Walhalla, SC frost dates
From NOAA weather station Walhalla (USC00388887), elevation 980 ft. The station is named for Walhalla, and its coordinates are 1.5 miles from the Census Bureau’s internal point for Walhalla city.
Summary
In the 1991–2020 record, the median last spring freeze (32°F) at Walhalla is Apr 11 and the median first fall freeze is Oct 30, for a typical freeze-free season of 203 days. In about 1 year in 10 the last spring freeze comes after Apr 25, and in about 1 year in 10 the first fall freeze arrives by Oct 17. The station averages 79 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 16 days later than the state median (Mar 26), the median first freeze is 10 days earlier than the state median (Nov 9), and the growing season ranks #99 of 103 by length (longest = #1). The spread between the 90% and 10% spring dates is 33 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 22 | May 6 | Oct 10 | Oct 22 | Nov 2 | 164 / 181 / 201 |
| 32°F (freeze) | Mar 23 | Apr 11 | Apr 25 | Oct 17 | Oct 30 | Nov 11 | 181 / 203 / 226 |
| 28°F (hard freeze) | Mar 8 | Mar 30 | Apr 16 | Oct 27 | Nov 9 | Nov 28 | 202 / 227 / 253 |
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 Walhalla
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 Walhalla: Walhalla (2 mi), West Union (2 mi), Westminster (6 mi), Keowee Key (10 mi).
Nearby stations
- Long Creek, SC — 10 mi; median last freeze Apr 9, first freeze Oct 29
- Clemson Oconee Co AP, SC — 12 mi; median last freeze Mar 21, first freeze Nov 11
- Clemson Univ, SC — 16 mi; median last freeze Apr 1, first freeze Nov 3
- Jocassee 8 WNW, SC — 16 mi; median last freeze Apr 26, first freeze Oct 17
- Toccoa, GA — 19 mi; median last freeze Mar 23, first freeze Nov 11
About this station’s data
- Station ID: USC00388887 · Latitude 34.7544, longitude -83.0750 · Elevation 299 m (980 ft)
- NOAA completeness flag: S — Standard: meets WMO data-availability standards for 24 or more years. Years of data used: 28.
- Source file: USC00388887.csv (NOAA NCEI 1991–2020 annual/seasonal normals).
Raw values from the NOAA file (32°F)
| Field | Value |
|---|---|
ANN-TMIN-PRBLST-T32FP10 | 04/25 |
ANN-TMIN-PRBLST-T32FP50 | 04/11 |
ANN-TMIN-PRBLST-T32FP90 | 03/23 |
ANN-TMIN-PRBFST-T32FP10 | 10/17 |
ANN-TMIN-PRBFST-T32FP50 | 10/30 |
ANN-TMIN-PRBFST-T32FP90 | 11/11 |
ANN-TMIN-PRBGSL-T32FP10 | 226.0 |
ANN-TMIN-PRBGSL-T32FP50 | 203.0 |
ANN-TMIN-PRBGSL-T32FP90 | 181.0 |