Frost dates for ZIP 97031 (Hood River, OR)
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, Parkdale 1 NNE, OR (5 miles away).
- Average last spring frostMay 1350% chance of a 32°F freeze after this date
- Average first fall frostOct 350% chance of a 32°F freeze by this date
- Growing season (frost-free)142 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 97031 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 March to April.
Fertilizer window
Lawn region: Pacific Northwest (west of the Cascades). Timing only; always follow the product label.
- 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
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 26 |
| 50% (the "average" last frost) | May 13 |
| 10% (cautious: only 1 year in 10 freezes later) | Jun 3 |
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 15 |
| 50% (the "average" first frost) | Oct 3 |
| 90% (late: most years have frozen by now) | Oct 19 |
Light frost, freeze and hard freeze
| Threshold | Last spring (50%) | First fall (50%) |
|---|---|---|
| 36°F (light frost possible on clear, calm nights) | Jun 8 | Sep 15 |
| 32°F (freeze) | May 13 | Oct 3 |
| 28°F (hard freeze) | Apr 21 | Oct 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 97031
Dates count from your average last spring frost (May 13) and first fall frost (Oct 3). 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 18–Apr 1 | May 20–Jun 3 (transplant) | – |
| Pepper (sweet and hot) | Mar 4–18 | May 27–Jun 10 (transplant) | – |
| Eggplant | Mar 4–18 | May 27–Jun 10 (transplant) | – |
| Tomatillo | Mar 18–Apr 1 | May 20–Jun 3 (transplant) | – |
| Lettuce | Mar 18–Apr 1 | Apr 22–May 13 (transplant) Apr 15–May 27 (sow outdoors) | Aug 8–29 (transplant) Jul 25–Aug 22 (sowing) |
| Spinach | – | Apr 1–22 (sow outdoors) | Aug 8–29 (sowing) |
| Kale | Mar 18–Apr 1 | Apr 15–29 (transplant) Apr 15–29 (sow outdoors) | Jul 11–Aug 8 (transplant) Jun 27–Jul 25 (sowing) |
| Collards | Mar 18–Apr 1 | Apr 15–May 13 (transplant) Apr 15–May 13 (sow outdoors) | Jul 11–Aug 8 (transplant) Jun 27–Jul 25 (sowing) |
| Broccoli | Mar 4–18 | Apr 15–29 (transplant) | Jun 27–Jul 25 (transplant) |
| Cabbage | Mar 4–18 | Apr 15–29 (transplant) | Jun 27–Jul 25 (transplant) |
| Cauliflower | Mar 4–18 | Apr 29–May 13 (transplant) | Jun 27–Jul 25 (transplant) |
| Brussels sprouts | Feb 18–Mar 4 | Apr 15–29 (transplant) | Jun 13–Jul 4 (transplant) |
| Kohlrabi | Mar 18–Apr 1 | Apr 15–29 (transplant) Apr 15–29 (sow outdoors) | Jul 25–Aug 8 (sowing) |
| Bok choy / Asian greens | – | Apr 15–29 (sow outdoors) | Aug 8–22 (sowing) |
| Arugula | – | Apr 15–May 13 (sow outdoors) | Aug 8–Sep 5 (sowing) |
| Mustard greens | – | Apr 15–May 6 (sow outdoors) | Aug 8–22 (sowing) |
| Swiss chard | Apr 1–15 | Apr 29–May 20 (transplant) Apr 29–May 27 (sow outdoors) | Jul 25–Aug 8 (sowing) |
| Beet | – | Apr 15–May 13 (sow outdoors) | Jul 25–Aug 8 (sowing) |
| Carrot | – | Apr 22–May 20 (sow outdoors) | Jul 11–25 (sowing) |
| Radish | – | Apr 8–May 20 (sow outdoors) | Aug 22–Sep 5 (sowing) |
| Turnip | – | Apr 15–May 6 (sow outdoors) | Jul 25–Aug 8 (sowing) |
| Parsnip | – | Apr 22–May 13 (sow outdoors) | – |
| Pea (garden, snap, snow) | – | Mar 18–Apr 15 (sow outdoors) | Jul 11–25 (sowing) |
