Frost dates for ZIP 99644 (Ouzinkie, AK)
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, Ouzinkie, AK (4 miles away).
- Average last spring frostMay 950% chance of a 32°F freeze after this date
- Average first fall frostOct 450% chance of a 32°F freeze by this date
- Growing season (frost-free)148 daysmedian, 32°F threshold
- USDA hardiness zone7b5 to 10°F avg. coldest night
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This week in your yard
As of Oct 17, 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 99644 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 early May.
Fertilizer window
Lawn region: North (cool-season). 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 22 |
| 50% (the "average" last frost) | May 9 |
| 10% (cautious: only 1 year in 10 freezes later) | May 23 |
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 4 |
| 90% (late: most years have frozen by now) | Oct 20 |
Light frost, freeze and hard freeze
| Threshold | Last spring (50%) | First fall (50%) |
|---|---|---|
| 36°F (light frost possible on clear, calm nights) | May 28 | Sep 22 |
| 32°F (freeze) | May 9 | Oct 4 |
| 28°F (hard freeze) | Apr 18 | Oct 19 |
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 99644
Dates count from your average last spring frost (May 9) and first fall frost (Oct 4). 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 14–28 | May 16–30 (transplant) | – |
| Pepper (sweet and hot) | Feb 28–Mar 14 | May 23–Jun 6 (transplant) | – |
| Eggplant | Feb 28–Mar 14 | May 23–Jun 6 (transplant) | – |
| Tomatillo | Mar 14–28 | May 16–30 (transplant) | – |
| Lettuce | Mar 14–28 | Apr 18–May 9 (transplant) Apr 11–May 23 (sow outdoors) | Aug 9–30 (transplant) Jul 26–Aug 23 (sowing) |
| Spinach | – | Mar 28–Apr 18 (sow outdoors) | Aug 9–30 (sowing) |
| Kale | Mar 14–28 | Apr 11–25 (transplant) Apr 11–25 (sow outdoors) | Jul 12–Aug 9 (transplant) Jun 28–Jul 26 (sowing) |
| Collards | Mar 14–28 | Apr 11–May 9 (transplant) Apr 11–May 9 (sow outdoors) | Jul 12–Aug 9 (transplant) Jun 28–Jul 26 (sowing) |
| Broccoli | Feb 28–Mar 14 | Apr 11–25 (transplant) | Jun 28–Jul 26 (transplant) |
| Cabbage | Feb 28–Mar 14 | Apr 11–25 (transplant) | Jun 28–Jul 26 (transplant) |
| Cauliflower | Feb 28–Mar 14 | Apr 25–May 9 (transplant) | Jun 28–Jul 26 (transplant) |
| Brussels sprouts | Feb 14–28 | Apr 11–25 (transplant) | Jun 14–Jul 5 (transplant) |
| Kohlrabi | Mar 14–28 | Apr 11–25 (transplant) Apr 11–25 (sow outdoors) | Jul 26–Aug 9 (sowing) |
| Bok choy / Asian greens | – | Apr 11–25 (sow outdoors) | Aug 9–23 (sowing) |
| Arugula | – | Apr 11–May 9 (sow outdoors) | Aug 9–Sep 6 (sowing) |
| Mustard greens | – | Apr 11–May 2 (sow outdoors) | Aug 9–23 (sowing) |
| Swiss chard | Mar 28–Apr 11 | Apr 25–May 16 (transplant) Apr 25–May 23 (sow outdoors) | Jul 26–Aug 9 (sowing) |
| Beet | – | Apr 11–May 9 (sow outdoors) | Jul 26–Aug 9 (sowing) |
| Carrot | – | Apr 18–May 16 (sow outdoors) | Jul 12–26 (sowing) |
| Radish | – | Apr 4–May 16 (sow outdoors) | Aug 23–Sep 6 (sowing) |
| Turnip | – | Apr 11–May 2 (sow outdoors) | Jul 26–Aug 9 (sowing) |
| Parsnip | – | Apr 18–May 9 (sow outdoors) | – |
| Pea (garden, snap, snow) | – | Mar 14–Apr 11 (sow outdoors) | Jul 12–26 (sowing) |
| Onion (bulbing) | Feb 14–28 | Mar 28–Apr 11 (transplant) | – |
