sowing) |
| Spinach | – | Mar 31–Apr 21 (sow outdoors) | Aug 3–24 (sowing) |
| Kale | Mar 17–31 | Apr 14–28 (transplant) Apr 14–28 (sow outdoors) | Jul 6–Aug 3 (transplant) Jun 22–Jul 20 (sowing) |
| Collards | Mar 17–31 | Apr 14–May 12 (transplant) Apr 14–May 12 (sow outdoors) | Jul 6–Aug 3 (transplant) Jun 22–Jul 20 (sowing) |
| Broccoli | Mar 3–17 | Apr 14–28 (transplant) | Jun 22–Jul 20 (transplant) |
| Cabbage | Mar 3–17 | Apr 14–28 (transplant) | Jun 22–Jul 20 (transplant) |
| Cauliflower | Mar 3–17 | Apr 28–May 12 (transplant) | Jun 22–Jul 20 (transplant) |
| Brussels sprouts | Feb 17–Mar 3 | Apr 14–28 (transplant) | Jun 8–29 (transplant) |
| Kohlrabi | Mar 17–31 | Apr 14–28 (transplant) Apr 14–28 (sow outdoors) | Jul 20–Aug 3 (sowing) |
| Bok choy / Asian greens | – | Apr 14–28 (sow outdoors) | Aug 3–17 (sowing) |
| Arugula | – | Apr 14–May 12 (sow outdoors) | Aug 3–31 (sowing) |
| Mustard greens | – | Apr 14–May 5 (sow outdoors) | Aug 3–17 (sowing) |
| Swiss chard | Mar 31–Apr 14 | Apr 28–May 19 (transplant) Apr 28–May 26 (sow outdoors) | Jul 20–Aug 3 (sowing) |
| Beet | – | Apr 14–May 12 (sow outdoors) | Jul 20–Aug 3 (sowing) |
| Carrot | – | Apr 21–May 19 (sow outdoors) | Jul 6–20 (sowing) |
| Radish | – | Apr 7–May 19 (sow outdoors) | Aug 17–31 (sowing) |
| Turnip | – | Apr 14–May 5 (sow outdoors) | Jul 20–Aug 3 (sowing) |
| Parsnip | – | Apr 21–May 12 (sow outdoors) | – |
| Pea (garden, snap, snow) | – | Mar 17–Apr 14 (sow outdoors) | Jul 6–20 (sowing) |
| Onion (bulbing) | Feb 17–Mar 3 | Mar 31–Apr 14 (transplant) | – |
| Green onion / scallion | – | Mar 31–Apr 28 (sow outdoors) | Jul 20–Aug 3 (sowing) |
| Leek | Feb 17–Mar 3 | Apr 14–28 (transplant) | – |
| Garlic | – | – | Aug 17–Sep 14 (sowing) |
| Shallot | – | Mar 31–Apr 14 (transplant) | Aug 17–Sep 14 (sowing) |
| Potato | – | Apr 14–28 (transplant) | Jun 8–22 (transplant) |
| Sweet potato | – | Jun 2–16 (transplant) | – |
| Sweet corn | – | May 19–Jun 2 (sow outdoors) | – |
| Bean, bush (snap) | – | May 19–Jun 2 (sow outdoors) | – |
| Bean, pole | – | May 19–Jun 2 (sow outdoors) | – |
| Lima bean | – | May 26–Jun 9 (sow outdoors) | – |
| Southern pea (cowpea, black-eyed pea) | – | Jun 2–23 (sow outdoors) | – |
| Cucumber | Apr 14–21 | May 19–Jun 2 (transplant) May 19–Jun 2 (sow outdoors) | – |
| Summer squash / zucchini | Apr 14–21 | May 19–Jun 2 (transplant) May 19–Jun 2 (sow outdoors) | – |
| Winter squash | Apr 14–21 | May 19–Jun 2 (transplant) May 19–Jun 2 (sow outdoors) | – |
| Pumpkin | – | May 19–Jun 2 (sow outdoors) | – |
| Watermelon | Apr 14–21 | May 26–Jun 9 (transplant) May 26–Jun 9 (sow outdoors) | – |
| Cantaloupe / muskmelon | Apr 14–21 | May 26–Jun 9 (transplant) May 26–Jun 9 (sow outdoors) | – |
| Okra | Mar 31–Apr 14 | May 26–Jun 9 (transplant) May 26–Jun 9 (sow outdoors) | – |
| Celery | Feb 17–Mar 3 | May 19–26 (transplant) | – |
| Basil | Mar 31–Apr 14 | May 19–Jun 2 (transplant) May 19–Jun 2 (sow outdoors) | – |
| Cilantro | – | Apr 28–May 26 (sow outdoors) | Aug 3–17 (sowing) |
| Parsley | Mar 3–17 | Apr 28–May 12 (transplant) Apr 21–May 12 (sow outdoors) | – |
| Dill | – | May 12–26 (sow outdoors) | Aug 3–17 (sowing) |
| Sunflower | – | May 12–26 (sow outdoors) | – |
| Asparagus (crowns) | – | Apr 14–28 (transplant) | – |
| Rhubarb (crowns) | – | Apr 14–28 (transplant) | – |
| Strawberry (plants) | – | Apr 14–28 (transplant) | Jul 20–Aug 17 (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: Logan 5 SW EXP Farm, UT (NOAA GHCN-Daily ID USC00425194), elevation 4,488 ft, 3.9 miles from the ZIP's center point. NOAA completeness flag: R (representative, 10+ years).
Nearby stations
| Station | Distance | Last frost (50%) | First frost (50%) |
|---|---|---|---|
| Logan Radio Kvnu, UT | 5 mi | May 8 | Oct 2 |
| Logan Utah St Univ, UT | 5 mi | Apr 30 | Oct 16 |
| Logan Cache AP, UT | 8 mi | May 8 | Oct 2 |
The average last-frost dates of these stations span 13 days, a rough guide to local variation. See data sources & methods.
Frost questions for 84326
When is the last frost in 84326?
The average (50% chance) last spring freeze of 32°F for ZIP 84326 is May 12. For a more cautious planting date, use May 29, when only 1 year in 10 still sees a later freeze.
When is the first frost in 84326?
The average first fall freeze is September 28. In 1 year in 10 it comes by September 14.
What hardiness zone is 84326?
ZIP 84326 is in USDA zone 6a (-10 to -5°F average coldest winter night), per the 2023 USDA Plant Hardiness Zone Map ZIP listing.
What is the soil temperature in 84326 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
84332 Providence 84322 Logan 84341 North Logan 84339 Wellsville 84321 Logan 84318 Hyde Park 84328 Avon 84319 Hyrum
Other ZIP codes in Cache County
84304 84305 84308 84318 84319 84320 84321 84322 84325 84327 84328 84332 84333 84335 84338 84339 84341 All Cache County frost dates · Utah frost dates
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