North Myrtle Beach, SC frost dates
From NOAA weather station N Myrtle Bch AP (USW00093718), elevation 32 ft. The station is named for North Myrtle Beach, and its coordinates are 1.4 miles from the Census Bureau’s internal point for North Myrtle Beach city.
Summary
In the 1991–2020 record, the median last spring freeze (32°F) at N Myrtle Bch AP is Mar 13 and the median first fall freeze is Nov 20, for a typical freeze-free season of 255 days. In about 1 year in 10 the last spring freeze comes after Mar 31, and in about 1 year in 10 the first fall freeze arrives by Nov 4. The station averages 34 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 13 days earlier than the state median (Mar 26), the median first freeze is 11 days later than the state median (Nov 9), and the growing season ranks #12 of 103 by length (longest = #1). The spread between the 90% and 10% spring dates is 39 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) | Mar 6 | Mar 26 | Apr 10 | Oct 28 | Nov 10 | Nov 28 | 206 / 230 / 257 |
| 32°F (freeze) | Feb 20 | Mar 13 | Mar 31 | Nov 4 | Nov 20 | Dec 16 | 229 / 255 / 286 |
| 28°F (hard freeze) | Jan 29 | Feb 26 | Mar 18 | Nov 15 | Dec 6 | Jan 6 | 254 / 287 / 324 |
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 North Myrtle Beach
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 N Myrtle Bch AP: Atlantic Beach (1 mi), North Myrtle Beach (1 mi), Briarcliffe Acres (2 mi), Little River (7 mi).
Nearby stations
- Myrtle Beach, SC — 7 mi; median last freeze Mar 21, first freeze Nov 13
- Longwood, NC — 17 mi; median last freeze Mar 26, first freeze Nov 11
- Conway, SC — 19 mi; median last freeze Mar 15, first freeze Nov 22
- Shallotte Ag, NC — 21 mi; median last freeze Mar 20, first freeze Nov 17
- Brookgreen Gardens, SC — 29 mi; median last freeze Mar 18, first freeze Nov 18
About this station’s data
- Station ID: USW00093718 · Latitude 33.8117, longitude -78.7239 · Elevation 10 m (32 ft)
- NOAA completeness flag: R — Representative: meets WMO standards for 10 or more years; gaps filled from surrounding stations. Years of data used: 19.
- Source file: USW00093718.csv (NOAA NCEI 1991–2020 annual/seasonal normals).
Raw values from the NOAA file (32°F)
| Field | Value |
|---|---|
ANN-TMIN-PRBLST-T32FP10 | 03/31 |
ANN-TMIN-PRBLST-T32FP50 | 03/13 |
ANN-TMIN-PRBLST-T32FP90 | 02/20 |
ANN-TMIN-PRBFST-T32FP10 | 11/04 |
ANN-TMIN-PRBFST-T32FP50 | 11/20 |
ANN-TMIN-PRBFST-T32FP90 | 12/16 |
ANN-TMIN-PRBGSL-T32FP10 | 286.0 |
ANN-TMIN-PRBGSL-T32FP50 | 255.0 |
ANN-TMIN-PRBGSL-T32FP90 | 229.0 |