Last spring frost
Apr 9
Frost Dates for Port Angeles, WA
First fall frost
Nov 3
Growing season
209 days
Hardiness zone
8b
In an average year around Port Angeles, WA, the last spring frost (32°F) is about Apr 9 and the first fall frost is about Nov 3, giving roughly a 209-day growing season. To be safe most years, wait until Mar 19 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 19 | May 3 | Apr 18 |
| Freeze (32°F) | Apr 29 | Apr 9 | Mar 19 |
| Hard (28°F) | Mar 30 | Mar 4 | Feb 3 |
| Severe (24°F) | Feb 28 | Feb 1 | Dec 13 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | May 19 | May 14 | May 10 | May 6 | May 3 | Apr 30 | Apr 27 | Apr 23 | Apr 18 |
| 32°F | Apr 29 | Apr 22 | Apr 18 | Apr 13 | Apr 9 | Apr 4 | Mar 31 | Mar 27 | Mar 19 |
| 28°F | Mar 30 | Mar 23 | Mar 16 | Mar 10 | Mar 4 | Feb 28 | Feb 22 | Feb 16 | Feb 3 |
| 24°F | Feb 28 | Feb 22 | Feb 17 | Feb 10 | Feb 1 | Jan 21 | Jan 10 | Jan 1 | Dec 13 |
| 20°F | Feb 17 | Feb 1 | Jan 24 | Jan 16 | Jan 7 | Dec 31 | Dec 18 | Dec 10 | Dec 2 |
| 16°F | Jan 31 | Jan 22 | Jan 16 | Jan 10 | Jan 1 | Dec 22 | Dec 11 | Dec 7 | Nov 29 |
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 5 | Oct 19 | Nov 2 |
| Freeze (32°F) | Oct 19 | Nov 3 | Nov 23 |
| Hard (28°F) | Nov 2 | Nov 24 | Dec 23 |
| Severe (24°F) | Nov 18 | Dec 13 | Feb 1 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Oct 5 | Oct 9 | Oct 13 | Oct 16 | Oct 19 | Oct 22 | Oct 25 | Oct 28 | Nov 2 |
| 32°F | Oct 19 | Oct 24 | Oct 28 | Oct 31 | Nov 3 | Nov 6 | Nov 10 | Nov 16 | Nov 23 |
| 28°F | Nov 2 | Nov 9 | Nov 14 | Nov 20 | Nov 24 | Nov 29 | Dec 3 | Dec 10 | Dec 23 |
| 24°F | Nov 18 | Nov 26 | Dec 1 | Dec 7 | Dec 13 | Dec 23 | Dec 30 | Jan 8 | Feb 1 |
| 20°F | Nov 25 | Dec 1 | Dec 6 | Dec 11 | Dec 21 | Dec 31 | Jan 9 | Jan 22 | Feb 7 |
| 16°F | Nov 27 | Dec 4 | Dec 10 | Dec 17 | Dec 29 | Jan 6 | Jan 15 | Jan 19 | Jan 30 |
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: Elwha Rs, Wa, about 10.8 miles away@if(!empty($station['elevation_ft'])), at 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 Port Angeles, WA?
On average, the last spring frost (32°F) around Port Angeles, WA is about Apr 9. In cooler years it can run later, so for a safer bet many gardeners wait until Mar 19.
When is the first frost in the fall?
The first fall frost around Port Angeles, WA typically arrives about Nov 3. 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 9 on average, or Mar 19 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 209 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 98363 Planting calendar → Washington frost dates →
Data source: NOAA 1991–2020 Climate Normals · Page updated Aug 4, 2026