Frost dates for Bickleton, WA
When the last spring frost and first fall frost usually come, and when to plant, from 30 years of NOAA weather records.
Last spring frost
May 16
typical year
Safe to plant
June 10
frost is over in 9 of 10 years
First fall frost
October 9
typical year
Growing season
144 days
frost-free, typical year
Frost watch this week
Tonight's and the next six nights' lows from the National Weather Service forecast for the station's location. Frost: 32°F or colder. Possible frost: 33–36°F, mostly in low spots on clear, still nights.
When to plant
Counted from this page's frost dates. Warm-season crops wait for the safe-to-plant date.
| Crop | Start indoors | Plant outside | Fall planting |
|---|---|---|---|
| Cool-season crops | |||
| Peas | – | Apr 18 – May 2 | – |
| Spinach | – | Apr 4 – 25 | Aug 14 – 28 |
| Lettuce | – | Apr 18 – May 9 | Aug 14 – 28 |
| Radishes | – | Apr 18 – May 30 | Aug 28 – Sep 11 |
| Onions | – | Apr 18 – May 2 | – |
| Potatoes | – | Apr 25 – May 9 | – |
| Carrots | – | Apr 25 – May 16 | Jul 17 – 31 |
| Beets | – | Apr 18 – May 2 | Jul 31 – Aug 14 |
| Kale | Mar 7 – 21 | Apr 18 – May 2 | Jul 31 – Aug 14 |
| Broccoli | Mar 7 – 21 | May 2 – 16 | Jul 31 – Aug 14 |
| Cabbage | Feb 21 – Mar 7 | Apr 18 – May 2 | Jul 31 – Aug 14 |
| Garlic | – | – | Aug 28 – Sep 18 |
| Warm-season crops | |||
| Tomatoes | Apr 15 – 29 | Jun 10 – 24 | – |
| Peppers | Apr 8 – 22 | Jun 17 – Jul 1 | – |
| Cucumbers | – | Jun 10 – Jul 1 | – |
| Zucchini | – | Jun 10 – Jul 8 | – |
| Pumpkins | – | Jun 10 – Jul 1 | – |
| Green beans | – | Jun 10 – Jul 31 | – |
| Sweet corn | – | Jun 10 – Jul 8 | – |
| Basil | May 6 – 20 | Jun 17 – 24 | – |
Onions: from sets. Green beans: until 10 weeks before the first fall frost. Garlic: harvest next summer.
The year at a glance
Start indoors Plant outside Fall planting
The chance of frost, by date
| 1 year in 10 | Half of years | 9 years in 10 | |
|---|---|---|---|
| Spring frost after | June 10 | May 16 | April 28 |
| Fall frost before | September 26 | October 9 | October 26 |
Frost here means 32°F or colder. Read across: in 1 year in 10, spring frost carries on past the first date, which is why that date is the safe-to-plant date.
Hard freeze (28°F)
A hard freeze kills most garden plants, even hardy ones. The last one in spring usually comes around April 27 (May 16 in a late year), and the first one in fall around October 22.
Where these dates come from
NOAA weather station BICKLETON, WA US (USC00450668), 1991–2020 climate normals. It's the nearest station for 1 zip code, all within 8 miles:
99322
Planting dates follow common university extension advice; your local extension service can fine-tune them for your soil and microclimate.