Last spring frost
Mar 27
Frost Dates for Estacada, OR
First fall frost
Nov 14
Growing season
230 days
Hardiness zone
8b
In an average year around Estacada, OR, the last spring frost (32°F) is about Mar 27 and the first fall frost is about Nov 14, giving roughly a 230-day growing season. To be safe most years, wait until Mar 2 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 11 | Apr 25 | Apr 3 |
| Freeze (32°F) | Apr 23 | Mar 27 | Mar 2 |
| Hard (28°F) | Mar 20 | Feb 22 | Jan 15 |
| Severe (24°F) | Feb 22 | Jan 21 | Dec 12 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | May 11 | May 5 | May 2 | Apr 29 | Apr 25 | Apr 21 | Apr 16 | Apr 11 | Apr 3 |
| 32°F | Apr 23 | Apr 14 | Apr 5 | Apr 1 | Mar 27 | Mar 23 | Mar 17 | Mar 11 | Mar 2 |
| 28°F | Mar 20 | Mar 9 | Mar 1 | Feb 26 | Feb 22 | Feb 17 | Feb 11 | Feb 2 | Jan 15 |
| 24°F | Feb 22 | Feb 14 | Feb 7 | Jan 31 | Jan 21 | Jan 11 | Jan 2 | Dec 24 | Dec 12 |
| 20°F | Feb 14 | Feb 1 | Jan 21 | Jan 11 | Jan 2 | Dec 25 | Dec 20 | Dec 13 | Dec 2 |
| 16°F | Jan 23 | Jan 10 | Jan 2 | Dec 31 | Dec 24 | Dec 21 | Dec 18 | Dec 13 | Dec 7 |
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) | Oct 8 | Oct 25 | Nov 14 |
| Freeze (32°F) | Oct 23 | Nov 14 | Dec 7 |
| Hard (28°F) | Nov 9 | Dec 3 | Jan 2 |
| Severe (24°F) | Nov 21 | Dec 19 | Feb 1 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Oct 8 | Oct 15 | Oct 19 | Oct 22 | Oct 25 | Oct 28 | Nov 1 | Nov 6 | Nov 14 |
| 32°F | Oct 23 | Oct 30 | Nov 4 | Nov 9 | Nov 14 | Nov 18 | Nov 24 | Nov 29 | Dec 7 |
| 28°F | Nov 9 | Nov 16 | Nov 23 | Nov 28 | Dec 3 | Dec 7 | Dec 15 | Dec 23 | Jan 2 |
| 24°F | Nov 21 | Nov 30 | Dec 7 | Dec 12 | Dec 19 | Dec 26 | Jan 1 | Jan 10 | Feb 1 |
| 20°F | Nov 30 | Dec 5 | Dec 11 | Dec 18 | Dec 23 | Dec 30 | Jan 4 | Jan 18 | Feb 3 |
| 16°F | Dec 3 | Dec 10 | Dec 15 | Dec 19 | Dec 22 | Dec 30 | Jan 1 | Jan 5 | Jan 20 |
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: Estacada 2 Se, Or, about 5.3 miles away@if(!empty($station['elevation_ft'])), at 514 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 Estacada, OR?
On average, the last spring frost (32°F) around Estacada, OR is about Mar 27. In cooler years it can run later, so for a safer bet many gardeners wait until Mar 2.
When is the first frost in the fall?
The first fall frost around Estacada, OR typically arrives about Nov 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 Mar 27 on average, or Mar 2 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 230 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 97022 Planting calendar → Oregon frost dates →
Data source: NOAA 1991–2020 Climate Normals · Page updated Aug 4, 2026