ZIP 77554 Zone 10a
Texas · USDA zone 10a, average annual extreme minimum 30°F to 35°F.
Nearest qualified station: GALVESTON SCHOLES FLD, TX US (USW00012923), 4.7 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% | December 21 | Earlier date. A last 32°F on or after this day is common. |
| 50% | January 18 | Median. |
| 10% | February 18 | 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% | December 13 | Earlier date. A first 32°F on or before this day is uncommon. |
| 50% | January 7 | Median. |
| 90% | February 7 | 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% | 365 |
| 50% | 365 |
| 90% | 328 |
28°F threshold
| 10% | 50% | 90% | |
|---|---|---|---|
| Last, on or after | February 11 | January 9 | December 17 |
| First, on or before | December 15 | January 8 | February 8 |
| Season at least | 365 days | 365 days | 358 days |
36°F threshold
| 10% | 50% | 90% | |
|---|---|---|---|
| Last, on or after | March 2 | January 30 | December 30 |
| First, on or before | December 1 | December 26 | January 23 |
| Season at least | 365 days | 334 days | 298 days |
Station GALVESTON SCHOLES FLD, TX US (USW00012923). Completeness flag R, 24 years used for the 32°F dates. NCEI’s annual probability of at least one day at or below 32°F is 48.4%. Freeze dates are conditional on that threshold occurring. Elevation 1.5 m. The same probability language applies to the 28°F and 36°F rows when those dates passed the same quality checks.