Frost Dates for Redmond, OR
In Redmond, OR, the average last spring frost is around Jun 9 and the average first fall frost around Sep 14, for a growing season of about 98 days. For frost-tender plants, wait until Jun 26, when the chance of frost drops to 10%.
Based on NOAA 1991–2020 records from the Redmond Roberts Fld, OR weather station, 2 miles away, elevation 3,043 ft. Frost can come earlier in low spots and valleys and later near cities and large lakes.
Frost probability by date
Chance of a 32°F frost after the spring date, or before the fall date.
| Chance | Last spring frost | First fall frost |
|---|---|---|
| 10% | Jun 26 | Sep 1 |
| 20% | Jun 21 | Sep 5 |
| 30% | Jun 17 | Sep 8 |
| 40% | Jun 13 | Sep 12 |
| 50% | Jun 9 | Sep 14 |
| 60% | Jun 4 | Sep 19 |
| 70% | May 31 | Sep 22 |
| 80% | May 25 | Sep 26 |
| 90% | May 17 | Oct 1 |
Light frost vs. hard freeze
Average (50%) dates for each temperature. Tender plants are damaged at 36°F; most hardy crops survive until 28°F.
| Temperature | Last in spring | First in fall |
|---|---|---|
| Light frost (36°F) | — | — |
| Frost / freeze (32°F) | Jun 9 | Sep 14 |
| Hard freeze (28°F) | May 14 | Sep 30 |
Planting calendar for Redmond
Transplant Jun 16 – Jun 30
Transplant Jun 23 – Jul 7
Transplant Jun 23 – Jul 7
Transplant Jun 16 – Jun 30
Sow or transplant Jun 16 – Jun 30
Sow or transplant Jun 16 – Jun 30
Sow or transplant Jun 23 – Jul 7
Sow or transplant May 12 – May 26
Fall sowing Jul 20 – Aug 17
Fall sowing Jul 20 – Aug 10
Fall sowing Jul 6 – Jul 20
Sow or transplant May 12 – May 26
Fall sowing Jul 6 – Aug 3
Transplant May 26 – Jun 9
Fall sowing Jun 22 – Jul 6
Transplant May 19 – Jun 2
Fall sowing Jun 22 – Jul 6
Fall sowing Jun 22 – Jul 6
Fall sowing Aug 3 – Aug 24
Fall sowing Jul 6 – Jul 20
Plant May 12 – May 26
Based on the average last frost (Jun 9) and first frost (Sep 14). The dashed lines mark those dates. Seed packets list days to maturity; adjust for your varieties.