USDA Hardiness Zone 8b
Frost Dates for 98282 — Camano Island, Washington
NOAA 1991–2020 normals from Coupeville 1 S, WA (50 ft), 10 miles west.
Updated
In Camano Island, the last spring frost (32°F) is around March 17 in half of years and has passed by April 3 in nine years out of ten. The first fall frost comes around November 11, as early as October 21 one year in ten, leaving a typical freeze-free season of 237 days (NOAA, Coupeville 1 S, WA).
- Last spring frost
- March 17
- First fall frost
- November 11
- Growing season
- 237 days
- Hardiness zone
- 8b
50% probability
50% probability
freeze-free, 50%
15 to 20°F (-9.4 to -6.7°C) coldest night
- First snow
- Rare
- Last snow
- Rare
- Winters with snow
- 26%
- Snow per year
- 2.5"
median, 1991–2020
median, 1991–2020
5 of 19 observed
NOAA normal
Frost risk by date in Camano Island
Half of springs at Coupeville 1 S, WA see their last 32°F night by March 17; only one in ten is past it by February 24, and one in ten still has one after April 3. Planting tender crops after March 26 leaves a 30% risk of a frost on them, after March 30 20%, and after April 3 10%. The 17 days between the even-odds date and the one-in-ten date is narrower than at 66% of the 113 Washington stations behind this site's ZIP pages.
In fall the first 32°F night comes by November 11 in half of years, as early as October 21 one year in ten, and holds off past December 1 one year in ten. A hard freeze of 28°F follows 17 days later, around November 28; in spring the one-in-ten date for 28°F is March 12, 22 days before the 32°F one. The freeze-free season lasts 237 days in a typical year, longer than at 86% of the 113 Washington stations; it reaches 266 days one year in ten and falls short of 212 one year in ten. On average 32 nights a year drop to 32°F or below. Nights of 36°F, when frost can still settle on leaves in low, open spots, continue 27 days longer, to about April 13, and return around October 27. Nights of 24°F, cold enough to damage hardier plants, come in 84% of winters and 16°F in 12%.
| Low | 90% | 80% | 70% | 60% | 50% | 40% | 30% | 20% | 10% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Mar 27 | Apr 2 | Apr 5 | Apr 9 | Apr 13 | Apr 16 | Apr 20 | Apr 25 | Apr 30 |
| 32°F | Feb 24 | Mar 2 | Mar 7 | Mar 11 | Mar 17 | Mar 21 | Mar 26 | Mar 30 | Apr 3 |
| 28°F99% of yrs | Jan 11 | Jan 31 | Feb 11 | Feb 17 | Feb 21 | Feb 26 | Mar 1 | Mar 6 | Mar 12 |
| 24°F84% of yrs | Dec 6 | Dec 22 | Jan 1 | Jan 8 | Jan 18 | Jan 31 | Feb 11 | Feb 18 | Feb 27 |
| 20°F47% of yrs | too rare for a date | ||||||||
| 16°F12% of yrs | too rare for a date | ||||||||
| Low | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Oct 7 | Oct 14 | Oct 18 | Oct 22 | Oct 27 | Oct 30 | Nov 2 | Nov 6 | Nov 13 |
| 32°F | Oct 21 | Oct 30 | Nov 3 | Nov 7 | Nov 11 | Nov 16 | Nov 20 | Nov 25 | Dec 1 |
| 28°F99% of yrs | Nov 6 | Nov 12 | Nov 19 | Nov 24 | Nov 28 | Dec 1 | Dec 7 | Dec 16 | Dec 30 |
| 24°F84% of yrs | Nov 16 | Nov 25 | Nov 30 | Dec 5 | Dec 12 | Dec 19 | Dec 29 | Jan 6 | Jan 28 |
| 20°F47% of yrs | too rare for a date | ||||||||
| 16°F12% of yrs | too rare for a date | ||||||||
Freeze probabilities 1991–2020 at Coupeville 1 S, WA, from NOAA NCEI U.S. Climate Normals. Where a temperature is reached in fewer than 99.5% of years, the dates describe only the years that reach it. Not a forecast.
