McClellanville, SC frost dates
From NOAA weather station Mcclellanville 7 NE (USW00003728), elevation 9 ft. The station is named for McClellanville, and its coordinates are 7.5 miles from the Census Bureau’s internal point for McClellanville town.
Summary
In the 1991–2020 record, the median last spring freeze (32°F) at Mcclellanville 7 NE is Feb 28 and the median first fall freeze is Dec 1, for a typical freeze-free season of 277 days. In about 1 year in 10 the last spring freeze comes after Mar 25, and in about 1 year in 10 the first fall freeze arrives by Nov 11. The station averages 20 nights per year with a low of 32°F or colder.
Compared with the median of 103 South Carolina stations in this dataset, the median last freeze here is 26 days earlier than the state median (Mar 26), the median first freeze is 22 days later than the state median (Nov 9), and the growing season ranks #6 of 103 by length (longest = #1). The spread between the 90% and 10% spring dates is 52 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 24 | Mar 19 | Apr 6 | Nov 2 | Nov 15 | Dec 6 | 220 / 246 / 275 |
| 32°F (freeze) | Feb 1 | Feb 28 | Mar 25 | Nov 11 | Dec 1 | Dec 31 | 247 / 277 / 310 |
| 28°F (hard freeze) | Jan 11 | Feb 6 | Mar 9 | Nov 27 | Dec 25 | Jan 23 | 276 / 312 / 347 |
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 McClellanville
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.
Nearby stations
- Mcclellanville, SC — 8 mi; median last freeze Mar 17, first freeze Nov 21
- Georgetown Co AP, SC — 12 mi; median last freeze Mar 12, first freeze Nov 24
- Jamestown, SC — 21 mi; median last freeze Mar 22, first freeze Nov 13
- Andrews, SC — 23 mi; median last freeze Mar 23, first freeze Nov 13
- Brookgreen Gardens, SC — 30 mi; median last freeze Mar 18, first freeze Nov 18
About this station’s data
- Station ID: USW00003728 · Latitude 33.1533, longitude -79.3636 · Elevation 3 m (9 ft)
- NOAA completeness flag: R — Representative: meets WMO standards for 10 or more years; gaps filled from surrounding stations. Years of data used: 18.
- Source file: USW00003728.csv (NOAA NCEI 1991–2020 annual/seasonal normals).
Raw values from the NOAA file (32°F)
| Field | Value |
|---|---|
ANN-TMIN-PRBLST-T32FP10 | 03/25 |
ANN-TMIN-PRBLST-T32FP50 | 02/28 |
ANN-TMIN-PRBLST-T32FP90 | 02/01 |
ANN-TMIN-PRBFST-T32FP10 | 11/11 |
ANN-TMIN-PRBFST-T32FP50 | 12/01 |
ANN-TMIN-PRBFST-T32FP90 | 12/31 |
ANN-TMIN-PRBGSL-T32FP10 | 310.0 |
ANN-TMIN-PRBGSL-T32FP50 | 277.0 |
ANN-TMIN-PRBGSL-T32FP90 | 247.0 |