Last spring frost
Jun 6
Frost Dates for Paisley, OR
First fall frost
Sep 14
Growing season
98 days
Hardiness zone
6b
In an average year around Paisley, OR, the last spring frost (32°F) is about Jun 6 and the first fall frost is about Sep 14, giving roughly a 98-day growing season. To be safe most years, wait until May 12 before setting out tender plants.
Last spring frost
Dates the last frost of spring typically ends. Plant tender crops after the risk has passed for your comfort level.
| Frost intensity | Early (10%) | Average (50%) | Late (90%) |
|---|---|---|---|
| Freeze (32°F) | Jun 28 | Jun 6 | May 12 |
| Hard (28°F) | Jun 2 | May 10 | Apr 25 |
| Severe (24°F) | May 9 | Apr 23 | Apr 7 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 32°F | Jun 28 | Jun 21 | Jun 15 | Jun 11 | Jun 6 | Jun 1 | May 28 | May 19 | May 12 |
| 28°F | Jun 2 | May 26 | May 18 | May 14 | May 10 | May 6 | May 3 | Apr 30 | Apr 25 |
| 24°F | May 9 | May 4 | May 1 | Apr 27 | Apr 23 | Apr 20 | Apr 17 | Apr 13 | Apr 7 |
| 20°F | Apr 24 | Apr 18 | Apr 14 | Apr 10 | Apr 6 | Apr 2 | Mar 29 | Mar 23 | Mar 13 |
| 16°F | Apr 8 | Apr 1 | Mar 26 | Mar 18 | Mar 13 | Mar 7 | Mar 2 | Feb 24 | Feb 15 |
First fall frost
Dates the first frost of fall typically arrives. Count back by a crop's days-to-maturity to know your planting cutoff.
| Frost intensity | Early (10%) | Average (50%) | Late (90%) |
|---|---|---|---|
| Freeze (32°F) | Aug 27 | Sep 14 | Sep 28 |
| Hard (28°F) | Sep 12 | Sep 28 | Oct 13 |
| Severe (24°F) | Sep 26 | Oct 10 | Oct 27 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 32°F | Aug 27 | Sep 2 | Sep 7 | Sep 11 | Sep 14 | Sep 18 | Sep 21 | Sep 24 | Sep 28 |
| 28°F | Sep 12 | Sep 18 | Sep 22 | Sep 25 | Sep 28 | Oct 1 | Oct 4 | Oct 7 | Oct 13 |
| 24°F | Sep 26 | Oct 1 | Oct 4 | Oct 7 | Oct 10 | Oct 13 | Oct 17 | Oct 20 | Oct 27 |
| 20°F | Oct 8 | Oct 12 | Oct 15 | Oct 18 | Oct 22 | Oct 26 | Oct 30 | Nov 4 | Nov 11 |
| 16°F | Oct 15 | Oct 20 | Oct 25 | Oct 29 | Nov 2 | Nov 6 | Nov 11 | Nov 19 | Nov 25 |
Growing season is measured at 32°F with about 50% probability. Hardiness zone from the 2023 USDA map; frost normals from NOAA 1991-2020.
Where this data comes from
@endif These dates are computed from the nearest official weather station with long-term records: Paisley, Or, about 3.1 miles away@if(!empty($station['elevation_ft'])), at 4,360 ft elevation. The further the station and the greater the elevation difference from your yard, the more your local frost timing can vary.
How we calculate these dates
Frost and freeze dates come from the NOAA 1991–2020 U.S. Climate Normals, the National Oceanic and Atmospheric Administration's 30-year averages for each weather station. A date shown at the 50% level is the median: in half of years the frost falls on or before it. The 10% and 90% columns show the early and late ends of the range, so you can plant on the odds you're comfortable with. These are long-term averages, not a forecast for this year - always check your local outlook before planting.
Source: NOAA National Centers for Environmental Information, 1991–2020 Climate Normals (public domain). Harman is not affiliated with or endorsed by NOAA.
Frequently asked questions
When is the last frost in Paisley, OR?
On average, the last spring frost (32°F) around Paisley, OR is about Jun 6. In cooler years it can run later, so for a safer bet many gardeners wait until May 12.
When is the first frost in the fall?
The first fall frost around Paisley, OR typically arrives about Sep 14. Count back by a crop's days to maturity to find the latest date you can plant it.
When can I plant tomatoes and other tender crops?
Tender crops like tomatoes, peppers and basil are damaged by frost, so wait until the last spring frost has passed - around Jun 6 on average, or May 12 to be safe most years.
How long is the growing season here?
The frost-free growing season (between the last spring and first fall 32°F frost) is about 98 days in a typical year.
Are these dates a forecast for this year?
No. They are 30-year averages from the NOAA 1991–2020 Climate Normals, not a prediction for the current year. Use them for planning and always check your local weather forecast before planting or protecting crops.
Local weather for 97636 Planting calendar → Oregon frost dates →
Data source: NOAA 1991–2020 Climate Normals · Page updated Aug 4, 2026