Brunswick, GA frost dates
From NOAA weather station Brunswick 23 S (USW00063856), elevation 25 ft. The station is named for Brunswick, and its coordinates are 22.7 miles from the Census Bureau’s internal point for Brunswick city.
Summary
In the 1991–2020 record, the median last spring freeze (32°F) at Brunswick 23 S is Feb 19 and the median first fall freeze is Dec 14, for a typical freeze-free season of 299 days. In about 1 year in 10 the last spring freeze comes after Mar 14, and in about 1 year in 10 the first fall freeze arrives by Nov 21. The station averages 12 nights per year with a low of 32°F or colder.
Compared with the median of 126 Georgia stations in this dataset, the median last freeze here is 30 days earlier than the state median (Mar 21), the median first freeze is 32 days later than the state median (Nov 12), and the growing season ranks #3 of 126 by length (longest = #1). The spread between the 90% and 10% spring dates is 54 days, a measure of how variable spring is here.
Freeze probability table
| Threshold | Last spring occurrence | First fall occurrence | Season length (days) 90% / 50% / 10% | ||||
|---|---|---|---|---|---|---|---|
| Early (90% chance of a later freeze) | Median (50%) | Cautious (10% chance of a later freeze) | Early (10% chance by then) | Median (50%) | Late (90% chance by then) | ||
| 36°F (light frost possible) | Feb 12 | Mar 5 | Mar 31 | Nov 11 | Nov 29 | Dec 22 | 239 / 267 / 299 |
| 32°F (freeze) | Jan 19 | Feb 19 | Mar 14 | Nov 21 | Dec 14 | Jan 15 | 264 / 299 / 332 |
| 28°F (hard freeze) | Dec 31 | Feb 3 | Feb 28 | Dec 2 | Jan 3 | Feb 7 | 296 / 331 / 365 |
Read the spring “Cautious” column as the safer planting date: only about 1 year in 10 has a freeze after it. NOAA computes these from daily minimum temperatures at the station; your yard can differ, especially in low spots or at a different elevation.
Planting calendar for Brunswick
Pick how much frost risk you accept. The calendar applies generic, extension-published timing rules to this station’s dates. See the rules and sources.
| Crop | Start seeds indoors | Plant outdoors (spring) | Latest fall planting (est.) | Days to harvest |
|---|
Fall estimates count back from the median first fall freeze (32°F for tender crops, 28°F hard freeze for cool-season crops) by the longer days-to-harvest figure. These are rough planning aids, not recommendations for any specific variety; check seed packets and your county extension office.
Towns that use this station as their nearest
Census places within 15 miles whose closest station in this dataset is Brunswick 23 S: Kings Bay Base (6 mi), St. Marys (8 mi).
Nearby stations
- Woodbine, GA — 18 mi; median last freeze Mar 14, first freeze Nov 25
- Brunswick Malcolm Mckinnon AP, GA — 24 mi; median last freeze Feb 9, first freeze Dec 26
- Brunswick, GA — 25 mi; median last freeze Feb 8, first freeze Dec 25
- Folkston 9 SW, GA — 40 mi; median last freeze Feb 26, first freeze Dec 7
- Sapelo Is, GA — 42 mi; median last freeze Feb 20, first freeze Dec 19
About this station’s data
- Station ID: USW00063856 · Latitude 30.8078, longitude -81.4597 · Elevation 8 m (25 ft)
- NOAA completeness flag: R — Representative: meets WMO standards for 10 or more years; gaps filled from surrounding stations. Years of data used: 16.
- Source file: USW00063856.csv (NOAA NCEI 1991–2020 annual/seasonal normals).
Raw values from the NOAA file (32°F)
| Field | Value |
|---|---|
ANN-TMIN-PRBLST-T32FP10 | 03/14 |
ANN-TMIN-PRBLST-T32FP50 | 02/19 |
ANN-TMIN-PRBLST-T32FP90 | 01/19 |
ANN-TMIN-PRBFST-T32FP10 | 11/21 |
ANN-TMIN-PRBFST-T32FP50 | 12/14 |
ANN-TMIN-PRBFST-T32FP90 | 01/15 |
ANN-TMIN-PRBGSL-T32FP10 | 332.0 |
ANN-TMIN-PRBGSL-T32FP50 | 299.0 |
ANN-TMIN-PRBGSL-T32FP90 | 264.0 |