Last spring frost
Apr 20
Frost Dates for Neah Bay, WA
First fall frost
Oct 26
Growing season
190 days
Hardiness zone
9a
In an average year around Neah Bay, WA, the last spring frost (32°F) is about Apr 20 and the first fall frost is about Oct 26, giving roughly a 190-day growing season. To be safe most years, wait until Mar 29 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 31 | May 13 | Apr 27 |
| Freeze (32°F) | May 10 | Apr 20 | Mar 29 |
| Hard (28°F) | Apr 15 | Mar 17 | Feb 17 |
| Severe (24°F) | Mar 15 | Feb 14 | Dec 23 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | May 31 | May 25 | May 20 | May 17 | May 13 | May 10 | May 6 | May 2 | Apr 27 |
| 32°F | May 10 | May 3 | Apr 29 | Apr 25 | Apr 20 | Apr 15 | Apr 10 | Apr 4 | Mar 29 |
| 28°F | Apr 15 | Apr 6 | Mar 29 | Mar 23 | Mar 17 | Mar 11 | Mar 3 | Feb 27 | Feb 17 |
| 24°F | Mar 15 | Mar 3 | Feb 26 | Feb 20 | Feb 14 | Feb 7 | Jan 23 | Jan 7 | Dec 23 |
| 20°F | Feb 22 | Feb 12 | Jan 29 | Jan 16 | Jan 6 | Dec 31 | Dec 20 | Dec 11 | Dec 3 |
| 16°F | Jan 31 | Jan 5 | Dec 28 | Dec 20 | Dec 17 | Dec 13 | Dec 9 | Dec 6 | Dec 3 |
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 18 | Oct 5 | Oct 27 |
| Freeze (32°F) | Oct 2 | Oct 26 | Nov 19 |
| Hard (28°F) | Oct 23 | Nov 15 | Dec 15 |
| Severe (24°F) | Nov 10 | Dec 9 | Jan 30 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Sep 18 | Sep 24 | Sep 29 | Oct 2 | Oct 5 | Oct 7 | Oct 12 | Oct 17 | Oct 27 |
| 32°F | Oct 2 | Oct 9 | Oct 14 | Oct 20 | Oct 26 | Oct 31 | Nov 4 | Nov 10 | Nov 19 |
| 28°F | Oct 23 | Oct 31 | Nov 5 | Nov 10 | Nov 15 | Nov 21 | Nov 28 | Dec 4 | Dec 15 |
| 24°F | Nov 10 | Nov 21 | Nov 29 | Dec 3 | Dec 9 | Dec 18 | Dec 27 | Jan 7 | Jan 30 |
| 20°F | Nov 27 | Dec 2 | Dec 8 | Dec 14 | Dec 20 | Dec 29 | Jan 6 | Jan 20 | Feb 9 |
| 16°F | Dec 2 | Dec 4 | Dec 8 | Dec 11 | Dec 16 | Dec 18 | Dec 22 | Dec 29 | Jan 15 |
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: Quillayute State Ap, Wa, about 27.6 miles away@if(!empty($station['elevation_ft'])), at 185 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 Neah Bay, WA?
On average, the last spring frost (32°F) around Neah Bay, WA is about Apr 20. In cooler years it can run later, so for a safer bet many gardeners wait until Mar 29.
When is the first frost in the fall?
The first fall frost around Neah Bay, WA typically arrives about Oct 26. 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 20 on average, or Mar 29 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 190 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 98357 Planting calendar → Washington frost dates →
Data source: NOAA 1991–2020 Climate Normals · Page updated Aug 4, 2026