Last spring frost
Apr 24
Frost Dates for Creswell, OR
First fall frost
Oct 25
Growing season
183 days
Hardiness zone
8b
In an average year around Creswell, OR, the last spring frost (32°F) is about Apr 24 and the first fall frost is about Oct 25, giving roughly a 183-day growing season. To be safe most years, wait until Mar 31 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%) |
|---|---|---|---|
| Light (36°F) | May 30 | May 12 | Apr 26 |
| Freeze (32°F) | May 10 | Apr 24 | Mar 31 |
| Hard (28°F) | Apr 22 | Mar 23 | Feb 21 |
| Severe (24°F) | Mar 11 | Feb 16 | Dec 29 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | May 30 | May 23 | May 19 | May 15 | May 12 | May 9 | May 5 | May 1 | Apr 26 |
| 32°F | May 10 | May 4 | May 1 | Apr 28 | Apr 24 | Apr 20 | Apr 15 | Apr 9 | Mar 31 |
| 28°F | Apr 22 | Apr 13 | Apr 3 | Mar 29 | Mar 23 | Mar 15 | Mar 7 | Feb 28 | Feb 21 |
| 24°F | Mar 11 | Mar 1 | Feb 26 | Feb 21 | Feb 16 | Feb 8 | Jan 29 | Jan 12 | Dec 29 |
| 20°F | Feb 23 | Feb 17 | Feb 7 | Jan 25 | Jan 14 | Jan 4 | Dec 30 | Dec 22 | Dec 11 |
| 16°F | Feb 11 | Jan 26 | Jan 11 | Jan 1 | Dec 30 | Dec 25 | Dec 20 | Dec 13 | Dec 6 |
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%) |
|---|---|---|---|
| Light (36°F) | Sep 7 | Oct 1 | Oct 26 |
| Freeze (32°F) | Sep 30 | Oct 25 | Nov 16 |
| Hard (28°F) | Oct 21 | Nov 18 | Dec 17 |
| Severe (24°F) | Nov 6 | Dec 15 | Jan 28 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Sep 7 | Sep 14 | Sep 22 | Sep 29 | Oct 1 | Oct 6 | Oct 12 | Oct 17 | Oct 26 |
| 32°F | Sep 30 | Oct 9 | Oct 15 | Oct 20 | Oct 25 | Oct 29 | Nov 1 | Nov 7 | Nov 16 |
| 28°F | Oct 21 | Oct 30 | Nov 4 | Nov 10 | Nov 18 | Nov 24 | Nov 30 | Dec 6 | Dec 17 |
| 24°F | Nov 6 | Nov 20 | Dec 1 | Dec 7 | Dec 15 | Dec 21 | Dec 28 | Jan 6 | Jan 28 |
| 20°F | Nov 24 | Dec 6 | Dec 13 | Dec 21 | Dec 26 | Jan 1 | Jan 9 | Jan 21 | Feb 11 |
| 16°F | Dec 3 | Dec 10 | Dec 16 | Dec 22 | Dec 27 | Dec 31 | Jan 4 | Jan 19 | Feb 3 |
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: Cottage Grove 2E, Or, about 7.4 miles away@if(!empty($station['elevation_ft'])), at 595 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 Creswell, OR?
On average, the last spring frost (32°F) around Creswell, OR is about Apr 24. In cooler years it can run later, so for a safer bet many gardeners wait until Mar 31.
When is the first frost in the fall?
The first fall frost around Creswell, OR typically arrives about Oct 25. 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 Apr 24 on average, or Mar 31 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 183 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 97426 Planting calendar → Oregon frost dates →
Data source: NOAA 1991–2020 Climate Normals · Page updated Aug 4, 2026