ZIP 85120 Zone 9b
Arizona · USDA zone 9b, average annual extreme minimum 25°F to 30°F.
Nearest qualified station: E MESA, AZ US (USC00022782), 5.3 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% | January 1 | Earlier date. A last 32°F on or after this day is common. |
| 50% | February 1 | Median. |
| 10% | February 28 | 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% | November 22 | Earlier date. A first 32°F on or before this day is uncommon. |
| 50% | December 10 | Median. |
| 90% | January 1 | 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% | 348 |
| 50% | 312 |
| 90% | 280 |
28°F threshold
| 10% | 50% | 90% | |
|---|---|---|---|
| Last, on or after | February 11 | January 11 | December 13 |
| First, on or before | December 1 | December 26 | January 28 |
| Season at least | 365 days | 352 days | 317 days |
36°F threshold
| 10% | 50% | 90% | |
|---|---|---|---|
| Last, on or after | March 15 | February 27 | January 31 |
| First, on or before | November 13 | November 30 | December 15 |
| Season at least | 304 days | 276 days | 247 days |
Station E MESA, AZ US (USC00022782). Completeness flag R, 15 years used for the 32°F dates. NCEI’s annual probability of at least one day at or below 32°F is 98.2%. Freeze dates are conditional on that threshold occurring. Elevation 462.7 m. The same probability language applies to the 28°F and 36°F rows when those dates passed the same quality checks.