Calhoun Falls, SC frost dates
From NOAA weather station Calhoun Falls (USC00381277), elevation 530 ft. The station is named for Calhoun Falls, and its coordinates are 0.5 miles from the Census Bureau’s internal point for Calhoun Falls town.
Summary
In the 1991–2020 record, the median last spring freeze (32°F) at Calhoun Falls is Mar 27 and the median first fall freeze is Nov 7, for a typical freeze-free season of 226 days. In about 1 year in 10 the last spring freeze comes after Apr 11, and in about 1 year in 10 the first fall freeze arrives by Oct 26. The station averages 60 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 1 day later than the state median (Mar 26), the median first freeze is 2 days earlier than the state median (Nov 9), and the growing season ranks #63 of 103 by length (longest = #1). The spread between the 90% and 10% spring dates is 34 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 21 | Apr 6 | Apr 21 | Oct 17 | Oct 30 | Nov 11 | 187 / 206 / 225 |
| 32°F (freeze) | Mar 8 | Mar 27 | Apr 11 | Oct 26 | Nov 7 | Nov 24 | 205 / 226 / 250 |
| 28°F (hard freeze) | Feb 16 | Mar 13 | Mar 30 | Nov 5 | Nov 22 | Dec 15 | 227 / 253 / 284 |
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 Calhoun Falls
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 Calhoun Falls: Calhoun Falls (0 mi), Mount Carmel (7 mi), Lowndesville (9 mi), Lake Secession (14 mi), Antreville (14 mi).
Nearby stations
- Elberton 2 N, GA — 16 mi; median last freeze Apr 6, first freeze Oct 30
- Mccormick, SC — 21 mi; median last freeze Mar 28, first freeze Nov 7
- Hartwell Dam, GA — 22 mi; median last freeze Mar 25, first freeze Nov 12
- Greenwood, SC — 25 mi; median last freeze Mar 26, first freeze Nov 12
- Washington 2 ESE, GA — 26 mi; median last freeze Mar 22, first freeze Nov 13
About this station’s data
- Station ID: USC00381277 · Latitude 34.0906, longitude -82.5883 · Elevation 162 m (530 ft)
- NOAA completeness flag: S — Standard: meets WMO data-availability standards for 24 or more years. Years of data used: 26.
- Source file: USC00381277.csv (NOAA NCEI 1991–2020 annual/seasonal normals).
Raw values from the NOAA file (32°F)
| Field | Value |
|---|---|
ANN-TMIN-PRBLST-T32FP10 | 04/11 |
ANN-TMIN-PRBLST-T32FP50 | 03/27 |
ANN-TMIN-PRBLST-T32FP90 | 03/08 |
ANN-TMIN-PRBFST-T32FP10 | 10/26 |
ANN-TMIN-PRBFST-T32FP50 | 11/07 |
ANN-TMIN-PRBFST-T32FP90 | 11/24 |
ANN-TMIN-PRBGSL-T32FP10 | 250.0 |
ANN-TMIN-PRBGSL-T32FP50 | 226.0 |
ANN-TMIN-PRBGSL-T32FP90 | 205.0 |