| Onion (bulbing) | Feb 18–Mar 4 | Apr 1–15 (transplant) | – |
| Green onion / scallion | – | Apr 1–29 (sow outdoors) | Jul 25–Aug 8 (sowing) |
| Leek | Feb 18–Mar 4 | Apr 15–29 (transplant) | – |
| Garlic | – | – | Aug 22–Sep 19 (sowing) |
| Shallot | – | Apr 1–15 (transplant) | Aug 22–Sep 19 (sowing) |
| Potato | – | Apr 15–29 (transplant) | Jun 13–27 (transplant) |
| Sweet potato | – | Jun 3–17 (transplant) | – |
| Sweet corn | – | May 20–Jun 3 (sow outdoors) | – |
| Bean, bush (snap) | – | May 20–Jun 3 (sow outdoors) | – |
| Bean, pole | – | May 20–Jun 3 (sow outdoors) | – |
| Lima bean | – | May 27–Jun 10 (sow outdoors) | – |
| Southern pea (cowpea, black-eyed pea) | – | Jun 3–24 (sow outdoors) | – |
| Cucumber | Apr 15–22 | May 20–Jun 3 (transplant) May 20–Jun 3 (sow outdoors) | – |
| Summer squash / zucchini | Apr 15–22 | May 20–Jun 3 (transplant) May 20–Jun 3 (sow outdoors) | – |
| Winter squash | Apr 15–22 | May 20–Jun 3 (transplant) May 20–Jun 3 (sow outdoors) | – |
| Pumpkin | – | May 20–Jun 3 (sow outdoors) | – |
| Watermelon | Apr 15–22 | May 27–Jun 10 (transplant) May 27–Jun 10 (sow outdoors) | – |
| Cantaloupe / muskmelon | Apr 15–22 | May 27–Jun 10 (transplant) May 27–Jun 10 (sow outdoors) | – |
| Okra | Apr 1–15 | May 27–Jun 10 (transplant) May 27–Jun 10 (sow outdoors) | – |
| Celery | Feb 18–Mar 4 | May 20–27 (transplant) | – |
| Basil | Apr 1–15 | May 20–Jun 3 (transplant) May 20–Jun 3 (sow outdoors) | – |
| Cilantro | – | Apr 29–May 27 (sow outdoors) | Aug 8–22 (sowing) |
| Parsley | Mar 4–18 | Apr 29–May 13 (transplant) Apr 22–May 13 (sow outdoors) | – |
| Dill | – | May 13–27 (sow outdoors) | Aug 8–22 (sowing) |
| Sunflower | – | May 13–27 (sow outdoors) | – |
| Asparagus (crowns) | – | Apr 15–29 (transplant) | – |
| Rhubarb (crowns) | – | Apr 15–29 (transplant) | – |
| Strawberry (plants) | – | Apr 15–29 (transplant) | Jul 25–Aug 22 (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: Parkdale 1 NNE, OR (NOAA GHCN-Daily ID USC00356466), elevation 1,520 ft, 5.3 miles from the ZIP's center point. NOAA completeness flag: R (representative, 10+ years).
Nearby stations
| Station | Distance | Last frost (50%) | First frost (50%) |
|---|---|---|---|
| Hood Rvr EXP STN, OR | 7 mi | Apr 20 | Oct 13 |
| Cascade Locks, OR | 14 mi | Mar 24 | Nov 20 |
| Bonneville Dam, OR | 17 mi | Mar 14 | Nov 27 |
The average last-frost dates of these stations span 61 days, a rough guide to local variation. See data sources & methods.
Frost questions for 97031
When is the last frost in 97031?
The average (50% chance) last spring freeze of 32°F for ZIP 97031 is May 13. For a more cautious planting date, use June 3, when only 1 year in 10 still sees a later freeze.
When is the first frost in 97031?
The average first fall freeze is October 3. In 1 year in 10 it comes by September 15.
What hardiness zone is 97031?
ZIP 97031 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 97031 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
98651 97014 Cascade Locks 97040 Mosier 98605 Bingen 97041 Mount Hood 98623 98672 White Salmon 98639 North Bonneville
Other ZIP codes in Hood River County
97014 97041 All Hood River County frost dates · Oregon frost dates
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