Blythewood, SC frost dates
From NOAA weather station Cedar Creek 2E (USC00381479), elevation 338 ft. The nearest Census place to the station coordinates is Blythewood town, 4.6 miles away.
Summary
In the 1991–2020 record, the median last spring freeze (32°F) at Cedar Creek 2E is Apr 10 and the median first fall freeze is Oct 28, for a typical freeze-free season of 201 days. In about 1 year in 10 the last spring freeze comes after Apr 23, and in about 1 year in 10 the first fall freeze arrives by Oct 15. The station averages 94 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 15 days later than the state median (Mar 26), the median first freeze is 12 days earlier than the state median (Nov 9), and the growing season ranks #100 of 103 by length (longest = #1). The spread between the 90% and 10% spring dates is 27 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) | Apr 7 | Apr 21 | May 4 | Oct 8 | Oct 20 | Nov 1 | 162 / 182 / 200 |
| 32°F (freeze) | Mar 27 | Apr 10 | Apr 23 | Oct 15 | Oct 28 | Nov 8 | 183 / 201 / 221 |
| 28°F (hard freeze) | Mar 9 | Mar 31 | Apr 14 | Oct 24 | Nov 5 | Nov 23 | 200 / 221 / 248 |
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 Blythewood
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 Cedar Creek 2E: Blythewood (5 mi), Irmo (10 mi).
Nearby stations
- Winnsboro, SC — 11 mi; median last freeze Mar 31, first freeze Nov 6
- Sandhill Rsch - Elgin, SC — 13 mi; median last freeze Mar 22, first freeze Nov 15
- Columbia Univ Of SC, SC — 16 mi; median last freeze Mar 16, first freeze Nov 16
- Columbia Owens Dwtn AP, SC — 18 mi; median last freeze Mar 13, first freeze Nov 19
- Columbia, SC — 19 mi; median last freeze Mar 25, first freeze Nov 7
About this station’s data
- Station ID: USC00381479 · Latitude 34.2172, longitude -81.0756 · Elevation 103 m (338 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: USC00381479.csv (NOAA NCEI 1991–2020 annual/seasonal normals).
Raw values from the NOAA file (32°F)
| Field | Value |
|---|---|
ANN-TMIN-PRBLST-T32FP10 | 04/23 |
ANN-TMIN-PRBLST-T32FP50 | 04/10 |
ANN-TMIN-PRBLST-T32FP90 | 03/27 |
ANN-TMIN-PRBFST-T32FP10 | 10/15 |
ANN-TMIN-PRBFST-T32FP50 | 10/28 |
ANN-TMIN-PRBFST-T32FP90 | 11/08 |
ANN-TMIN-PRBGSL-T32FP10 | 221.0 |
ANN-TMIN-PRBGSL-T32FP50 | 201.0 |
ANN-TMIN-PRBGSL-T32FP90 | 183.0 |