Brunswick, GA frost dates
From NOAA weather station Brunswick Malcolm Mckinnon AP (USW00013878), elevation 16 ft. The station is named for Brunswick, and its coordinates are 4.6 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 Malcolm Mckinnon AP is Feb 9 and the median first fall freeze is Dec 26, for a typical freeze-free season of 312 days. In about 1 year in 10 the last spring freeze comes after Mar 6, and in about 1 year in 10 the first fall freeze arrives by Nov 30. The station averages 8 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 40 days earlier than the state median (Mar 21), the median first freeze is 44 days later than the state median (Nov 12), and the growing season ranks #2 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 1 | Feb 27 | Mar 18 | Nov 16 | Dec 4 | Jan 1 | 251 / 282 / 312 |
| 32°F (freeze) | Jan 11 | Feb 9 | Mar 6 | Nov 30 | Dec 26 | Jan 19 | 279 / 312 / 346 |
| 28°F (hard freeze) | Dec 30 | Jan 27 | Feb 26 | Dec 13 | Jan 8 | Feb 7 | 308 / 341 / 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 Malcolm Mckinnon AP: St. Simons (2 mi), Jekyll Island (6 mi).
Nearby stations
- Brunswick, GA — 7 mi; median last freeze Feb 8, first freeze Dec 25
- Sapelo Is, GA — 18 mi; median last freeze Feb 20, first freeze Dec 19
- Woodbine, GA — 23 mi; median last freeze Mar 14, first freeze Nov 25
- Brunswick 23 S, GA — 24 mi; median last freeze Feb 19, first freeze Dec 14
- Nahunta 6NE, GA — 32 mi; median last freeze Mar 25, first freeze Nov 15
About this station’s data
- Station ID: USW00013878 · Latitude 31.1522, longitude -81.3908 · Elevation 5 m (16 ft)
- NOAA completeness flag: S — Standard: meets WMO data-availability standards for 24 or more years. Years of data used: 24.
- Source file: USW00013878.csv (NOAA NCEI 1991–2020 annual/seasonal normals).
Raw values from the NOAA file (32°F)
| Field | Value |
|---|---|
ANN-TMIN-PRBLST-T32FP10 | 03/06 |
ANN-TMIN-PRBLST-T32FP50 | 02/09 |
ANN-TMIN-PRBLST-T32FP90 | 01/11 |
ANN-TMIN-PRBFST-T32FP10 | 11/30 |
ANN-TMIN-PRBFST-T32FP50 | 12/26 |
ANN-TMIN-PRBFST-T32FP90 | 01/19 |
ANN-TMIN-PRBGSL-T32FP10 | 346.0 |
ANN-TMIN-PRBGSL-T32FP50 | 312.0 |
ANN-TMIN-PRBGSL-T32FP90 | 279.0 |