ZIP 97477 Zone 8b
Oregon · USDA zone 8b, average annual extreme minimum 15°F to 20°F.
Nearest qualified station: EUGENE MAHLON SWEET AP, OR US (USW00024221), 11.4 miles from the Census ZCTA internal point for this ZIP.
Outside the median season Growing seasonTicks: 10%, 50%, and 90%
Last 32°F in spring
NCEI’s probability is the chance the last spring minimum of 32°F or lower occurs on or after the date.
| Probability | Date | How to read it |
|---|---|---|
| 90% | March 15 | Earlier date. A last 32°F on or after this day is common. |
| 50% | April 11 | Median. |
| 10% | May 9 | Later date. A last 32°F on or after this day is uncommon. |
First 32°F in fall
NCEI’s probability is the chance the first autumn minimum of 32°F or lower occurs on or before the date.
| Probability | Date | How to read it |
|---|---|---|
| 10% | October 6 | Earlier date. A first 32°F on or before this day is uncommon. |
| 50% | October 23 | Median. |
| 90% | November 13 | Later date. A first 32°F on or before this day is common. |
32°F growing-season length
Days between the last spring 32°F and the first autumn 32°F. The figure is a length the season meets or exceeds at that probability, from NCEI, not a subtraction done on this site.
| Probability the season is at least this long | Days |
|---|---|
| 10% | 227 |
| 50% | 196 |
| 90% | 162 |
28°F threshold
| 10% | 50% | 90% | |
|---|---|---|---|
| Last, on or after | March 30 | March 3 | February 2 |
| First, on or before | October 20 | November 11 | December 12 |
| Season at least | 294 days | 252 days | 219 days |
36°F threshold
| 10% | 50% | 90% | |
|---|---|---|---|
| Last, on or after | June 8 | May 15 | April 24 |
| First, on or before | September 18 | October 7 | October 24 |
| Season at least | 173 days | 144 days | 115 days |
Station EUGENE MAHLON SWEET AP, OR US (USW00024221). Completeness flag S, 25 years used for the 32°F dates. NCEI’s annual probability of at least one day at or below 32°F is 100%. Freeze dates are conditional on that threshold occurring. Elevation 107.6 m. The same probability language applies to the 28°F and 36°F rows when those dates passed the same quality checks.