Last spring frost
Apr 15
Frost Dates for Aberdeen Gardens, WA
First fall frost
Nov 2
Growing season
200 days
Hardiness zone
8b
In an average year around Aberdeen Gardens, WA, the last spring frost (32°F) is about Apr 15 and the first fall frost is about Nov 2, giving roughly a 200-day growing season. To be safe most years, wait until Mar 23 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 28 | May 6 | Apr 20 |
| Freeze (32°F) | May 8 | Apr 15 | Mar 23 |
| Hard (28°F) | Apr 8 | Mar 10 | Feb 7 |
| Severe (24°F) | Mar 4 | Jan 31 | Dec 10 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | May 28 | May 21 | May 16 | May 11 | May 6 | May 3 | Apr 30 | Apr 26 | Apr 20 |
| 32°F | May 8 | May 1 | Apr 26 | Apr 20 | Apr 15 | Apr 10 | Apr 5 | Mar 30 | Mar 23 |
| 28°F | Apr 8 | Mar 31 | Mar 24 | Mar 17 | Mar 10 | Mar 3 | Feb 27 | Feb 20 | Feb 7 |
| 24°F | Mar 4 | Feb 26 | Feb 19 | Feb 9 | Jan 31 | Jan 18 | Jan 8 | Dec 29 | Dec 10 |
| 20°F | Feb 22 | Feb 10 | Jan 29 | Jan 17 | Jan 4 | Dec 29 | Dec 19 | Dec 9 | Dec 1 |
| 16°F | Jan 16 | Jan 5 | Dec 29 | Dec 21 | Dec 14 | Dec 10 | Dec 7 | Dec 1 | Nov 21 |
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 30 | Oct 16 | Nov 1 |
| Freeze (32°F) | Oct 17 | Nov 2 | Nov 26 |
| Hard (28°F) | Nov 2 | Nov 27 | Dec 29 |
| Severe (24°F) | Nov 18 | Dec 18 | Feb 2 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Sep 30 | Oct 5 | Oct 8 | Oct 12 | Oct 16 | Oct 19 | Oct 23 | Oct 27 | Nov 1 |
| 32°F | Oct 17 | Oct 23 | Oct 27 | Oct 30 | Nov 2 | Nov 7 | Nov 12 | Nov 18 | Nov 26 |
| 28°F | Nov 2 | Nov 10 | Nov 17 | Nov 22 | Nov 27 | Dec 1 | Dec 8 | Dec 17 | Dec 29 |
| 24°F | Nov 18 | Nov 27 | Dec 2 | Dec 9 | Dec 18 | Dec 26 | Jan 1 | Jan 12 | Feb 2 |
| 20°F | Nov 24 | Dec 1 | Dec 8 | Dec 16 | Dec 26 | Jan 1 | Jan 11 | Jan 27 | Feb 13 |
| 16°F | Nov 15 | Nov 30 | Dec 5 | Dec 9 | Dec 13 | Dec 19 | Dec 27 | Jan 3 | Jan 13 |
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: Aberdeen 20Nne, Wa, about 6 miles away@if(!empty($station['elevation_ft'])), at 435 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 Aberdeen Gardens, WA?
On average, the last spring frost (32°F) around Aberdeen Gardens, WA is about Apr 15. In cooler years it can run later, so for a safer bet many gardeners wait until Mar 23.
When is the first frost in the fall?
The first fall frost around Aberdeen Gardens, WA typically arrives about Nov 2. 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 15 on average, or Mar 23 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 200 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 98563 Planting calendar → Washington frost dates →
Data source: NOAA 1991–2020 Climate Normals · Page updated Aug 4, 2026