Frost dates for Enterprise, OR
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 24
typical year
Safe to plant
July 6
frost is over in 9 of 10 years
First fall frost
October 1
typical year
Growing season
126 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 26 – May 10 | – |
| Spinach | – | Apr 12 – May 3 | Aug 6 – 20 |
| Lettuce | – | Apr 26 – May 17 | Aug 6 – 20 |
| Radishes | – | Apr 26 – Jun 7 | Aug 20 – Sep 3 |
| Onions | – | Apr 26 – May 10 | – |
| Potatoes | Season usually too short. Try a quick variety or row covers. | ||
| Carrots | – | May 3 – 24 | Jul 9 – 23 |
| Beets | – | Apr 26 – May 10 | Jul 23 – Aug 6 |
| Kale | Mar 15 – 29 | Apr 26 – May 10 | Jul 23 – Aug 6 |
| Broccoli | Mar 15 – 29 | May 10 – 24 | Jul 23 – Aug 6 |
| Cabbage | Mar 1 – 15 | Apr 26 – May 10 | Jul 23 – Aug 6 |
| Garlic | – | – | Aug 20 – Sep 10 |
| Warm-season crops | |||
| Tomatoes | May 11 – 25 | Jul 6 – 20 | – |
| Peppers | May 4 – 18 | Jul 13 – 27 | – |
| Cucumbers | – | Jul 6 – 27 | – |
| Zucchini | – | Jul 6 – Aug 3 | – |
| Pumpkins | Season usually too short. Try a quick variety or row covers. | ||
| Green beans | – | Jul 6 – 23 | – |
| Sweet corn | – | Jul 6 – Aug 3 | – |
| Basil | Jun 1 – 15 | Jul 13 – 20 | – |
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 | July 6 | May 24 | May 6 |
| Fall frost before | September 10 | October 1 | October 15 |
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 May 4 (May 26 in a late year), and the first one in fall around October 13.
Towns that use these dates
This is the nearest NOAA station with frost records for 2 towns.
Enterprise, Joseph
Where these dates come from
NOAA weather station JOSEPH, OR US (USC00354329), 1991–2020 climate normals. It's the nearest station for 2 zip codes, all within 15 miles:
97846, 97857
Planting dates follow common university extension advice; your local extension service can fine-tune them for your soil and microclimate.