Frost risk on any date in 98282 →Compare Camano Island with another place →
Weather by month in Camano Island
August is the warmest month at Coupeville 1 S, WA, averaging 71°F by day and 53°F at night; December is the coldest at 44°F and 36°F. A freezing night is all but certain in every month from December to February (a 90% chance or more). From May to September the chance of a 32°F night stays under 10% each month. In spring, March still brings one in 80% of years and April still brings one in 15% of years.
Warmth for growing adds up to 1,420 growing degree days a year (base 50°F), fewer than at 95% of the 113 Washington stations. 29% of them (407) have built up by the end of June, and August adds the most, 360. Precipitation totals 21.8 inches a year, most in November (3.1") and least in August (0.7"); May to September bring 26% of it.
| Month | High °F | Low °F | Precip. in | 32°F night | Nights ≤ 32°F | GDD 50°F |
|---|---|---|---|---|---|---|
| Jan | 44 | 37 | 2.5 | 96% | 7 | 1 |
| Feb | 47 | 36 | 1.9 | 92% | 8 | 1 |
| Mar | 51 | 38 | 2.0 | 80% | 4 | 5 |
| Apr | 57 | 42 | 1.9 | 15% | <1 | 34 |
| May | 62 | 47 | 1.7 | 0% | 0 | 135 |
| Jun | 65 | 50 | 1.3 | 0% | 0 | 231 |
| Jul | 70 | 53 | 0.8 | 0% | 0 | 353 |
| Aug | 71 | 53 | 0.7 | 0% | 0 | 360 |
| Sep | 66 | 49 | 1.2 | 0% | 0 | 229 |
| Oct | 56 | 45 | 2.1 | 24% | 1 | 62 |
| Nov | 49 | 40 | 3.1 | 86% | 4 | 8 |
| Dec | 44 | 36 | 2.6 | 97% | 8 | 1 |
Monthly normals 1991–2020 at Coupeville 1 S, WA (50 ft), NOAA NCEI. "32°F night": chance of at least one in the month. GDD: growing degree days, base 50°F.
Compared with the next station
The nearest other station, Port Townsend, WA, 14 miles west of Camano Island, has a last frost 16 days earlier (March 1), a first frost 17 days later (November 28), a season 37 days longer.
When it snows in Camano Island, Washington
Measurable snow is rare here: only 5 of 19 winters from 1991 to 2020 recorded 0.1 inch or more at Coupeville 1 S, WA, 9.8 miles away, so there is no typical first-snow date to plan around.
Planting calendar for 98282
| When | What to do |
|---|---|
| January 6 – January 20 | Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out. |
| January 20 – February 3 | Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early. |
| February 17 – March 3 | Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil. |
| March 17 onward | Transplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast. |
| by August 19 | Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops. |
| by October 28 | Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation. |
| November 11 onward | Plant garlic, mulch beds, lift tender bulbsGarlic wants a cold spell; bare soil loses structure over winter. |
The weeks before and after the 50% dates are general rules of thumb, not NOAA figures; a seed packet gives the timing for each variety.
Where these figures come from
ZIP 98282 is 10 miles from Coupeville 1 S, WA, which stands at 50 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 1 other ZIP code shares the station. The 2023 USDA Plant Hardiness Zone Map lists ZIP 98282 in zone 8b, the band where the coldest night of the year averaged 15 to 20°F (-9.4 to -6.7°C) over 1991–2020; a zone describes winter lows, not frost dates.
Frost dates across Washington →
Hardiness zone and temperature range: USDA Plant Hardiness Zone Map 2023 (USDA-ARS, Oregon State University), ZIP-code listing, unchanged. °C converted from °F by this site.
Thirty-year averages, not a forecast: check the forecast before planting out. How stations are matched and which pages are offered to search engines: methodology.