| Green onion / scallion | – | Mar 28–Apr 25 (sow outdoors) | Jul 26–Aug 9 (sowing) |
| Leek | Feb 14–28 | Apr 11–25 (transplant) | – |
| Garlic | – | – | Aug 23–Sep 20 (sowing) |
| Shallot | – | Mar 28–Apr 11 (transplant) | Aug 23–Sep 20 (sowing) |
| Potato | – | Apr 11–25 (transplant) | Jun 14–28 (transplant) |
| Sweet potato | – | May 30–Jun 13 (transplant) | – |
| Sweet corn | – | May 16–30 (sow outdoors) | – |
| Bean, bush (snap) | – | May 16–30 (sow outdoors) | – |
| Bean, pole | – | May 16–30 (sow outdoors) | – |
| Lima bean | – | May 23–Jun 6 (sow outdoors) | – |
| Southern pea (cowpea, black-eyed pea) | – | May 30–Jun 20 (sow outdoors) | – |
| Cucumber | Apr 11–18 | May 16–30 (transplant) May 16–30 (sow outdoors) | – |
| Summer squash / zucchini | Apr 11–18 | May 16–30 (transplant) May 16–30 (sow outdoors) | – |
| Winter squash | Apr 11–18 | May 16–30 (transplant) May 16–30 (sow outdoors) | – |
| Pumpkin | – | May 16–30 (sow outdoors) | – |
| Watermelon | Apr 11–18 | May 23–Jun 6 (transplant) May 23–Jun 6 (sow outdoors) | – |
| Cantaloupe / muskmelon | Apr 11–18 | May 23–Jun 6 (transplant) May 23–Jun 6 (sow outdoors) | – |
| Okra | Mar 28–Apr 11 | May 23–Jun 6 (transplant) May 23–Jun 6 (sow outdoors) | – |
| Celery | Feb 14–28 | May 16–23 (transplant) | – |
| Basil | Mar 28–Apr 11 | May 16–30 (transplant) May 16–30 (sow outdoors) | – |
| Cilantro | – | Apr 25–May 23 (sow outdoors) | Aug 9–23 (sowing) |
| Parsley | Feb 28–Mar 14 | Apr 25–May 9 (transplant) Apr 18–May 9 (sow outdoors) | – |
| Dill | – | May 9–23 (sow outdoors) | Aug 9–23 (sowing) |
| Sunflower | – | May 9–23 (sow outdoors) | – |
| Asparagus (crowns) | – | Apr 11–25 (transplant) | – |
| Rhubarb (crowns) | – | Apr 11–25 (transplant) | – |
| Strawberry (plants) | – | Apr 11–25 (transplant) | Jul 26–Aug 23 (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: Ouzinkie, AK (NOAA GHCN-Daily ID USC00506853), elevation 40 ft, 4.5 miles from the ZIP's center point. NOAA completeness flag: R (representative, 10+ years).
Nearby stations
| Station | Distance | Last frost (50%) | First frost (50%) |
|---|---|---|---|
| Monashka Creek Dam, AK | 5 mi | May 27 | Sep 23 |
| Kodiak Wwtp, AK | 7 mi | Apr 29 | Oct 14 |
| Kodiak AP, AK | 12 mi | May 5 | Oct 3 |
The average last-frost dates of these stations span 29 days, a rough guide to local variation. See data sources & methods.
Frost questions for 99644
When is the last frost in 99644?
The average (50% chance) last spring freeze of 32°F for ZIP 99644 is May 9. For a more cautious planting date, use May 23, when only 1 year in 10 still sees a later freeze.
When is the first frost in 99644?
The average first fall freeze is October 4. In 1 year in 10 it comes by September 22.
What hardiness zone is 99644?
ZIP 99644 is in USDA zone 7b (5 to 10°F average coldest winter night), per the 2023 USDA Plant Hardiness Zone Map ZIP listing.
What is the soil temperature in 99644 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
99550 Port Lions 99615 Aleneva 99643 Old Harbor 99624 Larsen Bay 99608 Karluk 99663 Seldovia Village 99603 Fox River 99613 King Salmon
Other ZIP codes in Kodiak Island Borough
99550 99608 99615 99624 99643 All Kodiak Island Borough frost dates · Alaska frost dates
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